Singh Mahender, Batra Ranmeet, Das Debdutta, Verma Shweta, Goel Munish
Department of Oral & Maxillofacial Surgery, Himachal Institute of Dental Sciences, Paonta Sahib, Himachal Pradesh, India.
Department of Conservative Dentistry & Endodontics, Himachal Dental College, Sundernagar, Himachal Pradesh, India.
J Oral Biol Craniofac Res. 2017 May-Aug;7(2):141-146. doi: 10.1016/j.jobcr.2017.01.001. Epub 2017 Jan 28.
Mandibular first molars are the major standpoint for occlusion, and also have a wide peri-cemental area. Under specific conditions, hemisection of the tooth is indicated after an endodontic treatment. The following case report presents the hemisection of grossly carious, endodontically treated mandibular first molar, in a 23 year old female, followed by replacement of the mesial root with a single piece immediate loaded BCS (Bi-Cortical Screw) implant and a single unit porcelain fused to metal crown for the prosthetic rehabilitation of the remaining tooth structure, with the BCS implant providing strength and support to the weakened tooth structure. This procedure is an innovation in prosthetic rehabilitation of tooth structure left after hemisection and enhances the predictability of success rate of hemisection.
下颌第一磨牙是咬合的主要支撑点,并且其牙周膜面积较大。在特定情况下,根管治疗后需对患牙进行半切术。以下病例报告介绍了一位23岁女性严重龋坏且已接受根管治疗的下颌第一磨牙的半切术,随后用单块即刻负重的双皮质螺钉(BCS)种植体替代近中根,并使用单单位烤瓷熔附金属冠对剩余牙体结构进行修复,BCS种植体为薄弱的牙体结构提供强度和支撑。该手术是对半切术后剩余牙体结构进行修复的一项创新,提高了半切术成功率的可预测性。