Implant Supported Dental Prostheses In 1948, two American Dentists, Gershoff & Goldberg, surgically placed a subperiosteal implant created by: Dr. Gustav Dahl of Sweden.…
1. ALLERGIC RHINITIS Definition : IgE mediated hypersensitivity of the mucous membrane of the nose upon exposure to antigenic substance. Incidence : common, 10-20% of population.…