Overjet CEO Wardah Inam Quit Her Job With No Startup Idea, Then Built a $550M Dental AI Company

October 19, 2026

TL;DR: Overjet is a dental AI company that reads dental x-rays and measures disease, so dentists and insurers can make decisions from objective data instead of opinion. It was founded in 2018 by Wardah Inam, who is still CEO. She started with no product and no co-founder, funded the first year with her own savings, a check from her parents and a check from a dentist, and then won over the insurance industry before dentists. As she shared on the show, Overjet signed Guardian and Delta Dental before its seed round, and later raised money in four rounds. Its Series C in March 2024 was $53.2 million at a $550 million valuation, and its total funding was reported at roughly $133 million at that point. Inam told the full story on The Product Market Fit Show.

A note on timing. The episode aired in 2024 (Season 3), so every number Inam gives is as of the interview. Anything marked "as of" a later date comes from a web search I ran in October 2026 and is attributed to its source.

What does Overjet do?

Overjet sells artificial intelligence that analyzes dental x-rays. Its software finds conditions such as cavities and bone loss, and it measures them rather than just flagging them. It sells to two kinds of customers: dental practices, and the insurance companies that pay for dental care.

The measuring part is the key idea. Most dental software records what treatment was done, not what disease was present. Inam made that point on the show.

"Treatments are recorded, but disease is not recorded." — Wardah Inam, Overjet

The disease lives in x-rays and clinician notes, where nobody can query it. Overjet's first move was to pull it out and turn it into data. And instead of saying "there is a cavity," the software says how big it is.

"Rather than saying, hey, there’s a cavity, we started saying, hey, here’s a cavity which is 25% of your crown area of the tooth." — Wardah Inam, Overjet

Key stat: Inam's example on the show was a cavity covering 25% of the crown area of a tooth. A number like that tells a dentist, or a claims reviewer, what treatment the tooth needs, and it lets two clinicians who disagree point at the same measurement.

As of the March 2024 funding coverage, Overjet described itself as serving thousands of dentists in private practices and large dental support organizations in North America, with insurer partners covering more than 120 million members (Pulse 2.0, March 2024). Those are company claims as reported, not figures confirmed on the show.

In December 2025, Overjet announced it would acquire DentalBee, a voice-powered clinical documentation platform, to extend its product from diagnosis into charting and notes. Terms were not disclosed (Overjet announcement and Becker's Dental Review, December 2025).

Who founded Overjet?

Overjet was founded in 2018 by Wardah Inam, who is its CEO (Becker's Dental Review and the Boston Globe both identify her as co-founder and CEO). Her background is not dentistry at all. As she told Pablo, she did a PhD in clean energy, then concluded the problem there was more about policy than technology, and moved toward healthcare.

She did a postdoctoral fellowship on biomedical sensing with machine learning, then joined a startup building faster, more quantitative MRI technology. Its founder had already built a successful company, and she joined because she believed in the mission. She also said she had been building and commercializing things all through her PhD, some of which worked and some of which did not.

The dentist visit that started everything was ordinary. She moved to a new neighborhood, changed dentists, and received a treatment plan very different from the one she had before.

"Then I shared my x-rays with other dentists as well and I got different opinions." — Wardah Inam, Overjet

She did not accept that as normal.

"There has to be one truth. What is it?" — Wardah Inam, Overjet

What began as reading up online turned into more than a hobby. She said she reached the point where she was spending more time on it than on her day job, so she quit.

Her first hires and partners came from her own circle. She found a dentist co-founder, Alex, who was doing a residency at Harvard. Harvard would not give him a leave of absence, so he helped part-time with the dental knowledge. She hired Deepak, a former colleague from her MRI startup who had previously worked at Amazon.

How much has Overjet raised?

The first year was funded without outside investors. As Inam shared on the show, she used her savings from a year of work, a check her parents had given her for a house down payment, and a second check from the dentist who had given her the first data. That lasted about a year.

Later rounds, as of October 2026 and verified through web search of the sources named:

Seed, June 2020: about $7.85 million (Business Wire, June 2020). On the show, Pablo called the seed "almost $8 million," and the first institutional check came from E14 Fund, MIT's venture fund.
Series A, August 2021: $27 million (Overjet's announcement, August 2021).
Series B, December 2021: $42.5 million at a $425 million valuation, led by General Catalyst and Insight Partners with Crosslink Capital and E14 Fund participating (Overjet's release as carried by BioSpace and TechCrunch, December 2021). Total financing was reported at just under $80 million at that point.
Series C, March 2024: $53.2 million at a $550 million valuation, led by March Capital with General Catalyst, Insight Partners, E14 Fund, Crosslink Capital, Spring Rock Capital, Liquid 2 Ventures, Harmonic Growth Partners and the American Dental Association (Built In Boston and Pulse 2.0, March 2024). Coverage put total funding at roughly $133 million. One separate profile cited a higher total, so treat the cumulative figure as approximate.

Key stat: the Series C valuation was $550 million as of March 2024, which is where the episode title's figure comes from. The host also said on the show that Overjet had raised over $100 million by then.

As of October 2026, a web search found no new funding round after the March 2024 Series C. I could not verify a current valuation, so I am not stating one.

How a bad dental appointment became a company

Inam did not start with a startup idea. She started with a thesis about where dentistry was heading. As she explained it, private equity money had been flowing into dental practices and the industry was consolidating, with groups that could measure financial performance but had no way to measure clinical quality. If they could not measure it, they could not improve it.

