A CBCT comparative study of alveolar bone remodeling of the anterior teeth with labial straight wire appliance and personalized lingual appliance
10.3969/j.issn.1001-3733.2025.04.018
- VernacularTitle:唇侧直丝弓矫治器和个性化舌侧矫治器上前牙区牙槽骨改建的CBCT对比研究
- Author:
Xiaomei WU
1
;
Hongming GUO
Author Information
1. 100039,北京中西医结合医院口腔科
- Publication Type:Journal Article
- Keywords:
Bimaxillary dentoalveolar protrusion;
Retraction of anterior teeth;
Personalized lingual appliance;
Alveolar bone thickness;
Alveolar bone height;
Remodeling of alveolar bone
- From:
Journal of Practical Stomatology
2025;41(4):543-548
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare the changes of alveolar bone thickness and height in patients with bimaxillary dentoalveolar protrusion after the treatment with labial straight wire appliance and personalized lingual appliance for the retraction of anterior teeth.Methods:31 cases of labial fixed orthodontic treatment and 31 of personalized lingual orthodontic treatment were included.CBCT images were taken before and after treatment,the thickness and height of the alveolar bone on both sides of the upper anterior teeth were measured and statistically analyzed.Results:After the upper anterior teeth were retracted with labial aligner,the thick-ness of the alveolar bone in the labial root middle 1/2 and apical region of the upper incisors increased,the thickness of the alveolar bone in the cervical region of the labial side of the upper canine increased(P＜0.05),whereas the thickness and height of the alve-olar bone in the palatal side of the upper anterior teeth decreased,and the total thickness of the alveolar bone in the apical region decreased(P＜0.05).After the anterior teeth retracted with lingual aligners,the alveolar bone thickness of the labial cervical of the upper middle incisors and lateral incisors decreased,the alveolar bone thickness of the apical region of the upper middle incisors and upper canine increased,and the thickness and height of the palatal alveolar bone of the upper anterior teeth decreased,with the total thickness of the apical region decreased(P＜0.05).The reduction of alveolar bone thickness of the labial neck and root middle 1/2 of the upper incisors and alveolar bone height of the palatal side of the upper canine in the lingual appliance group was more than that in the laial group(P＜0.05).Conclusion:Labial straight wire appliance and personalized lingual appliance are effective in the retraction of the anterior teeth and the alveolar bone remodeling based on bone resorption,labial appliance is more effective.
