Dr. Mahtesyan is a general dentist, but his practice is focused on Oral Surgery and Dental Implants. He has taken numerous continuous education courses dedicated to dental implants and oral surgery. Most noteworthy is the All-on-4 training he received in Lisbon, Portugal, taught bytheinventor oftheAll-on-4 or Teeth in a Day procedure,Paulo Malo. Since then, Dr Mahtesyan has treated hundreds of patients using Dr Paulo Malos All-on-4 protocol. He is one ofthevery fewdentistsperformingthe All-on-4 procedure singlehanded from start to finish, including both surgical and prosthetic portions of the procedure.