Corresponding Author

Nuo Zhou, Guangxi Medical University College of Stomatology, Nanning, Guangxi, China, No.22 Shuang-Yong Road, Qing-Xue District, Nanning, Guangxi 530021. China, Tel: 86-771-5352512; Fax: 86-771-5356491; E-mail: nzhou.gxmu@gmail.com 

Citation

Zhou, N., et al. Evaluation of Lingual Arch form among Angle Class I, Class Iiand Class III Malocclusions in Chinese Orthodontic Patients. (2018) J Dent Oral Care 4(2): 30- 37.

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© 2018 Zhou, N. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License.

Keywords

Lingual arch form; Alveolar arch width; Lingual arch width; Lingual arch length; Malocclusions

Abstract

Introduction: The aim of this study was to analyze and compare the dental lingual arch widths and lengths, alveolar arch within patients with Angle’s Class I (ACI), Class IIdivision1 (ACII) and Class III (ACIII) malocclusions in Chinese patients.

Methods: This study was performed using measurements on ninety dental casts with ACI (age: 22.2 ± 3.6), ACII (age: 23.0 ± 3.8), and ACIII (age: 22.0 ± 2.8) malocclusion subjects. Two-way ANOVA post-hoc and nonparametric tests were applied for comparisons in groups and genders.

Results: Maxillary canineand premolar alveolar widths and all maxillary lingual lengths were significantly narrower in ACIII (p < 0.05). The mandibular intercanine andintermolar widths were wider and the maxillary intermolar width measurement was larger in ACIII (p < 0.05). Male’s palate height in ACIII was greater than ACII (p < 0.05). Gender differences were also significant in these measurements.

Conclusions: Our data showed undergrowth of the maxilla and overgrowth of the mandible and incisor inclined lingual in ACIII; mandibular growth retrusion and maxillary incisor inclined in ACII. Alveolar width was greater in males than females.