Analysis of 12 Cases of External Cervical Resorption after Trauma

doi:10.13701/j.cnki.kqyxyj.2024.03.006

Abstract

Abstract: Objective: To analyze the clinical characteristics of cervical external resorption after trauma and to explore its treatment strategy. Methods: Patients with external cervical resorption after trauma who came to Changsha Central Hospital affiliated to the University of South China from February 2020 to February 2023 were collected. The general information, location of the affected tooth, degree of resorption, main symptoms at first visit, treatment measures taken, tooth retention, and recovery after treatment were collected, analyzed, and discussed. Results: A total of 12 cases occurred external cervical resorption were collected, and 21 affected teeth were found, including 9 maxillary central incisor teeth, 3 maxillary lateral incisor teeth, 7 mandibular central incisor teeth, and 2 mandibular lateral incisor teeth. The degree of resorption in grade Ⅰ was 0, in grade Ⅱ was 7, in grade Ⅲ was 5, and in grade Ⅳ was 9. According to the conditions of affected teeth, root canal therapy, subgingival scaling, and periodontal therapy were performed. During the follow-up period, 11 teeth were extracted due to severe resorption in 8 cases. Among the other 4 cases, the original apical fistulas disappeared in 2 of the 4 affected teeth after root canal treatment combined with subgingival scaling and local filling of defects, and no expansion of cervical radiations was observed; cervical radiations disappeared in 4 affected teeth after root canal treatment in 1 case without any clinical positive symptoms; cervical radiations in 2 affected teeth did not expand after root canal treatment combined with local filling in 1 case. No clinical positive symptoms occurred. Conclusion: Early detection of external cervical resorption after trauma is difficult, and the pathogenic mechanism is still unclear, but regular post-traumatic follow-up is helpful to timely detection, and appropriate treatment can effectively stop the further destruction of teeth caused by external cervical absorption after trauma and avoid tooth loss.

Key words: tooth trauma, external cervical resorption, loose teeth, root canal treatment

HE Zuwu, TIAN Tian. Analysis of 12 Cases of External Cervical Resorption after Trauma[J]. Journal of Oral Science Research, 2024, 40(3): 221-226.

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