中国实用口腔科杂志 ›› 2011, Vol. 4 ›› Issue (08): 469-471.

• 论著 • 上一篇    下一篇

青年正常牙合者前伸牙合颌位和侧牙合颌位牙合接触情况研究

  

  1. 1.福建医科大学附属口腔医院修复科  福州  350002;2.福建医科大学生物力学与美学研究中心,福州  350002
  • 收稿日期:2011-06-18 修回日期:2011-07-28 出版日期:2011-08-15 发布日期:2011-09-07

  • Received:2011-06-18 Revised:2011-07-28 Online:2011-08-15 Published:2011-09-07

摘要:

目的    研究青年正常牙合者前伸牙合颌位和侧牙合颌位的牙合接触情况。方法    2010年9月至2011年4月按纳入标准,从福建医科大学1350名本科生中筛选162名正常牙合志愿者,男55名,女107名,年龄18~23岁。用Bausch咬合膜拉出法检测前伸牙合及侧牙合颌位的牙合接触牙位,分别归纳、统计两种颌位的牙合接触情况分布。结果    前伸牙合颌位:前牙接触、后牙无接触者111人(68.52%),前、后牙均有接触者49人(30.25%),后牙接触、前牙无接触者2人(1.23%)。侧牙合颌位:工作侧接触、非工作侧无接触241人(74.38%),工作侧、非工作侧均有接触75例(23.15%),非工作侧接触、工作侧无接触8人(2.47%),其中双侧一致者142人(87.65%),双侧不一致者20人(12.35%)。结论    在正常牙合人群,前伸牙合颌位时,可能出现仅有前牙接触和前、后牙均有接触及仅有后牙接触的牙合接触情况,其中仅有前牙接触的牙合接触情况最常见;侧牙合颌位时,可能出现仅有工作侧接触和工作侧、非工作侧均有接触及仅有非工作侧接触的牙合接触情况,其中仅有工作侧接触最常见。在侧牙合颌位,大部分人为双侧一致。

关键词: 正常牙合,  , 咬合接触, 前伸牙合颌位, 侧牙合颌位

Abstract:

Objective    To study the situation of occlusion contact in the normal occlusions at mandibular protrusion and lateral excursion. Methods    Totally 162 volunteers were recruited from Fujian Medical University (male55, female107, age: 18-23). Occlusions of the volunteers were examined with thin articulating film at protrusion and lateral excursion. Results    At protrusion, 111 volunteers had contacts only on their anterior teeth(68.52%), 49 had contacts both on anterior and posterior teeth(30.25%), and 2 volunteers had contacts only on posterior teeth(1.23%). In lateral excursion, the majority of volunteers had contacts only at the working side(241 cases,74.38%); many people contacted both at the working and non-working sides(75 cases,23.15%); a few volunteers only had contacts at the non-working side(8 cases,2.47%).Among the volunteers,142 of them were bilateral symmetry(87.65%), and 20 were bilateral asymmetry(12.35%). Conclusion    Within the limitation of the study, in mandibular protrusion, contacts only at anterior teeth are most frequently to be observed,while at mandibular lateral excursion, contacts only at the working-side are the predominance. The majority is bilateral symmetry .

Key words: normal occlusion; occlusion contact; protrusion; lateral excursion