Steinhilber is a specialized practice that focuses on OMS, Periodontics and Implants. STEINHILBER OMS in Lakeville, New York, is a specialized practice that is limited to Oral & Maxillofacial Surgery, Periodontics, and Implants. Let us explain - Dr. Steinhilber is both a periodontist and an oral and maxillofacial surgeon. Periodontics specializes in the prevention, diagnosis, and treatment of periodontal diseases. Periodontal disease is the major cause for about 70% of adult tooth loss, and is better known as "gum disease."