Dental Support Organizations
What is a DSO?
Dental Support Organization. 1/6 of American dentists are now DSO-affiliated, yet most patients have never heard the term.
The plain-English definition
A Dental Support Organization (DSO) is a company that runs the business side of dental practices: billing and insurance, hiring and HR, marketing, IT, purchasing, compliance, and real estate. The pitch is simple. Dentists do the dentistry, and the DSO does everything else, in exchange for a share of the economics.
Why the dentist still “owns” the practice on paper
Here’s the legal wrinkle that makes dental ownership so hard to see. Most states have corporate practice of dentistry laws, which say only a licensed dentist can own a dental practice. So the typical DSO structure looks like this: a licensed dentist (or a dentist-owned professional entity) owns the clinical practice on paper, while the DSO holds a long-term management agreement that provides all the business services and captures much of the financial upside.
Legally, a dentist owns it. Practically, the DSO runs it. This is why “who owns my dental office?” is a much harder question than it sounds, and why the name on the sign tells you almost nothing.
Privately owned is not the same as independent. A licensed dentist can own a practice on paper while a Dental Support Organization (DSO) or corporate group runs the business. We classify by management affiliation, not ownership title.
What about DPOs?
You may also run into the term Dental Partnership Organization (DPO). It’s a newer label that has emerged over the past few years, and for patients it’s essentially a DSO with a different emphasis. A DPO is still a corporate-affiliated support organization, but the structure is a little less rigid: it leans on genuine partnership with the dentist, who typically keeps a larger equity stake in their own practice and more say in how the office is run day to day.
The line between the two is blurry, and many groups use whichever term fits their pitch. We classify DPOs as corporate-affiliated right alongside DSOs, because the ownership and support relationship is the same in kind, just softer in degree. MB2 Dental is the prime example of the model.
How big has this gotten?
Consolidation has been fast. The share of DSO-affiliated dentists has more than doubled since 2015. The five largest DSOs alone support more than 5,600 dental practices, and the top ten support roughly 7,800. Behind them sit hundreds of smaller regional groups, most of which patients have never heard of.
Why dentistry is consolidating
Four forces drive it. First, new dentists graduate with heavy student debt, which makes buying a practice hard. Second, insurance reimbursements keep squeezing solo-practice margins. Third, a generation of baby boomer owner-dentists is retiring and needs buyers. Fourth, private equity supplies the capital, because dentistry offers recurring revenue in a highly fragmented market. Put those together and you get a steady roll-up of independent offices into larger platforms.
Not all DSOs look alike
It helps to think of three broad flavors:
National retail brands
One name on every sign, heavy advertising, extended hours, financing offers. Think Aspen Dental, Western Dental, or Affordable Dentures & Implants.
Quiet networks
The offices keep their original local names, and the parent stays invisible. Heartland Dental supports more than 1,900 practices this way. Smile Brands operates under 75+ names, and Dental Care Alliance under more than 150.
Partnership models
The supporting organization provides services while dentists keep real equity in their own practices. MB2 Dental calls itself a Dental Partnership Organization, and PDS Health runs an owner-dentist model.
The same office can feel completely different depending on which flavor is behind it.
Is a DSO office better or worse?
Neither, automatically. Scale can bring modern technology, longer hours, financing options, and consistent systems. It can also bring production targets, staff turnover, and rotating providers. Independent ownership is no guarantee of quality either. What matters is that incentives follow ownership, and you deserve to know which incentive structure you’re sitting in.
Look up who’s behind your dental office
We classify offices as independent private practice, multi-location private group practice, corporate or DSO-affiliated, or unverified using primary sources like the federal NPI registry and state licensing data. Free, about a minute.
Profiles of the biggest DSOs
Want to know who’s actually behind the brand? We’ve profiled the largest players, and we also track several regional single-brand DSOs (full profiles coming soon):
- Heartland DentalRead profileHide profile
the largest DSO in America, and the one you've probably never seen on a sign
Who is Heartland Dental? The largest DSO you’ve never seen on a sign
- What it is
- The largest dental support organization in the United States
- Founded
- 1997 by Dr. Rick Workman
- Headquarters
- Effingham, Illinois
- Size
- More than 1,900 supported practices across 39 states and Washington, D.C.
- Ownership
- Majority-owned by KKR, a global private equity firm
- Brands
- None you'd recognize. Supported offices keep their local practice names
The quiet giant of American dentistry
Heartland Dental is the biggest name in U.S. dentistry that almost no patient has ever heard of. Founded in 1997 by dentist Rick Workman in Effingham, Illinois, Heartland has grown into the country’s largest DSO by a wide margin, supporting more than 1,900 dental practices coast to coast.
The reason you’ve never noticed is intentional. Unlike branded chains, Heartland-supported offices keep their original local names. The practice down the street called Main Street Family Dental or Smith & Jones Dentistry may be a Heartland office, and nothing on the sign, the website, or the waiting room wall will tell you. Heartland describes its approach as doctor-led, with the supported dentist guiding clinical care while Heartland runs the business behind the scenes.
Who owns Heartland Dental?
Heartland is majority-owned by KKR, one of the largest private equity firms in the world. Heartland has been private-equity backed for much of its history, and it has used that capital to grow aggressively, opening brand-new offices and acquiring existing practices and even entire competing groups. One of its largest moves was the 2021 acquisition of American Dental Partners, which brought roughly 278 practices in 21 states into the network.
How the model works
Heartland is the textbook example of the “quiet network” DSO. It signs long-term support agreements with dentist-owned practices, providing marketing, billing, HR, purchasing, IT, continuing education, and administrative staff. Dentists get training programs and business support that a solo office can’t match. In exchange, Heartland captures a share of the economics and standardizes operations across the network.
For patients, the practical effect is that the experience of an acquisition is subtle. The name stays. The dentist often stays, at least for a while. What changes first is usually the software, the billing paperwork, and over time the staff.
