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Comparison of arch width, alveolar width and buccolingual inclination of teeth between Class II division 1 malocclusion and Class I occlusion
ارتودنسی
Orthodontics
پژوهشي
Research
<p> <strong>Objective</strong>: </p><p> To compare the arch width, alveolar width, and buccolingual inclination of maxillary and mandibular posterior teeth between Class II division 1 malocclusion and Class I occlusion. </p><p> <strong>Materials and Methods:</strong> </p><p> Forty-five subjects with Class I occlusion and 45 subjects with Class II division 1 malocclusion were selected to measure the maxillary and mandibular arch width and alveolar width of premolars and first molars with digital caliper. Buccolingual inclination of maxillary and mandibular premolars and first molars were measured with a modified universal bevel protractor. </p><p> <strong>Results:</strong> </p><p> All of the posterior teeth in both groups were lingually tilted. The maxillary premolars and first molars were significantly more lingually tilted (P < .05) in Class II division 1 malocclusion than in Class I occlusion. Mandibular first premolars were significantly less lingually tilted in Class II division 1 malocclusion than in Class I occlusion. No significant difference of buccolingual inclination was found in mandibular second premolars and first molars between the two groups. No significant difference in maxillary and mandibular arch width and alveolar width was found between the two groups. </p><p> <strong>Conclusions:</strong> </p><p> Buccolingual inclination rather than arch width and alveolar width plays an important role in transverse discrepancy of Class II division 1 malocclusion. </p><hr><p></p><p> <strong>Source: </strong>The Angel Orthodontists</p><p> <a href="http://www.angle.org/doi/abs/10.2319/052412-427.2" target="_blank"><font color="#0000ff">Full Text</font></a></p>
Class II division 1 malocclusion, Buccolingual inclination, Arch width, Alveolar width
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http://idai.ir/browse.php?a_code=A-10-32-1939&slc_lang=fa&sid=1
Rui
Shu
10031947532846009100
10031947532846009100
No
Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, PR China
Xianglong
Han
10031947532846009101
10031947532846009101
No
Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, PR China
Yatin
Wang
10031947532846009102
10031947532846009102
No
Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, PR China
Hui
Xu
10031947532846009103
10031947532846009103
No
Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, PR China
Dongqing
Ai
10031947532846009104
10031947532846009104
No
Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, PR China
Lufei
Wang
10031947532846009105
10031947532846009105
No
Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, PR China
Yeke
Wu
10031947532846009106
10031947532846009106
No
Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, PR China
Ding
Bai
baiding@scu.edu.cn
10031947532846009107
10031947532846009107
Yes
State Key Laboratory of Oral Diseases (Sichuan University), Department of Orthodontics, West China Stomatology Hospital of Sichuan University Chengdu, Sichuan, PR China