
The destruction of the supporting tissues around teeth is primarily due to bacterial accumulation from improper cleaning. Most people will have some form of periodontal disease during their lifetime. The majority can be treated by their family dentist. However, when the disease progresses so that pockets are formed and bone loss occurs, then more advanced treatment by a periodontist is recommended.
A periodontist in Ontario must successfully complete a general dental degree and a two- or three-year postgraduate training in periodontics at an accredited facility (or its equivalent) and pass a specialty examination before being licensed. Periodontists are trained in many surgical procedures, such as bone grafting, sinus lifting, and implant placement, as well as the surgical and non-surgical treatment of periodontal diseases and the diagnosis, treatment planning and maintenance of the dental implant and its supporting structures.
Information is per the Ontario Dental Association.