摘要
目的评估双侧乳磨牙早失儿童戴用铸造式和丝圈式间隙保持器后,两者在维持牙弓长度以及咀嚼功能方面的作用。方法将40例双侧乳磨牙早失的患者随机分为实验组和对照组,实验组使用铸造式间隙保持器,对照组使用传统的丝圈式间隙保持器,测定戴用前后患者的咀嚼效率及前磨牙区的拥挤发生率,并应用配对t检验进行统计学分析。结果双侧乳磨牙早失患者戴用铸造式间隙保持器后,咀嚼效率有明显提高(P<0.01)。结论对乳磨牙早失儿童应采用铸造式间隙保持器,在有效维持前磨牙区牙弓长度的同时,可显著提高其咀嚼功能。
Objective To evaluate the masticatory function and maintain of arch ability in patients with casting space maintainer and traditional space maintainer.Methods 40 patients losing bilateral primary molars were divided into 2 groups,and the patients in the experimental group and control group received casting space maintainers and traditional space maintainers respectively.Masticatory and crowded efficiency were measured before and after the treatment.All data were submitted to statistical analysis by paired t-test.Results The significant differences of masticatory efficiency were found before and after the treatment with casting space maintainers in the experimental group（P〈0.01）,but not in the control group.Conclusion The casting space maintainers can keep the arch length of premolar region,improve the masticatory function,and is more appropriate for the children with early losing of primary molars.
出处
《中华全科医学》
2010年第7期837-838,共2页
Chinese Journal of General Practice
关键词
间隙保持器
咀嚼效率
乳磨牙早失
Space maintainer
Masticatory efficiency
Early losing of primary molars
