影响颈部缺损前磨牙全冠修复预后因素的Cox回归分析
台州恩泽医疗中心 (集团), 路桥医院口腔科, 浙江台州 318050
| 摘 要： | 目的：通过对颈部缺损前磨牙全冠修复后的生存情况进行分析，探讨影响预后的相关因素。方法：回顾分析2012年1月至2014年12月波及牙髓的颈部缺损的采用全冠修复的前磨牙432例，根据修复方法不同分为树脂修复组、桩核修复组，随访5年，采用Cox回归进行生存分析。结果：不同修复方法（RR=0.567，95% CI: 0.355~0.907）、有无对颌牙（RR=0.033，95% CI: 0.016~0.840）、是否为义齿修复基牙（RR=0.494，95% CI: 0.308~0.793）、有无牙本质肩领（RR=11.465，95% CI: 6.653~19.759）及缺损面数（RR=0.386，95% CI: 0.187~0.798）是影响颈部缺损前磨牙全冠修复预后的独立危险因素。进一步亚组分析可见，患牙作为单冠固定义齿修复基牙的生存率高于作为固定桥义齿修复基牙的生存率（χ2=4.141，P =0.0419）。患牙采用纤维桩修复加强基牙的生存率高于金属桩修复加强基牙的生存率（χ2=18.12，P =0.0001）。预测成功率的列线图模型的一致性指数为0.838。结论：颈部缺损前磨牙全冠修复时应根据不同情况，合理选择不同修复方式，以提高长期保存率。 |
| 关 键 词： | 颈部缺损; 前磨牙; 全冠; 修复; 预后; 回归分析 |
| DOI： | 10.57237/j.wjcm.2023.01.003 |
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收稿日期: 2022-11-13
接受日期: 2023-03-07
在线出版日期: 2023-03-28
Cox Regression Analysis of Prognostic Factors in Full Crown Restoration of Premolars with Cervical Defect
Department of Stomatology, Luqiao Hospital, Taizhou Enze Medical Center (Group), Taizhou 318050, China
| Abstract: | Objective: To study the prognostic factors in Full crown restoration of Premolars with cervical defect by analyzing long-term survival. Methods: A total of 432 Premolars with cervical defect, selected from 2012 Jan to 2014 Dec, were restored by Full crown. According to different repair methods, they were divided into resin repair group and post core repair group. The effect was analyzed by Cox regression analysis in 5-year follow-up. Results: Different repair methods (RR=0.567, 95% CI: 0.355~0.907), Teeth contact (RR=0.033, 95% CI: 0.016~0.840), Abutment teeth (RR=0.494, 95% CI: 0.308~0.793), Dentin shoulder collar (RR=11.465, 95% CI: 6.653~19.759), Defect size RR=0.386, 95% CI: 0.187~0.798) were the isolated factor influencing the prognosis. Further subgroup analysis shows that, the survival rate of the affected teeth as abutments restored with single crown fixed dentures is higher than that restored with fixed bridge dentures (χ2=4.141, P =0.0419). The survival rate of reinforced abutments restored with fiber posts is higher than that of reinforced abutments restored with metal posts (χ2=18.12, P =0.0001)。The C-index of the nomogram for prognosis was 0.838. Conclusion: In order to improve the long-term preservation rate, different restoration methods for Premolars with cervical defect should be selected according to different situations. |
| Keywords: | Cervical Defect; Premolar; Full Crown; Restoration; Prognosis; Multivariate Analysis |
基金
| 1. | 台州市科技计划 (1901ky72) |
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