期刊文献+

拔牙矫治与非拔牙矫治对牙槽骨宽度影响的比较研究 被引量:11

Comparison of the arch width between extraction and nonextraction orthodontic treatments
下载PDF
导出
摘要 目的研究拔牙矫治与非拔牙矫治对牙槽骨宽度的影响。方法选正畸临床非拔牙病例和拔除四颗第一双尖牙病例各32例,分别对其矫治前和矫治后模型的下颌尖牙间、上颌尖牙间、下颌第二磨牙间及上颌第二磨牙间牙槽骨宽度进行测量,测量点为牙根牙槽部之最突点,测量数据经统计学分析。结果矫治后,拔牙组比非拔牙组下颌、上颌前部宽度分别增加了1.57mm、1.64mm(P均<0.01),而后部宽度的差异无统计学意义。矫治前后,非拔牙组牙槽骨前后部宽度变化不明显(P均>0.05);而拔牙组下颌前部宽度增加了2.47mm(P<0.001),上颌前部宽度增加了2.07mm(P<0.01),而后部宽度的变化不明显(P均>0.05)。结论非拔牙矫治对牙槽骨前、后部宽度无影响;拔牙矫治对牙槽骨后部宽度也无影响,但对前部宽度不但未引起降低,反而有明显的增宽。拔牙矫治导致牙弓缩窄、从而影响美观的结论有待探讨。 Objective To investigate the effect of orthodontic tooth extraction and nonextraction on the dental arch widths. Methods Thirty-two patients treated without extraction and 32 patients treated with extraction of 4 first-premolars were selected. The study models of the patients were measured before and after the treatment and compared statistically. Measurements were made in the mandibular and maxillary canine regions and the second molar regions from the most labial aspect of the buceal surfaces of the roots. Results After treatment, the anterior width of mandibular arch in the extraction group was 1.57mm larger than that in the nonextraction group ( P 〈 0.01 ) ; meanwhile the anterior width of maxillary arch in the extraction group was 1.64mm larger ( P 〈 0.01 ). There were no statistical differences in both mandibular and maxillary posterior regions. In nonextraction group, there were no statistical differences in both anterior and posterior regions of mandible and maxilla between pre-treatment and post-treatment. In extraction group, mandibular anterior arch width of post-treatment was 2.47mm larger than that of pre-treatment ( P 〈 0.001 ), maxillary anterior arch width of post-treatment was 2.07mm large( P 〈 0.01 ). There were no statistical differences in posterior regions of mandible and maxilla between pretreatment and post-treatment. Conclusion Non extraction treatment does effects on neither anterior nor posterior arch width. Extraction treatment does not effect on posterior arch width, but it can increase anterior arch width. The view that orthodontic extraction results in narrower arch widths and unesthetic faces is untenable.
出处 《现代口腔医学杂志》 CAS CSCD 北大核心 2006年第1期28-30,共3页 Journal of Modern Stomatology
关键词 拔牙 非拔牙 模型 牙槽骨宽度 Extraction Nonextraction Model Arch width
  • 相关文献

参考文献2

二级参考文献2

  • 1罗颂椒,陈安玉,蔡长银,徐玲,吴东方,叶长根.正常儿童及青少年牙生长发育的测量研究[J]华西口腔医学杂志,1984(03).
  • 2谢以岳.正畸拔牙的若干问题[J].中华口腔正畸学杂志,1994,10(1):44-46. 被引量:19

共引文献48

同被引文献65

引证文献11

二级引证文献23

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部