What patients should know
A Heartland affiliation isn’t a red flag by itself. Heartland offices tend to have modern technology, consistent systems, and well-trained teams. But it does mean the business decisions behind your care, from insurance participation to scheduling to growth targets, are shaped by a national organization and its private equity owner rather than the dentist whose name may still be on the door. That’s information worth having, and it’s exactly the kind of ownership detail that never appears on a practice’s own website.
Is your dental office a Heartland practice?
Because Heartland offices carry local names, the only reliable way to know is to check. Look up any dental office for free, where practices are classified as independent private practice, multi-location private group practice, corporate or DSO-affiliated, or unverified based on primary-source data. You can also read the full explainer on this page for what a DSO is and how the model works.
Sources
- Becker's Dental Review: The largest DSOs headed into 2026
- Medix Dental: 15 Largest DSOs in the US for 2026
- DentistryIQ: Heartland Dental acquisition of American Dental Partners
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
Practice brands under Heartland Dental
Names patients actually see on the door. An office can carry one of these brands and still be supported by the parent organization above.
- American Dental PartnersReadHide
a former NASDAQ-listed support organization Heartland absorbed in 2021
- What it is
- A dental support organization acquired by Heartland Dental
- Founded
- 1995, by Gregory A. Serrao
- Headquarters
- Wakefield, Massachusetts
- Former listing
- NASDAQ, ticker ADPI, taken private by JLL Partners in 2012 for about $398 million
- Size at acquisition
- 23 dental group practices across 278 locations in 21 states
- Acquired
- Closed June 2021, by Heartland Dental
American Dental Partners matters here because it is the reason so many local names now trace back to Heartland. It spent years affiliating regional group practices under their own brands, and all of them moved to Heartland with the 2021 transaction. If your office belongs to one of those groups, the sign never changed.
The group practices it listed as affiliates in its 2010 annual report were 1st Advantage Dental, Advanced Dental Specialists, American Family Dentistry, Arizona’s Tooth Doctor for Kids, Associated Dental Care Providers, Carus Dental, Chestnut Hills Dental, Christie Dental, Cincinnati Dental Services, Cumberland Dental, Deerwood Orthodontics, ForwardDental, Fusion Dental, Lakeside Dental Care, Metro Dentalcare, Oklahoma Dental Group, Orthodontic Care Specialists, Premier Dental Partners, Redwood Dental Group, Riverside Dental Group, Sacramento Oral Surgery, Texas Tooth Doctor for Kids, University Dental Associates, Valley Dental Group, and Western New York Dental Group. That list is a snapshot of a 2010 filing, not a current roster, so treat it as a starting point for checking a name rather than proof of today’s ownership.
Sources
- Christie DentalReadHide
a Florida group that reached Heartland through American Dental Partners
- What it is
- A Florida multi-specialty dental group supported by Heartland Dental
- Founded
- 1997, as a single location in Merritt Island, Florida
- Region
- Central and east-central Florida
- Affiliated
- December 2009, with American Dental Partners
- Now part of
- Heartland Dental, which acquired American Dental Partners in 2021
Christie Dental is a two-step chain: an independent Florida group that affiliated with American Dental Partners in 2009, then moved to Heartland when Heartland bought American Dental Partners in 2021. Office paperwork often shows the legal entity CDPG, P.A. Individual Christie Dental office websites carry a Heartland Dental disclaimer, which is usually the clearest public marker of the relationship.
Sources
- Smile Design DentistryReadHide
a 60-office Florida group Heartland acquired in September 2025
- What it is
- A Florida dental group and former standalone support organization
- Founded
- 2004, by Dr. Mili Patel and Sachin Patel
- Region
- Central Florida and the Tampa Bay area
- Size at acquisition
- 60 supported practices
- Acquired
- September 2025, by Heartland Dental
- Prior owner
- Tenex Capital Management, which invested in 2018
Smile Design Dentistry was a support organization in its own right, backed by private equity, before Heartland acquired it in September 2025. The brand name is still in use, which is consistent with Heartland’s general pattern of keeping local names on the door.
Sources
- Comfortable Care DentalReadHide
a Florida group whose offices carry Heartland Dental's Orahh Care branding
- What it is
- A Florida dental group supported by Heartland Dental
- Region
- Florida
- How the link is documented
- Comfortable Care location websites carry the Heartland Dental LLC disclaimer and participate in Orahh Care Dental Community, a Heartland-owned brand
- Acquisition record
- No public announcement names a date or deal terms
Comfortable Care Dental keeps its own name on the door, which is exactly how Heartland’s model usually looks. The relationship is not hidden, but you have to know where to look: each location’s website states that “Orahh Care Dental Community is a brand owned by Heartland Dental LLC, which is a dental support organization that provides administrative and business support services to the dental practices.” We confirmed that language on the Clearwater, Venice, and Sarasota sites.
We previously listed Comfortable Care as an independent regional group. That was wrong, and we corrected it in August 2026. We could not find any press release or filing announcing when Comfortable Care joined Heartland, so we do not state a date, and no founding year is published for the group either. If you have a primary source for either, send it to us and we will cite it.
Sources
- Aspen Dental and The Aspen GroupRead profileHide profile
the most recognizable name in corporate dentistry
Who owns Aspen Dental? Inside The Aspen Group (TAG)
- What it is
- The most recognizable branded dental chain in America
- Parent company
- The Aspen Group (TAG), formerly Aspen Dental Management, Inc. (ADMI)
- Founder and CEO
- Bob Fontana
- Headquarters
- Chicago, Illinois (800 W. Fulton Market)
- Size
- More than 1,000 Aspen Dental offices; TAG overall supports roughly 1,400+ locations in 48 states with over 5,300 clinicians
- Ownership
- Majority-owned by private equity firms Leonard Green & Partners and Ares Management, with American Securities, management, and dentist partners holding the rest
- Brands
- Aspen Dental, ClearChoice Dental Implant Centers, WellNow Urgent Care, Chapter Aesthetic Studio, Lovet Pet Health Care, and the Motto clear aligner product
The billboard brand of corporate dentistry
If the average American can name one dental chain, it’s Aspen Dental. The brand grew out of upstate New York in the 1990s and, under founder Bob Fontana, became the flagship of what is now The Aspen Group (TAG), a Chicago-based consumer healthcare company. Aspen opened its 1,000th office in 2022 and at one point was opening a new location every four days.
