Vertical direction impaction of kissing molars:A case report  

作　　者：Cai Wen Rong Jiang Zhi-Qiang Zhang Bo Lei Yuan-Zheng Yan Ying-Quan Zhong Long Tang 

机构地区：[1]Department of Oral Implantology,The Affiliated Stomatological Hospital of Southwest Medical University,Luzhou 646000,Sichuan Province,China [2]Department of VIP Dental Service,The Affiliated Stomatological Hospital of Southwest Medical University,Luzhou 646000,Sichuan Province,China [3]Luzhou Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration,The Affiliated Stomatological Hospital of Southwest Medical University,Luzhou 646000,Sichuan Province,China [4]Department of Dentistry,People's Hospital of Aba Tibetan and Qiang Autonomous Prefecture,Ma'erkang 624000,Sichuan Province,China [5]Department of Radiology,People's Hospital of Aba Tibetan and Qiang Autonomous Prefecture,Ma'erkang 624000,Sichuan Province,China

出　　处：《World Journal of Clinical Cases》2022年第12期3959-3965,共7页世界临床病例杂志

基　　金：Supported by Strategic Cooperation Project between Sichuan University and Luzhou Municipal Government,No. 2018CDLZ-14;Aba Tibetan and Qiang Autonomous Prefecture Science and Technology Bureau,No. 21YYJSYJ0052

摘　　要：BACKGROUND Kissing molars(KMs)are a scarcely reported form of molar impaction in which the occlusal surfaces contact each other within a single dental follicle and the roots point in opposite directions.The direction of KMs impaction is generally tilted.KMs with vertical direction impaction have not been reported in the literature.CASE SUMMARY A 25-year-old female visited a dentist for right maxillary wisdom teeth extraction and was diagnosed with two vertically impacted KMs in the left mandible on panoramic radiography.After cone-beam computed tomography examination confirmed no secondary complication,the patient chose to undergo observation and regular follow-up.A literature review of KMs revealed that vertical impacted KMs are rare;high-quality evidence regarding their prevalence is still lacking.At present,the causality of KMs is controversial.In this study,we have tried to provide a detailed definition of KMs to allow an accurate evaluation of their prevalence and classification based on their impaction direction which may be related to their pathogenesis.The treatment plan of KMs depends on the condition and location of the affected teeth and associated complications;they may be either directly extracted or treated using a multidisciplinary approach including maxillofacial surgeons and orthodontists.CONCLUSION KMs are a rare clinical condition of impacted teeth with unclear pathogenesis.Vertically impacted KMs were seldom reported.Reasonable definition and classification of KMs can help in the understanding of their causes and prevalence.

关 键 词：Kissing molars Impacted tooth PATHOGENESIS PREVALENCE Classification Case report 

分 类 号：R782.11[医药卫生—口腔医学]