Paul Sclodnick, a Maple, Ont.,-based dentist who has worked in the area for at least 25 years, was charged this week following an investigation by York Regional Police.
A woman who used to work for him is an alleged victim.
She told CBC News that she was hired to work in Sclodnick's office last fall.
She said that Sclodnick began to comment on her appearance shortly after she began working at the office.
"He asked me: 'Do you shave there? Because I like them shaved,'" the woman said in an interview.
She said things escalated.
The woman said that the dentist, at one point, came up from behind her and used his hand to pull the elastic waist of her scrub pants out and put his hand down the back of her pants. He told her he needed to check the colour of her underwear.
She told CBC News that she repeatedly told the dentist to stop his behaviour, but after several months she was fired from her job without cause.
Sclodnick did not return messages left by CBC News at his office and on his cellphone.
Police say there may be more alleged victims. They want anyone with information to contact investigators.
The Royal College of Dental Surgeons of Ontario told CBC News that it has not heard from any alleged victims about incidents involving Sclodnick.
However, the college did receive information that Sclodnick may have behaved improperly.
The college is investigating as many as nine alleged incidents involving the dentist.