Welcome to Periodontology, Inc. Periodontist H. William Stehle, DDS, MS Columbus, OH, practices a full scope of periodontics with expertise ranging from dental implants to cosmetic periodontal surgery, gum grafting and crown lengthening. Dr. Stehle can also treat periodontal (gum) disease. Even a subtle change in your smile helps you to project an image of self-confidence and high personal esteem. When you feel good about yourself, it shows in your appearance.