Aspen’s model is retail dentistry: high-visibility locations, heavy advertising, extended hours, same-day dentures, and financing offers aimed at patients without insurance. Since 2004, its Practice Ownership Program has offered dentists a structured path to buy into the office they run, which is both a recruiting tool and the engine behind Aspen’s rapid new-office growth.
Bigger than dentistry
In 2021, Aspen Dental Management rebranded as TAG and revealed just how far the platform extends. Beyond Aspen Dental, TAG owns ClearChoice Dental Implant Centers (acquired in 2020), WellNow Urgent Care, Chapter Aesthetic Studio med spas, and Lovet Pet Health Care, formerly AZPetVet. The portfolio reported $4.2 billion in annualized revenue in the first half of 2025. When you sit in an Aspen chair, you’re a patient of the largest consumer healthcare roll-up in dentistry.
Who actually owns it?
TAG is majority-owned by private equity. Independent industry analysis estimates that Leonard Green & Partners and Ares Management together hold roughly 80 percent, with American Securities, company management, and dentist partners holding the balance. Industry reporting has also noted the platform’s history of debt-funded growth, including a 2021 dividend that drew a ratings-outlook downgrade, along with recurring consumer-protection scrutiny of its advertising and financing practices over the years.
What patients should know
Aspen offices are technically owned by licensed dentists, with TAG providing management under long-term agreements, the standard DSO structure. The upside of the model is access: convenient locations, transparent entry pricing, and financing for people other offices turn away. The trade-off is that you’re inside a high-volume, marketing-driven system where treatment plans and financing offers are part of the business engine. As with any office, get an itemized treatment plan, and don’t hesitate to seek a second opinion on major work.
Is your office part of the Aspen network?
Aspen offices are clearly branded, but ClearChoice centers and other TAG properties are separate names entirely. Look up any dental office for free to see how it’s classified, and read the full explainer on this page for what a DSO is.
Sources
- TAG press release: H1 2025 results and portfolio overview
- The Molar Report: Aspen Dental company profile
- American Securities: The Aspen Group portfolio page
- PR Newswire: ADMI rebrands as TAG (2021)
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
Practice brands under Aspen Dental and The Aspen Group
Names patients actually see on the door. An office can carry one of these brands and still be supported by the parent organization above.
- Aspen DentalReadHide
the flagship brand of The Aspen Group, with about 1,090 offices
- What it is
- A general dentistry brand offering preventive care, dentures, implants, and oral surgery
- Founded
- 1998, in East Syracuse, New York
- Size
- About 1,090 offices, per Aspen Dental's own office locator (August 2026)
- Region
- 48 states
- Parent ownership
- The Aspen Group, owned by Ares Management, Leonard Green & Partners, and American Securities
Aspen Dental is the most recognizable name in corporate dentistry and the brand The Aspen Group was built on. Motto clear aligners are sold inside Aspen offices as a product line rather than as a separate practice brand, so you will not find a Motto location of its own.
Sources
- ClearChoice Dental Implant CentersReadHide
implant-only centers acquired by Aspen Dental Management in 2020
- What it is
- Specialty centers focused on full-arch and single-tooth dental implants
- Founded
- 2005
- Acquired
- December 2020, by Aspen Dental Management
- Size
- 104 centers in 36 states, counted from ClearChoice's own locations directory (August 2026)
- Size at acquisition
- 65 centers in 27 states, as of the 2020 deal
ClearChoice centers do implants rather than general dentistry, and they carry their own name rather than the Aspen one, so patients often do not realize the two share a parent. ClearChoice does not publish a running center count, so we count their own locations directory instead: 104 centers as of August 2026, up from 65 at the 2020 acquisition.
Sources
- PDS HealthRead profileHide profile
the founder-led giant behind hundreds of “Modern Dentistry” offices
Who is PDS Health? The founder-led giant behind “Modern Dentistry”
- What it is
- One of the three largest DSOs in the U.S., rebranded from Pacific Dental Services in 2024
- Founded
- 1994 by Stephen E. Thorne IV
- Headquarters
- Henderson, Nevada (relocated from Irvine, California in 2024)
- Size
- Nearly 1,000 dental, dental specialty, and primary care practices across roughly 25 states
- Ownership
- Privately held and founder-led; no controlling private equity sponsor
- Brands
- Supported offices typically carry local names, often in the “[City] Modern Dentistry” format, connected by the Smile Generation referral network
The DSO that isn’t private equity owned
PDS Health stands out from nearly every other name on the top-ten DSO list for one reason: it has no private equity owner. Founder Stephen E. Thorne IV started managing his father’s struggling dental office in 1989, launched Pacific Dental Services in 1994 with a single Southern California practice, and still runs the company today. Three decades later, PDS supports close to 1,000 practices and remains privately held.
In 2024 the company rebranded from Pacific Dental Services to PDS Health, signaling a bet on what it calls the Mouth-Body Connection: the idea that oral health and overall health belong in one integrated system. PDS was the first dental organization to implement Epic, the electronic health record system used by most major hospitals, across its supported practices, and it now supports primary care practices alongside dental offices.
How the model works
PDS uses an owner-dentist structure. Supported dentists own their practices while PDS provides the business machinery: real estate, technology, marketing, billing, and staffing support. Most offices carry local names, frequently in the “Modern Dentistry” format (think Riverside Modern Dentistry), and are connected to patients through Smile Generation, PDS’s marketing and referral brand that also offers financing.
So while you won’t see “PDS” on a sign, the naming pattern is one of the more recognizable fingerprints in the industry once you know to look for it.
What patients should know
PDS’s founder-led, non-PE ownership genuinely changes the incentive picture compared to platforms built for a private equity exit every five to seven years. The company can plan on longer horizons. That said, it’s still a large, growth-oriented organization with centralized systems, marketing engines, and financing products, and a PDS-supported office operates very differently from a solo independent practice. The Epic integration is a real patient benefit: your dental records can travel with your medical records in a way almost no other dental office can offer.
