摘要
目的：对近年来我科诊断治疗的95例129颗正中多生牙的临床特征与处理进行分析总结，比较疗效，为临床治疗提供参考。方法：对已确诊的95例129颗发生在上颌前牙区的正中多生牙患者的就诊年龄、性别分布以及多生牙的形状、数量、位置、方向等特征进行统计分析，比较乳牙期（4-6岁）、混合牙列早期（6-9岁）、混合牙列晚期（9-12岁）及恒牙期（12岁以上）等不同时期多生牙的处理及12个月后复诊情况（以中切牙是否需矫正为标准），探讨多生牙的发病特点、治疗时机与方法。应用SPSS22．0软件包对数据进行统计学分析。结果：57．89％的正中多生牙就诊年龄在混合牙列早期（6-9岁）；男性发生率是女性的2．44倍；66．32％的多生牙为单发，76．74％为圆锥形，55．04％为垂直向阻生．37．98％为倒置阻生。男女之间各项特征经似然比检验．差别无统计学意义。不同年龄较多生牙的处理及12个月后复诊结果经Fisher精确概率法检验无显著差异。结论：早期拔除正中多生牙对恒中切牙影响最小，部分乳牙期及混合牙列早期有萌出潜力的病例．可观察3-6个月再拔除．
PURPOSE： By analyzing and summarizing the clinical features of 129 mesiodens from 95 teenagers treated in recent years, the treatment outcomes were compared to provide reference for clinical management. METHODS： The distribution of age and gender of patients, numbers, shapes and locations of mesiodens from 95 teenagers with 129 mesiodens were analyzed retrospectively. Different treatments for mesiodens were adopted at different time period： the deciduous dentition period （4-6 years）, the early phase of mixed dentition period （6-9 years）, the advanced phase of mixed dentition period （9-12 years） and the permanent dentition period （〉12 years）. The outcomes 12 months after treatment （whether the incisor needs to be corrected is used as the criterion） were evaluated. The possible pathogenesis, time and methods of treatment were explored in this paper. SPSS22.0 software package was used for data analysis. RESULTS： 57.89% mesiodens were found in the early stage of mixed dentition, the incidence in males was 2.44 times as in females. 66.32% mesiodens were single, 76.74% were cone, 55.04% were vertically impacted, 37.98% were inverted impacted. There was no significant difference between female and male. Fisher＇s exact test indicated no significant difference at different age group 12 months after treatment. CONCLUSIONS： Removal of mesiodens at the early stage has the least impact on permanent central incisors. For those with potentials to erupt in deciduous or at the early stage of mixed dentition period, the mesiodens may be removed after observation for 3 to 6 months.
出处
《中国口腔颌面外科杂志》
CAS
2016年第6期549-552,共4页
China Journal of Oral and Maxillofacial Surgery
关键词
正中多生牙
上颌中切牙
埋伏多生牙
Mesiodens
Maxillary incisor
Embeded supernumerary teeth
