The anatomical features of maxillary tuberosity in Uyghur patients with different skeletal malocclusion:A CBCT study
10.3969/j.issn.1001-3733.2025.06.014
- VernacularTitle:维吾尔族不同骨性错(牙合)畸形患者上颌结节解剖特征的CBCT研究
- Author:
Jie YANG
1
;
Wanyu ZHU
1
;
Xiaoyu SHI
1
;
Jing NIE
1
Author Information
1. 830054 乌鲁木齐,新疆医科大学第一附属医院(附属口腔医院)正畸科
- Publication Type:Journal Article
- Keywords:
Uyghur;
Skeletal malocclusion;
Maxillary tuberosity;
Molar distalization
- From:
Journal of Practical Stomatology
2025;41(6):807-811
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To measure the length and width of maxillary nodules in patients with different bony malocclusions in Uyghurs and to investigate the limits of distal displacement of maxillary molars in patients with different bony malocclusions in Uyghurs.Methods:60 adult Uyghur patients with bony Class Ⅰ(n=21),Class Ⅱ(n=21),and Class Ⅲ(n=18)malocclusion with 120 lateral maxillary tubercle CBCT images were analyzed,and the length(L:left,R:right)and width(W)of the maxillary tubercle area at different locations were measured on the designated sagittal and axial sections.The length and width of maxillary tuberosities in patients with different bony malocclusion were analyzed using SPSS 26.0 software,and the data were compared among the 3 groups.Results:The length and width of maxillary nodules in Uyghur patients with skeletal type Ⅲ were significantly smaller than those in the other 2 groups at measurement levels of 3.0,6.0 and 9.0 mm from the cemento-enamel junction of the maxillary second molar towards the root apex(L3,L6,L9),W6 and W9(P＜0.05).No significant difference was seen between the length and width of the maxillary tuberosity in osseous category Ⅰ and osseous category Ⅱ subjects.The widest maxillary nodule was loca-ted at the W3 level(12.52±2.07)mm and the narrowest at the W9 level(6.73±3.35)mm.The longest maxillary nodule was loca-ted at the L9 level(8.64±2.70)mm and the shortest at the L3 level(7.62±2.15)mm.Conclusion:The length and width of the maxillary tubercle in Uyghur patients with bony Class Ⅲ malocclusion are smaller than those of bony Class Ⅰ and bony Class Ⅱ.When pushing the distal displacement of maxillary molars,attention should be focused on the anatomical morphology of the maxillary tubercle to determine the limits of distal displacement of the maxillary dentition.