Is your office a PDS practice?
If your dental office’s name ends in “Modern Dentistry” or mentions Smile Generation, there’s a good chance it’s PDS-supported, but plenty of PDS offices carry other names too. Look up any dental office for free to see how it’s classified, and read the full explainer on this page for what a DSO is.
Sources
- PDS Health: Our Story
- Wikipedia: Pacific Dental Services
- Orange County Business Journal: Stephen Thorne profile
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
Practice brands under PDS Health
Names patients actually see on the door. An office can carry one of these brands and still be supported by the parent organization above.
- Smile GenerationReadHide
PDS Health's patient-facing network name, not a practice name
- What it is
- The consumer network and referral brand for PDS Health supported offices
- Size
- More than 1,000 dental offices
- Region
- 24 states
- Important distinction
- No dental office is named Smile Generation; offices are described as Smile Generation-trusted
Smile Generation is worth understanding precisely because it is not a name on a door. PDS Health supported offices trade under local names such as a city plus Modern Dentistry, Dental Group, or Smiles Dentistry, and Smile Generation is the umbrella that markets and connects them. That means a brand name alone will not tell you an office is PDS supported; its presence in the Smile Generation directory will.
Sources
- MB2 DentalRead profileHide profile
the fast-growing doctor-partnership model
Who is MB2 Dental? The doctor-partnership model, explained
- What it is
- The largest “Dental Partnership Organization” (DPO) and one of the five largest dental groups in the U.S.
- Founded
- 2007 by Dr. Chris Steven Villanueva
- Headquarters
- Carrollton, Texas (Dallas metro)
- Size
- More than 800 partner practices across roughly 45 states, with about 1,900 doctors
- Ownership
- Doctor partners hold equity in their own practices; institutional investors include Charlesbank Capital Partners (controlling stake since 2021) and Warburg Pincus (a $525 million investment in 2024 at a valuation above $3.5 billion)
- Brands
- None. Partner practices keep their local names
The roll-up where dentists keep the keys
Most dental consolidators buy a practice, employ the dentist, and absorb the office into a corporate machine. MB2 Dental built its entire pitch on the opposite promise. Founded in 2007 by dentist Chris Steven Villanueva out of his own practice, MB2 calls itself a Dental Partnership Organization, and the distinction is real: affiliated dentists keep meaningful equity in their own individual practices through joint ventures, rather than trading it all for cash or a sliver of a holding company.
That model resonated. MB2 grew largely through dentist referrals, crossed its 800th practice in September 2025, and now spans roughly 45 states. It typically partners with established practices doing over $1.25 million in revenue, and the practices keep their existing local names, so patients rarely notice anything changed.
Who owns MB2?
The ownership stack has two layers. At the practice level, the local dentist and MB2 co-own each office. At the platform level, MB2 has taken three rounds of private equity investment, each structured as a recapitalization that paid out doctor partners along the way: Sentinel Capital Partners in 2017, Charlesbank Capital Partners taking a controlling interest in 2021, and Warburg Pincus investing $525 million in late 2024 at an enterprise value above $3.5 billion, with KKR as a major lender. So while the marketing emphasizes doctor ownership, large private equity firms sit at the top of the structure and expect returns like any other investor.
What patients should know
For patients, an MB2 partnership is one of the gentler versions of consolidation. The dentist who owns your office usually still owns a real piece of it and still has direct financial skin in its long-term reputation, which is a different incentive than a salaried associate hitting corporate targets. At the same time, MB2 practices plug into centralized billing, purchasing, and revenue-cycle systems, and the platform’s PE backers ultimately need the whole network to grow. The local name on the door is authentic, but it’s no longer the whole story.
Is your office an MB2 partner practice?
Because MB2 practices keep their original names, there’s no visual tell. Look up any dental office for free to see how it’s classified, and read the full explainer on this page for what a DSO is.
Sources
- Warburg Pincus: MB2 Dental recapitalization announcement (2024)
- MB2 Dental: 2024 year in review
- The Molar Report: MB2 Dental company profile
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
- Smile BrandsRead profileHide profile
the company behind Bright Now! Dental and 75+ other names
Who is Smile Brands? The company behind Bright Now! Dental and 75+ other names
- What it is
- One of the five largest DSOs in the U.S., built on a deliberate multi-brand strategy
- Founded
- 1998 (co-founded by CEO Steve Bilt, whose Bright Now! Dental was the predecessor)
- Headquarters
- Irvine, California
- Size
- More than 600 affiliated offices across 29 states, with roughly 2,200 affiliated dentists
- Ownership
- Gryphon Investors, a San Francisco private equity firm, since 2016
- Brands
- More than 75, anchored by Bright Now! Dental, Monarch Dental, and Castle Dental, plus regional names like Midwest Dental, Merit Dental, Mondovi Dental, Johnson Family Dental, and A+ Dental Care
One company, 75 names
Most dental chains want you to recognize their brand. Smile Brands runs the opposite playbook. Its network of 600+ offices operates under more than 75 different consumer names, from the nationally advertised Bright Now! Dental to single-market practices most patients would never guess share a parent company. The strategy is intentional: preserve the local goodwill of an acquired practice’s name while standardizing everything behind the scenes under one back office in Irvine.
The three anchor brands are Bright Now! Dental, Monarch Dental (concentrated in Texas), and Castle Dental. A 2020 acquisition of Midwest Dental added more than 230 offices and brought the Midwest Dental, Merit Dental, and Mondovi Dental names into the family, extending the footprint across the Upper Midwest and New England. The company’s positioning throughout is affordability, captured in its “Smiles for Everyone” tagline.
Who owns Smile Brands?
Smile Brands is owned by Gryphon Investors, a middle-market private equity firm based in San Francisco. The history has a full-circle twist: Gryphon originally backed the predecessor company Bright Now! Dental from 1998 to 2005, then re-acquired the platform in 2016 and reinstalled co-founder Steve Bilt as CEO. Under Gryphon’s ownership, the network has roughly doubled through acquisitions and new affiliations.