So she quit her job and began shadowing dentists, with no company name and no formation. The access came from persistence and luck. The first dentist she connected with was in her own building. The second came from a chat during an Uber Pool ride, where a stranger heard what she was exploring and introduced her to a dentist. That dentist gave Overjet its first tranche of data.

Why would busy dentists share patient data with a stranger? She said they believed in the problem, and the first one actually thanked her for working on it.

Never miss a founder's PMF story

Subscribe to The PMF Show

Once the data arrived, the analysis produced a surprise. Most people assume dentists overdiagnose to make more money. Her data said the opposite.

"There is significant amount more underdiagnosis in dentistry and treatments that are not happening than overdiagnosis." — Wardah Inam, Overjet

She said the team reached that conclusion by comparing disease prevalence rates from the CDC with how much was actually being diagnosed. She also noticed that dentists were making diagnoses in rooms with changing lighting and old monitors, unlike radiologists, who read images in dark rooms on proper screens. Her conclusion was that it was a tools problem, not a motivation problem.

Fundraising, meanwhile, was hard. She told Pablo she had no network of investors at the start.

"Now, I know a lot of investors. At that time, I knew nobody." — Wardah Inam, Overjet

Investors worried about inference costs eating into software margins, early healthcare AI companies had struggled to scale, and the traction bar for a pre-seed company felt too high. She also said one angel investor with a pre-seed fund told her he would fund the company if she brought in a male CEO, citing a statistic that only 2% of female founders get funded. She said she does not think the investor acted out of bad intent, but it was a real obstacle then.

Why Overjet sold to insurers before dentists

Selling to dentists first would have been the obvious path. Overjet did not take it, and the reason was regulatory. As Inam shared on the show, dentists needed an FDA-cleared product, which takes time, so the company began the FDA process while it looked for customers who could pay sooner.

Those customers were insurance companies. They were reviewing claims manually with teams of dentists, so there was a clear job to automate: checking that a claim is complete, that the right x-ray is attached, and eventually whether the treatment is medically necessary. Some investors told her insurance was so slow that the company would die before closing a contract. She said her naivety helped.

By the time of the seed round, Overjet had signed Guardian and Delta Dental, two large insurers. Those were pilots first, and then the demand spread.

"We basically won every RFP that we participated in." — Wardah Inam, Overjet

Key stat: as she shared on the show, about one in three demos got a visible "wow" reaction, and after deployment customers mostly said the results were better than they had imagined. Revenue, she noted, came later than the proof.

She said that was when she felt true product-market fit: after the two pilots, inbound interest arrived from other insurers running RFPs. Her description of the value to insurers was consistency. When two reviewers look at the same quantified data, they stop arguing about what the x-ray shows, training gets lighter, and people spend time on real decisions instead of easy administrative ones.

Key lessons from Wardah's playbook

1. Start with a thesis and go see the problem in person. Inam had no product. She shadowed dentists until she understood the field, and she let the data tell her what was true, including the finding that underdiagnosis beats overdiagnosis. 2. Ask everyone for access. Her first data came from a dentist in her building and a stranger on a ride. She told anyone who would listen what she was working on and the problem she was trying to solve. 3. Quantify what others only describe. Overjet's edge was measuring disease, not just labelling it. That turned subjective opinion into something two people could agree on. 4. Sell to the customer who can say yes first. FDA clearance blocked dentists, so she went to insurers, who had an urgent, expensive manual process. Early pilots then funded and de-risked the harder path. 5. Treat speed as a strength. Her advice to her 2018 self was blunt.

"For me, what I learned over time was that speed is probably the most important thing in a startup." — Wardah Inam, Overjet

She said she used to think of her impatience as a flaw, and she now wants the whole company to share it.

For more founder stories on selling into regulated markets and finding early customers, see product-market fit for healthtech, how to get your first enterprise customer, fundraising as a solo founder, and Infinitus's $51.5M Series C in healthcare voice AI.

Listen to the full interview: She quit her job without a startup idea, then built a $550M startup from a bad dentist appointment.

FAQ: Overjet

Q: What is Overjet? A: Overjet is a dental AI company that analyzes x-rays to find and measure conditions such as cavities and bone loss. It sells to dental practices and to dental insurers. In December 2025 it announced the acquisition of DentalBee, a voice-powered clinical documentation platform.

Q: Who is the CEO of Overjet? A: Wardah Inam is the co-founder and CEO. She founded Overjet in 2018 after a PhD in clean energy, a postdoctoral fellowship in biomedical sensing and a stint at an MRI startup.

Q: How much funding has Overjet raised? A: Overjet's Series C in March 2024 was $53.2 million at a $550 million valuation, bringing reported total funding to roughly $133 million. Earlier rounds were a seed of about $7.85 million (2020), a $27 million Series A (2021) and a $42.5 million Series B (2021). As of October 2026, no later round was found.

Q: Who invested in Overjet? A: Publicly named investors include E14 Fund, General Catalyst, Insight Partners, Crosslink Capital, March Capital, Spring Rock Capital, Liquid 2 Ventures, Harmonic Growth Partners and the American Dental Association.

Q: Who were Overjet's first big customers? A: As Inam shared on the show, Overjet signed insurers Guardian and Delta Dental before its seed round, then won every RFP it entered afterward. Dentists came later, because the company needed FDA clearance to sell to them.

Sources: Listen to the Full Founder Story

Wardah Inam, Founder and CEO of Overjet — quit her job without a startup idea, taught herself dentistry, and built a dental AI company by selling to insurers first.