Root amputation and tooth hemisection.
D000671:Amputation, Surgical; D004708:Endodontics; D006801:Humans; D008963:Molar / Q000601:surgery*; D009909:Oral Health; D010510:Periodontal Diseases / Q000601:surgery*; D010515:Periodontal Prosthesis; D014092:Tooth Root / Q000601:surgery*; D014099:Toothbrushing