摘要：

目的： 探讨影响上切牙区单颗埋伏多生牙手术时间的因素，为评估临床手术难度提供参考。方法： 收集2023年1月至2023年12月于河北医科大学口腔医院行上切牙区单颗埋伏多生牙拔除术的154例患者的临床资料。所有患者术前均行锥形束CT（cone beam CT，CBCT）检查，手术在全身麻醉下进行。记录患者年龄、性别，多生牙形态、方向、位置、牙根发育情况，手术医生工作年限及手术时间。采用多元线性回归分析影响手术时间的独立因素。结果： 患者年龄4~21岁，平均（9.03±3.11）岁；手术时间5~70 min，平均（26.00±12.15） min。多因素分析显示，患者年龄（B=1.175，P<0.05）、多生牙垂直向位置（B=-5.417，P<0.05）、多生牙方向（B=2.236，P<0.05）、牙根发育情况（B=-2.266，P<0.05）、手术医生工作年限（B=-2.849，P<0.05）与手术时间有关，并建立回归方程：T=24.667+1.175A-5.417B+2.236C-2.266D-2.849E（T：手术时间；A：年龄；B：垂直向位置；C：方向；D：牙根发育；E：手术医生工作年限）。结论： 上切牙区单颗埋伏多生牙手术时间与患者年龄、多生牙垂直向位置、多生牙方向、牙根发育情况及手术医生工作年限相关。本研究建立的回归方程可为术前难度评估和医患沟通提供量化参考。

关键词: 上切牙区, 埋伏多生牙, 手术时间, 多因素分析

Abstract:

Objective: To investigate the factors influencing the operative time for the removal of a single impacted supernumerary tooth in the maxillary incisor region, and to provide a reference for pre-operative difficulty assessment. Methods: Clinical data were collected from 154 patients who underwent extraction of a single impacted supernumerary tooth in the maxillary incisor region at the Hospital of Stomatology, Hebei Medical University, from January to December 2023. All patients received a pre-operative cone beam CT (CBCT) examination, and surgeries were performed under general anesthesia. Patient age, sex, tooth morphology, orientation, position, root development status, surgeon's years of experience, and operative time were recorded. Multiple linear regression analysis was used to identify independent factors influencing operative time. Results: Patients' ages ranged from 4 to 21 years, with a mean of (9.03±3.11) years. Operative time ranged from 5 to 70 minutes, with a mean of (26.00±12.15) minutes. Multivariate analysis showed that patient age (B=1.175, P<0.05), vertical position (B=-5.417, P<0.05), orientation (B=2.236, P<0.05), root development of the supernumerary tooth (B=-2.266, P<0.05), and surgeon's years of experience (B=-2.849, P<0.05) were significantly associated with operative time. A regression equation was established: T=24.667+1.175A-5.417B+2.236C-2.266D-2.849E (T: operative time; A: age; B: vertical position; C: orientation; D: root development; E: surgeon's experience). Conclusion: The operative time for the removal of a single impacted supernumerary tooth in the maxillary incisor region is closely related to patient age, the tooth's vertical position, orientation, root development, and the surgeon's experience. The regression equation established in this study may serve as a quantitative reference for pre-operative difficulty assessment and clinician-patient communication.

Key words: maxillary incisor region, impacted supernumerary tooth, operative time, multivariate analysis

中图分类号: 

• 上切牙区

• 埋伏多生牙

• 手术时间

• 多因素分析

• maxillary incisor region

• impacted supernumerary tooth

• operative time

• multivariate analysis