Study on the correlation between clinical characteristics and secondary effects of mesiodens during the replacement period

doi:10.19438/j.cjoms.2026.02.004

Abstract

Abstract: PURPOSE: To analyze the characteristics of single mesiodens during the replacement period and their secondary effects on adjacent tissues using CBCT, so as to provide a reference for the formulation of clinical diagnosis and treatment plans. METHODS: A total of 305 patients with mesiodens in the mixed dentition period (305 mesiodens) who visited the Hospital of Stomatology, Hebei Medical University from January 2023 to December 2024 were included retrospectively. The coronal, sagittal and horizontal positions as well as the morphology of mesiodens were evaluated by CBCT, and the correlation between mesiodens and secondary effects such as permanent tooth displacement, impaction and adjacent tooth space was analyzed. RESULTS: The average age of the patients was (7.97±1.69) years, with a male-to-female ratio of 2.96∶1. A total of 51.48% (157/305) of mesiodens caused secondary effects on adjacent tissues. Correlation analysis showed that whether mesiodens caused secondary effects was not related to the patient's gender, age or horizontal position(P>0.05), but was significantly related to the coronal position, sagittal position, and morphology (P<0.05). There was no significant difference in the specific types of secondary effects among mesiodens with different positions and morphologies (P>0.05). CONCLUSIONS: The coronal and sagittal positions and shapes of mesiodens during the replacement period are related to secondary effects. Early determination of the position of mesiodens through CBCT is of great significance for determining treatment plans.

Key words: Dental replacement period, Mesiodens, CBCT, Clinical features, Secondary effects

CLC Number:

R782.1

Ren Qun, Zhang Kejian, Li Xiang, Liu Wenjing, Zhang Tai, Liu Xiaolin. Study on the correlation between clinical characteristics and secondary effects of mesiodens during the replacement period[J]. China Journal of Oral and Maxillofacial Surgery, 2026, 24(2): 122-127.

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