Root resorption observation of molars distalized by face bow using dental positioning films
- VernacularTitle:根尖定位片定量观测推磨牙远移后牙根吸收
- Author:
Lei WANG
;
Yinzhong DUAN
;
Yanqing WANG
- Publication Type:Journal Article
- Keywords:
Molars distalization;
Face bow;
Root resorption;
Oral positioner
- From:
Journal of Practical Stomatology
1996;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the influence on root resorption after distalizing molars with face bow.Methods:15 cases whose molars were distalized with face bow were selected in present research. Root lengths were measured on pre-treatment and post-treatment dental films taken with the oral positioner. The distances of molar distalization were measured on cephalometric radiographs.The differences of the pre-treatment and post-treatment root lengths were evaluated by the Paired t-test.The correlation between the distance of molars distalization and the root resorption of the maxillary molars was analyzed with Pearson's correlation coefficients.Results:The root lengths between the pre-treatment and post-treatment showed a statistically significant difference(P
