冠式间隙保持器恒牙助萌效果的影响因素分析

Analysis of the influence factors of crown space maintainer for incision sprout

目的探讨冠式间隙保持器恒牙助萌效果的相关因素。方法收集武汉市妇女儿童医疗保健中心2007年1月至2011年12月收治的乳牙早失患儿150例的资料,采用单因素与多因素分析影响冠式间隙保持器恒牙助萌效果的因素。结果 132例患儿助萌成功,占全部患儿的88%。年龄、性别、缺牙数目、牙周情况、继承恒牙发育情况、患儿合作程度和缺牙时间均与助萌成功率相关,其中年龄、缺牙数目和缺牙时间与助萌成功率呈负相关;性别、牙周情况、继承恒牙发育情况和患儿合作程度与助萌成功率呈正相关。结论全面考虑影响助萌效果的因素,预防咬合紊乱的发生。

Objective To explore the factors of crown space maintainer for incision sprout. Methods Retrospective analysis of the 150 children for maxiUofacial fractures from Jan. 2007 to Dec. 2011 in Women＇s and Children＇s Health Care Center of Wuhan City was concluded, and the influencing factors for incision sprout effect of crown space maintainer were analyzed by One-way anal-ysis of variance and multiple factors analysis statistically. Results A total of 132 children were successful. The success rate of cu-ring was 88 %. The age, sex, numbers of missing teeth, periodontal attachment, growth parameters of permanent teeth, collaboration for ＇children and time for missing were the influencing factors for incision sprout effect of crown space maintainer. The age, numbers of missing teeth and time for missing was negatively related to the success rate. The sex, periodontal attachment, growth parameters of permanent teeth and collaboration for children was positive correlated with the success rate. Conclusion We should view the fac-tors of crown space maintainer for incision sprout from all angles to prevent the occlusion disorder.