What patients should know
The multi-brand model means Smile Brands is one of the hardest DSOs for a patient to spot. Your “family dental” office with a decades-old local name may be one of its 75+ banners, with billing, purchasing, scheduling systems, and financial targets set centrally. That isn’t inherently bad; scale brings consistent systems and an affordability focus that genuinely serves patients other offices price out. But it’s a clear example of why the name on the door and the ownership behind it are two different questions. If your longtime office was recently acquired, the early signs usually show up in the paperwork and the phones before anything else.
Is your office a Smile Brands affiliate?
With 75+ names in play, guessing is hopeless. Look up any dental office for free to see how it’s classified, and read the full explainer on this page for what a DSO is.
Sources
- Becker's Dental Review: 52 DSOs to know in 2026
- Gryphon Investors: Smile Brands acquisition announcement
- The Molar Report: Smile Brands company profile
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
Practice brands under Smile Brands
Names patients actually see on the door. An office can carry one of these brands and still be supported by the parent organization above.
- Bright Now! DentalReadHide
Smile Brands' largest retail office brand, in eleven states
- What it is
- A general and orthodontic office brand supported by Smile Brands
- Region
- Arizona, California, Colorado, Florida, Indiana, Maryland, Ohio, Oregon, Pennsylvania, Virginia, and Washington
- Corporate lineage
- Bright Now! Dental, Inc. was the Smile Brands operating company through the mid-2000s
Bright Now! Dental is the most visible name in the Smile Brands network. The signage usually reads Bright Now! Dental & Orthodontics. Smile Brands publishes company-wide totals rather than per-brand office counts, so the number of Bright Now! offices specifically is not public.
Sources
- Monarch DentalReadHide
a Smile Brands brand in Arkansas, Texas, and Utah, acquired in 2003
- What it is
- A general and orthodontic office brand supported by Smile Brands
- Region
- Arkansas, Texas, and Utah
- Joined Smile Brands
- February 2003, through the acquisition of Monarch Dental Corporation
Monarch Dental came to Smile Brands in 2003. The brand has since been consolidated in places: Smile Brands rebranded its Ohio and Indiana Monarch offices to Bright Now! Dental in 2011, which is why the same owner can appear under a different name depending on the state.
Sources
- Castle DentalReadHide
a Houston brand founded in 1948, now part of Smile Brands
- What it is
- A general and orthodontic office brand supported by Smile Brands
- Founded
- 1948, by Dr. Jack H. Castle, in Houston, Texas
- Region
- Tennessee and Texas
- Joined Smile Brands
- June 2004, when the group had 73 offices
Castle Dental is one of the older names in the Smile Brands network, founded in Houston in 1948 and acquired in 2004. Its footprint has narrowed since the acquisition, when the group also had offices in Florida and California.
Sources
- Midwest DentalReadHide
a Wisconsin brand founded in 1968 that joined Smile Brands in 2020
- What it is
- A general dentistry office brand supported by Smile Brands
- Founded
- 1968, by David Hehli, in Mondovi, Wisconsin
- Region
- Wisconsin, Illinois, Minnesota, Missouri, Kansas, and Iowa
- Joined Smile Brands
- December 2020
Midwest Dental was itself a support organization before Smile Brands bought it in December 2020, a deal that covered more than 230 offices across 17 states and brought in the Merit Dental and Mondovi Dental brands at the same time.
Sources
- Merit DentalReadHide
the Great Lakes brand from the 2020 Midwest Dental acquisition
- What it is
- A general dentistry office brand supported by Smile Brands
- Region
- Ohio, Michigan, Pennsylvania, and Indiana
- Joined Smile Brands
- December 2020, as one of the Midwest Dental brands
Merit Dental came to Smile Brands as part of the Midwest Dental group rather than as a separate purchase. No founding year or office count is published for the brand on its own.
Sources
- Mondovi DentalReadHide
the Northeast brand from the 2020 Midwest Dental acquisition
- What it is
- A general dentistry office brand supported by Smile Brands
- Region
- Connecticut, Massachusetts, New Hampshire, New Jersey, and New York
- Joined Smile Brands
- December 2020, as one of the Midwest Dental brands
- Name origin
- Mondovi, Wisconsin, where its former parent Midwest Dental was founded
Mondovi Dental carries a Wisconsin town name across the Northeast, a reminder that a brand on the door often says more about a past transaction than about who practices there today.
Sources
- Sonrava HealthRead profileHide profile
the parent of Western Dental, Brident, and more
Who owns Western Dental? Meet Sonrava Health
- What it is
- One of the largest and oldest DSOs in the U.S., rebranded from Western Dental to Sonrava Health
- Roots
- Western Dental traces its history to 1903
- Headquarters
- Orange, California
- Size
- Nearly 600 affiliated offices across 21 states, serving roughly 3 to 4 million patient visits per year with 1,400+ doctors
- Ownership
- New Mountain Capital, a New York private equity firm, since 2012
- Brands
- Western Dental & Orthodontics, Western Dental Kids, Brident Dental & Orthodontics, DentalWorks, Perfect Teeth, Vital Smiles, and LooksBrite Optometry Centers
From California institution to national platform
Western Dental has been part of the California landscape for over a century, and for decades it was the state’s best-known retail dental chain, focused on affordable, accessible care. Today it’s the flagship brand of Sonrava Health, a multi-brand platform that has expanded coast to coast.
The brand map breaks down regionally. Western Dental & Orthodontics runs more than 350 offices in California, Arizona, and Nevada. Brident Dental & Orthodontics covers Texas with 80+ offices. The 2022 acquisition of Mid-Atlantic Dental Partners added roughly 215 offices and brought in the DentalWorks and Perfect Teeth names across the Midwest, Mid-Atlantic, and Mountain West, and a 2023 deal added a foothold in Florida. Vital Smiles serves Alabama, and LooksBrite extends the platform into eye care.
Who owns Sonrava?
