The impact of maxillary anterior protraction combined with rapid arch expansion on buccal corridor and smile aesthetics in the treatment of skeletal Class Ⅲ malocclusion
10.13591/j.cnki.kqyx.2025.08.004
- VernacularTitle:上颌前方牵引联合快速扩弓治疗骨性Ⅲ类错(牙合)对颊旁间隙及微笑美学的影响
- Author:
Rongxiu ZHANG
1
;
Li XU
1
;
Fang LIU
1
;
Ruixue TIAN
1
Author Information
1. 蚌埠医科大学第一附属医院口腔科,安徽 蚌埠(233004)
- Publication Type:Journal Article
- Keywords:
skeletal Class Ⅲ malocclusion;
maxillary anterior traction;
rapid arch expansion;
parabuccal space;
smile aesthetics
- From:
STOMATOLOGY
2025;45(8):585-589
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the impact of maxillary anterior traction combined with rapidarch expansion on parabuccal space and smile aesthetics in patients with skeletal Class Ⅲ malocclusion.Methods The patients with maxillary insufficiency and skeletal Class Ⅲ malocclusion admitted to the First Affiliated Hospital of Bengbu Medical University from January 2021 to June 2023 were retro-spectively analyzed.The control group received maxillary protraction treatment,while the experimental group received maxillary protrac-tion combined with rapid arch expansion treatment.The overall treatment effectiveness,buccal corridor area ratio,smile index,smile symmetry ratio,and patient satisfaction with smile aesthetics were compared between the two groups.Results After correction,the to-tal effective rates of the experimental group and the control group were 82.61％and 52.38％,respectively;the area ratio of parabuccal space were 7.10±0.96 and 8.21±1.28,respectively;the smile index were 5.16±0.83 and 6.33±1.03,respectively;the smile symmetry ratio were 0.96±0.18 and 0.83±0.14,respectively;the satisfaction of patients with smile aesthetics were 86.96％and 47.62％,respec-tively.The differences in the above indexes were statistically significant(P＜0.05).Conclusion The maxillary anterior traction com-bined with rapid arch expansion had a significant effect on the correction of patients with skeletal Class Ⅲ malocclusion,effectively re-ducing the buccal corridor and enhancing smile aesthetics.
