Dr. Leong Has Been Performing Implant Surgeries Since 1975. He Has Been Teaching Implant Dentistry Since 1982. All Phases Of Dentistry Done By One Dentist. Gum Treatments, White Filings, Crowns And Bridges, Cosmetic Dentistry, Root Canal Treatments, Oral Surgery, Full And Partial Dentures, TMJ, Exams And Cleanings.