Sonrava Health is owned by New Mountain Capital, a New York-based private equity firm that acquired Western Dental in 2012 from another private equity owner, Court Square Capital Partners. New Mountain built the platform through a string of DSO acquisitions, keeping the acquired brands alive rather than converting everything to the Western Dental name.
The Medicaid angle
One thing genuinely distinguishes this platform: industry reporting has identified Western Dental as the single largest Medicaid dental provider in both California and Texas. That makes Sonrava a major access point for patients that many private practices don’t serve, since Medicaid reimbursement rates are typically the lowest of any payer. It also means the platform operates on some of the thinnest per-visit economics in dentistry, which shapes everything from scheduling density to treatment planning.
What patients should know
Sonrava’s brands are clearly consumer-facing, so unlike quiet networks such as Heartland, you generally know when you’re in one of its offices, at least under the regional name. What’s less visible is that Western Dental, Brident, DentalWorks, Perfect Teeth, and Vital Smiles are all the same company under the same private equity owner. High-volume, access-focused dentistry is a legitimate and needed model; it also rewards asking for itemized treatment plans and seeking second opinions on major work, as we’d suggest at any office.
Is your office part of Sonrava Health?
Look up any dental office for free to see how it’s classified, and read the full explainer on this page for what a DSO is.
Sources
- New Mountain Capital: Sonrava Health portfolio page
- Sonrava Health: Our Brands
- Business Wire: Sonrava completes Mid-Atlantic Dental Partners acquisition
- Dentistry Today: New Mountain Capital and Western Dental
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
Practice brands under Sonrava Health
Names patients actually see on the door. An office can carry one of these brands and still be supported by the parent organization above.
- Western Dental & OrthodonticsReadHide
the 1903 California chain that Sonrava Health grew out of
- What it is
- A dental and orthodontic chain, and the founding company of the Sonrava group
- Founded
- 1903, in Los Angeles
- Headquarters
- Orange, California
- Size
- About 227 offices, per Western Dental's own locator (August 2026)
- Region
- California and Arizona, per its office locator (August 2026)
Western Dental is the oldest name in this list and the company the rest of Sonrava Health was built around. It serves a large share of Medicaid patients: roughly 70 percent of its California patients are covered by Denti-Cal, the state Medicaid dental program.
Sources
- Brident Dental & OrthodonticsReadHide
Sonrava's Texas-centered brand, with more than 90 offices
- What it is
- A dental and orthodontic office brand in the Sonrava group
- Size
- 94 locations, 92 of them in Texas
- Region
- Texas, with single locations in Colorado and New Mexico
Brident operates alongside Western Dental under the same parent. Its founding year is not published by the company, so we do not state one.
Sources
- DentalWorksReadHide
a multi-state brand Sonrava acquired with Mid-Atlantic Dental Partners in 2022
- What it is
- A general dentistry office brand in the Sonrava group
- Joined Sonrava
- June 2022, through the Mid-Atlantic Dental Partners acquisition
- Prior owner
- Mid-Atlantic Dental Partners
DentalWorks arrived with the 2022 Mid-Atlantic Dental Partners deal, which added 215 offices across 17 states to Sonrava in a single transaction. The company does not publish a current state list or office count for the brand on its own, so we do not list one.
Sources
- PERFECT TEETHReadHide
a Denver-founded Mountain West brand, formerly a public company
- What it is
- A general dentistry office brand in the Sonrava group
- Founded
- 1995, as Birner Dental Management Services, by Fred Birner, in Denver
- Region
- Colorado, New Mexico, and Arizona
- Ownership history
- Publicly traded from 1998, acquired by Mid-Atlantic Dental Partners in 2019, then by Sonrava Health in 2022
PERFECT TEETH has changed hands twice in recent years. It was a listed public company for two decades before being taken over by Mid-Atlantic Dental Partners in 2019, which Sonrava then acquired in 2022.
Sources
- Vital SmilesReadHide
an Alabama pediatric network inside the Sonrava group
- What it is
- A pediatric dental and orthodontic practice network
- Founded
- 2003
- Region
- Alabama
- Support entity
- Brident Dental Services, LLC provides business support and does not own the practices
Vital Smiles shows the layered structure this site tries to make visible: the practices are supported by a Brident entity, which sits under Sonrava Health, which is held by a private equity owner.
Sources
- Affordable CareRead profileHide profile
the company behind Affordable Dentures & Implants
Who is Affordable Care? The company behind Affordable Dentures & Implants
- What it is
- The largest DSO in the U.S. focused exclusively on tooth replacement (dentures, implants, extractions)
- Founded
- 1975
- Headquarters
- Raleigh, North Carolina area
- Size
- Roughly 400+ affiliated practices in about 40 states; more than 7 million patients served over its history
- Ownership
- Harvest Partners and PSP Investments took control in 2021 in a deal reported around $2.7 billion, with prior majority owner Berkshire Partners retaining a minority stake
- Brands
- Affordable Dentures & Implants and DDS Dentures + Implant Solutions
The specialist among the giants
Most big DSOs try to do everything. Affordable Care has spent five decades doing essentially one thing: tooth replacement. Founded in 1975, it grew into the largest denture and implant services network in the country under the brand most patients know as Affordable Dentures & Implants, joined in 2019 by the acquisition of DDS Dentures + Implant Solutions, a 52-practice group across the South.
The model’s signature feature is the on-site lab. Every affiliated practice has its own dental laboratory in the building, which is what makes same-day dentures possible and keeps prices below what most general practices can offer for the same work. Each practice is individually owned and operated by a licensed dentist, with Affordable Care providing the marketing, purchasing, real estate, and lab infrastructure behind it.
Who owns Affordable Care?
The company has passed through a chain of private equity owners. American Capital Equity backed it early, Berkshire Partners acquired a majority in 2015 and roughly tripled the business, and in 2021 Harvest Partners (alongside PSP Investments, a large Canadian pension investor) took control in a deal reported at approximately $2.7 billion, with Berkshire rolling over a minority stake. Analysts noted the price implied a premium multiple, a signal of how eagerly investors were paying for scaled dental platforms at the time.
