Application of digital positioning guide plates for the surgical extraction of multiple impacted supernumerary teeth:A case report and review of literature  

作　　者：Zhi Wang Shu-Yi Zhao Wu-Shu He Fan Yu Shao-Jie Shi Xue-Ling Xia Xin-Xiao Luo Yu-Hong Xiao 

机构地区：[1]Department of Oral and Maxillofacial Surgery,920th Hospital of Joint Logistics Support Force,PLA,Teaching Hospital of Kunming Medical University,Kunming 650032,Yunnan Province,China

出　　处：《World Journal of Clinical Cases》2022年第27期9886-9896,共11页世界临床病例杂志

基　　金：Supported by National Natural Science Foundation of China,No.81970972;Applied Basic Research Projects of the 920th Hospital of Joint Logistics Support Force,No.2020YGB06。

摘　　要：BACKGROUND An extra tooth in the normal tooth sequence in any region of the dental arch is regarded as a supernumerary tooth(SNT).Due to the large variation in location and morphology,the extraction of impacted SNTs is an extensive and complex procedure with high risks of several complications.This report presents a rare case of seven impacted SNTs in the bilateral upper and lower arch that were successfully extracted with the use of digital positioning guide plates.CASE SUMMARY In January 2022,a 21-year-old male was referred to our department with a chief complaint of pain in relation to tooth#36.Clinical examination showed a deep carious lesion with pulpal involvement in tooth#36 and lingual swelling of the bilateral mandibular posterior area.Radiographic examination revealed seven deeply impacted SNTs in the bilateral posterior area and bilateral impacted mandibular third molars.Based on these findings,the patient was diagnosed with bilateral,multiple impacted SNTs and tooth#36 chronic pulpitis.A root canal treatment and an all-ceramic crown restoration for tooth#36 were performed.An individualized digital positioning guide plate was designed by computer-aided design/computer-aided manufacturing technology and cone-beam computed tomography for extraction of the impacted SNTs.During the operation,the digital positioning guide plate allowed rapid positioning and exposure of the SNTs while avoiding adjacent important anatomical structures.At 3-month follow-up,regeneration of bone and soft tissues was visible.CONCLUSION The application of digital positioning guide plates is useful for the individualized and minimalized extraction of impacted supernumerary teeth.

关 键 词：Supernumerary teeth Computer aided design/computer aided manufacturing DIGITAL Surgical guide Minimal invasion Case report 

分 类 号：R782.11[医药卫生—口腔医学]