乳牙反(牙合)矫正后复发率及其影响因素研究

目的 追踪乳牙反(牙合)治疗后复发情况,研究影响复发的显著因子及影响模式.方法 统计109例乳牙反(牙合)患者替牙期前牙反(牙合)复发率;回顾性研究分组比较各项复发潜在影响因素并探寻显著影响因子.结果 1.样本乳牙反(牙合)替牙期复发率为46.8%.2.影响复发的各潜在因素中,骨性反(牙合)(ANB角负值)、后牙反(牙合)百分比、乳牙滞留存在率、喂养方式构成比、不良习惯阳性率等两组存明显差异.3.二项逻辑回归分析提示喂养方式及有否乳牙滞留与反(牙合)复发关系最密切.结论 1.乳牙反(牙合)矫正后复发率较高,对其治疗的长期性应提高重视.2.复发的影响模式可能倾向于各因素叠加后的综合效应.

Abstract：

Objective To investigate the recurrence rate of the corrected crossbite in deciduous dentition and to explore the potential influencing factors. Methods Prospective controlled clinical trial was carried out in 109 patients whose deciduous crossbite had been corrected. The recurrence rate and the potential influencing factors were investigated. Results (1) The recurrence rate in the investigation was 46. 8%. (2) The potential influencing factors included occurrence of the negative ANB angle, the posterior crossbite, the improper oral habits, the retained primary teeth and the feeding method. (3) Feeding method and retained deciduous teeth might be the most powerful factors contributed to the recurrence of the crossbite in deciduous dentition. Conclusions The recurrence rate of the crossbite in deciduous dentition was high and the mechanism of recurrence was comprehensive.

Recurrence rate of the corrected crossbite in deciduous dentition and its potential influencing factors

Objective To investigate the recurrence rate of the corrected crossbite in deciduous dentition and to explore the potential influencing factors. Methods Prospective controlled clinical trial was carried out in 109 patients whose deciduous crossbite had been corrected. The recurrence rate and the potential influencing factors were investigated. Results (1) The recurrence rate in the investigation was 46. 8%. (2) The potential influencing factors included occurrence of the negative ANB angle, the posterior crossbite, the improper oral habits, the retained primary teeth and the feeding method. (3) Feeding method and retained deciduous teeth might be the most powerful factors contributed to the recurrence of the crossbite in deciduous dentition. Conclusions The recurrence rate of the crossbite in deciduous dentition was high and the mechanism of recurrence was comprehensive.