What patients should know
Affordable Care’s niche focus is a genuine advantage if tooth replacement is what you need: its dentists and labs do this work at volumes few general practices can match, and the pricing is often meaningfully lower. The flip side of a single-specialty, high-volume model is that the business is built around one category of treatment. Full-arch and implant dentistry involves some of the biggest ticket sizes in the profession, so this is exactly the kind of care where an itemized treatment plan and an independent second opinion are worth the extra appointment, whoever the provider is.
Is your office an Affordable Care practice?
The Affordable Dentures & Implants and DDS brands are usually on the sign, but ownership behind local names can still surprise you. Look up any dental office for free to see how it’s classified, and read the full explainer on this page for what a DSO is.
Sources
- Berkshire Partners: Affordable Care acquisition (2015)
- Affordable Care: DDS Dentures + Implant Solutions acquisition
- DentistryIQ: Affordable Care acquired by Harvest Partners
- The Molar Report: Affordable Care company profile
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
Practice brands under Affordable Care
Names patients actually see on the door. An office can carry one of these brands and still be supported by the parent organization above.
- Affordable Dentures & ImplantsReadHide
more than 380 denture and implant practices in 39 states
- What it is
- A practice brand focused on dentures and implants, with an on-site lab at most locations
- Founded
- 1975, as the parent company
- Headquarters
- Morrisville, North Carolina
- Size
- More than 380 affiliated practices
- Region
- 39 states
Affordable Dentures & Implants is the main brand of Affordable Care. The on-site laboratory is the model: it is what allows same-day dentures at many locations. Third-party directories cite higher practice counts than the company does, so we use the company’s own figure.
Sources
- DDS Dentures + Implant SolutionsReadHide
a 2019 acquisition being converted to the Affordable Dentures name
- What it is
- A denture and implant brand acquired by Affordable Care and now being retired
- Acquired
- March 2019, by Affordable Care
- Size at acquisition
- 52 practices across 7 states
- Current status
- Locations are being rebranded to Affordable Dentures & Implants, a conversion running since 2021
DDS Dentures + Implant Solutions is a brand in the middle of disappearing. Affordable Care has been converting its locations to the Affordable Dentures & Implants name since 2021, and DDS is no longer listed as a brand on the parent’s own about page, though some offices still trade under the old name. We do not publish a current location count because no reliable one exists.
Sources
- Dental Care AllianceRead profileHide profile
400+ practices under 150+ local names
Who is Dental Care Alliance? 400+ practices under 150+ local names
- What it is
- One of the largest multi-branded DSOs in the U.S., concentrated in the Eastern half of the country
- Founded
- 1991
- Headquarters
- Sarasota, Florida
- Size
- More than 400 allied practices and 900+ dentists across 23 states
- Ownership
- Majority owned by a group of institutional lenders since a debt-for-equity restructuring that closed in June 2026. Mubadala Investment Company and Harvest Partners previously held control, and Harvest now lists the investment as exited
- Brands
- More than 150 local practice names spanning every dental specialty
The multi-brand model, taken to its logical end
Dental Care Alliance (DCA) is one of the oldest DSOs in the country, founded in Sarasota in 1991, and it has leaned into the “quiet network” playbook harder than almost anyone. Its 400+ allied practices operate under more than 150 different local brand names, and DCA explicitly markets its model as one that preserves each practice’s individual identity. For Florida patients especially, that means a meaningful share of familiar local dental names across the state answer to the same Sarasota parent, and nothing on the sign says so.
Unlike single-specialty platforms, DCA’s network covers the full range: general dentistry, pediatric, orthodontics, endodontics, periodontics, and oral surgery, spread across 23 mostly Eastern states.
Who owns DCA? (This one is genuinely unusual)
DCA’s ownership chain runs through the standard private equity relay: Quad-C Management bought in around 2012, sold to Harvest Partners in 2015, and then in January 2023 came the twist. Mubadala Investment Company, the sovereign wealth fund of Abu Dhabi, acquired Dental Care Alliance in partnership with Harvest Partners, with the two jointly overseeing the company.
Sit with that for a second: hundreds of American dental offices, operating under longtime local family-practice names, are now partly owned by the investment arm of a foreign government. There is nothing improper about it, and sovereign funds invest across American healthcare. But it may be the single best illustration of why WhoIsMyDentist exists. No patient could reasonably be expected to trace that chain from the name on the door.
What patients should know
Day to day, a DCA practice runs like other supported offices: local name and clinical team out front, centralized billing, purchasing, and technology behind the scenes, with a new CEO team installed since late 2023 driving growth. The main thing DCA’s model asks of patients is awareness. If your longtime office joined DCA, the earliest tells are usually new software, new paperwork, and a different name on the billing statement, not anything on the sign.
Is your office a DCA practice?
With 150+ names in the network, there’s no way to guess. Look up any dental office for free to see how it’s classified, and read the full explainer on this page for what a DSO is.
Sources
- Business Wire: Dental Care Alliance closes transaction to strengthen its financial foundation (June 2026)
- Dental Economics: Dental Care Alliance's restructuring signals a new era for DSOs
- Becker's Dental Review: Dental Care Alliance acquired by UAE investment firm
- Harvest Partners: DCA portfolio page
- Quad-C Management: Sale of Dental Care Alliance
Last updated July 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
- Great Expressions Dental CentersRead profileHide profile
one of the oldest DSOs, a single brand across nine states, and nobody will say who owns it
Who owns Great Expressions Dental Centers? Right now, nobody will say
- What it is
- One of the oldest and largest single-brand DSOs in the U.S., with every office under the Great Expressions name
- Founded
- 1982 by Dr. Walter Knysz in metro Detroit, Michigan
- Headquarters
- Southfield, Michigan
- Size
- 206 office locations across nine states as of August 2026 (its own locator), down from roughly 300 offices in 2022 and ten states in 2016
- Ownership
- Passed between private equity firms for most of its history: Audax Group (2008), OMERS Private Equity (2011), then Roark Capital (2016). Control changed hands in an undisclosed August 2023 transaction during a debt restructuring, and no current owner has been publicly named
- Brands
- One. Great Expressions Dental Centers everywhere, with operating entity ADG, LLC licensing the brand to affiliated practices
- CEO
- Dale Hockel, promoted from chief operating officer in May 2025
Four decades, one name
Great Expressions is one of the oldest support organizations in dentistry. Dr. Walter Knysz founded it in metro Detroit in 1982, and unlike almost every other large DSO it has always operated as a single brand: the name on the sign is the same in every state. It grew from 98 practices at its first private equity sale in 2008 to 269 practices in ten states by 2016, with the support center consolidated in Southfield, Michigan.
