Welcome to Mid-Maine Oral Surgery. Oral and Maxillofacial Surgeon, Gregory V. Sarka, DDS, MD practices a broad scope of oral and maxillofacial surgical procedures, including routine dental extractions, wisdom tooth removal, dental implant placement, bone grafting, exposure of unerupted teeth, pre-prosthetic surgery, exposure of impacted teeth, Teeth-in-an-Hour, and oral pathology.