BEWARE of this website that uses Dr Nelson Henry as their spokesman. https://sites.google.com/site/certifieddentistsorg/ It's all just a big scam. Dr Henry lost his dental license in Maine because of multiple complaints, unsanitary conditions, and general incompetence. You can read the statement from the Maine Board of Dental Examiners at this link (see Exhibit B): https://www.maine.gov/dental/consumer-information/disciplinary-actions.html There's also an interesting summary of Nelson's infractions in the minutes of the Utah Dentist & Dental Hygienist Licensing Board meeting where Henry tried to get a Utah dental license. They recommended he take a psychological exam (among other requirements) before being allowed to come back before the board. You can find that information here (page 18): https://www.utah.gov/pmn/files/204059.pdf He's now the spokesman for a Mexican dental scam called BOARD CERTIFIED MEXICO DENTAL ASSOCIATION that has no affiliation with any academic, government, or authoritative organization. It's just a referral site to take referral fees when they send a client to their preferred dentist. The person who supposedly runs it fled from Mexico and has an arrest order on file. See this story about David Robert Mandich, the man behind the website. www.surprisingdentalvacation.com Lots of contrived blog posts refer folks to this “Board Certified” website to get it ranked high in the google searches. It's all a big scam. Avoid the recommendations.