A private equity relay race
The founder sold majority control to Boston’s Audax Group in 2008. Audax passed it to OMERS Private Equity, the investment arm of a Canadian pension plan, in 2011. OMERS sold it to Atlanta’s Roark Capital in September 2016. Three owners in eight years is not unusual in corporate dentistry, and through each handoff the offices, the dentists, and the brand stayed put while the profits changed address.
The handoff nobody announced
Here is where the trail goes dark. The loan behind Roark’s 2016 buyout was due to mature in September 2023, and SEC filings by one of the lenders show it trading well below face value as that date approached. On August 1, 2023, control of the company changed hands in a transaction no one has ever announced: PitchBook records the company as acquired with no buyer named, Roark quietly moved Great Expressions to the “previous investments” page of its website, and the loan was restructured and extended to late 2026 with part of the interest paid in IOUs rather than cash. No press release exists from any party.
That makes Great Expressions the largest dental chain in America whose ultimate owner is, as a matter of public record, unknown. The brand and the support entity (ADG, LLC) are documented. Who stands behind them since 2023 is not. We classify what can be verified and say so plainly when the rest cannot be.
A shrinking map
The footprint tells its own story. Roughly 300 offices in ten states under Roark became about 300 in nine states by 2022 (Virginia was exited), roughly 246 by early 2023, and 206 physical locations on its own locator as of August 2026. None of those closures were announced; the shrinkage only shows up in the totals. The same stretch brought a February 2023 cyberattack that exposed data on about 1.9 million patients, a $2.7 million class-action settlement, and four CEOs since 2016, most recently Dale Hockel, promoted from chief operating officer in May 2025.
What patients should know
Day to day, Great Expressions offices work like most DSO-supported practices: licensed dentists own the clinical practice on paper, with the support organization providing management under long-term agreements. The single brand actually makes it one of the easier chains to recognize. The reason to care about the ownership question is incentives: a company being passed between financial owners under debt pressure is optimizing for different things than one with a stable, accountable owner. As anywhere, ask for an itemized treatment plan and seek a second opinion on major work.
Is your office part of Great Expressions?
If the sign says Great Expressions, it is. Our map also shows the classification for every office we track: look up any dental office for free and read the full explainer on this page for how the DSO model works.
Sources
- Great Expressions: About Us
- Roark Capital press release: Great Expressions acquisition (September 2016)
- Audax Group: acquisition of Great Expressions Dental Centers (2008)
- Roark Capital: Previous Investments (Great Expressions listed as exited)
- PitchBook: Great Expressions Dental Centers company profile
- SEC 10-Q, Bain Capital Specialty Finance (Q3 2023): GEDC loan restructuring
- Becker's Dental Review: Great Expressions Dental Centers, 5 fast facts (2022)
Last updated August 2026. Practice counts and ownership details change as DSOs acquire and divest; verify current figures before relying on them.
- Sage Dental
a regional DSO with offices across Florida, Georgia, and Tennessee
Practice brands under Sage Dental
Names patients actually see on the door. An office can carry one of these brands and still be supported by the parent organization above.
- Monticciolo Family & Sedation DentistryReadHide
a Tampa Bay family and sedation dentistry group acquired by Sage Dental in August 2026
- What it is
- A Tampa Bay area family and sedation dentistry group
- Led by
- Dr. Vincent Monticciolo
- Region
- Pasco, Hillsborough, Pinellas, and Manatee/Sarasota counties, Florida
- Acquired
- August 2026, by Sage Dental
- Scope of the deal
- Nine practices, announced as being rebranded under the Sage Dental name
Monticciolo Family and Sedation Dentistry built its reputation as an independent, dentist-led group across the Tampa Bay region. In August 2026 Sage Dental announced it had acquired nine of the group’s practices, and said those locations would be rebranded under the Sage Dental name.
That is why offices you may still know by the Monticciolo name now classify as corporate-affiliated on this site. The dentists and the building do not change on the day a deal closes, but the support organization behind the practice does, and that is what the classification reflects.
Sources
- Narducci Dental GroupReadHide
a 13-practice Florida group Sage Dental acquired in 2023
- What it is
- A multi-location Florida dental group acquired by Sage Dental
- Founder
- Dr. Nicholas Narducci, DMD
- Acquired
- October 2023, by Sage Dental
- Size at acquisition
- 13 practices
- Region
- Northern and central Florida, including eight practices around Jacksonville
The Narducci deal took Sage Dental to 119 practices and gave it its first significant Jacksonville presence. Unlike some later Sage acquisitions, the announcement did not say whether the Narducci name would be retired, so we do not claim either way.
Sources
- Ideal DentalProfile coming soon
a fast-growing Texas-based DSO operating as Ideal Dental
- Dental DepotProfile coming soon
a family-owned dental chain centered in Oklahoma and the Southwest
- Kool SmilesProfile coming soon
a family and pediatric dental brand
- Coast DentalProfile coming soon
a Tampa-based DSO with offices across Florida
- Today's Dental NetworkProfile coming soon
a dentist-led, multi-specialty DSO in west central Florida
- Advantage Dental+Profile coming soon
the care-delivery dental group of DentaQuest and Sun Life
Last updated July 2026. Practice counts and ownership details change frequently as DSOs acquire and divest; figures reflect the most recent public reporting at the time of writing. Classifications are based on available public information and reviewed submissions, and are not legal ownership determinations. They may be updated as new data or corrections become available.