title: Violation of surgical principles in periodontal flap surgery--its consequences.
mesh_terms: D006801:Humans; D008722:Methods; D009061:Mouth Mucosa / Q000637:transplantation; D010159:Palate / Q000601:surgery; D010510:Periodontal Diseases / Q000601:surgery*; D011183:Postoperative Complications / Q000517:prevention & control; D013524:Surgical Flaps; D013536:Suture Techniques