安徽医科大学学报2012，Vol.47Issue(1)：82-85,4.
单侧第三磨牙伸长对下颌边缘运动轨迹的影响
The effect of unilateral hyper-erupted third molar on the mandibular border movements
张哲 1王楠 1侯爱兵1
作者信息
- 1. 安徽医科大学附属口腔医院综合科,安徽省口腔临床医学重点学科,安徽省口腔疾病研究省级实验室,中央与地方共建口腔医学中心实验室,合肥,230032
- 折叠
摘要
Abstract
To investigate the effect of unilateral hyper-erupted third molar on the mandibular border movements. Methods Adopted ARCUSdigma II mandibular movements tracing instrument, with 56 unilateral hyper-erupted third molars 28 cases upper( group A ) ,28 cases lower jaw( group B ), and 28 cases without hyper-erupted third molars( group C ), the mandibular border movements were enrolled in this study. Results ①Lateral movements of normal sides in group A were different significantly with control group( P < 0. 01 ), and hyper-erupted sides were different with normal sides( P < 0. 05 ) in group A; protrusive movements in group B were less than that in control group( P < 0. 01 ).② Maximum remainder of bilateral condylar movements( MRC ): opening movements ( anterior-posterior ), protrusive movements( vertical )in group A were different significantly with control group( P < 0. 01 ); protrusive movements ( anterior-posterior ) in group B were different with control group ( P < 0. 01 ). ③ Movements trail of incisor point was regular and profluent in control group, however, it was abrupt in test groups with large fluctuation. Conclusion Unilateral hyper-erupted third molar can affect range and feature in border movements of incisor point, also affect symmetry of condyles movements.关键词
第三磨牙/下颌运动/切点/髁突Key words
third molar/ mandibular movements/ incisor point/ condylar process分类
医药卫生引用本文复制引用
张哲,王楠,侯爱兵..单侧第三磨牙伸长对下颌边缘运动轨迹的影响[J].安徽医科大学学报,2012,47(1):82-85,4.
