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CC BY-NC-ND 4.0 · Eur J Dent 2021; 15(03): 523-532
DOI: 10.1055/s-0040-1722483
Original Article

The Short-Term Effect of Active Skeletonized Sutural Distractor Appliance on Temporomandibular Joint Morphology of Class III Malocclusion Subjects

Mohamed Zahoor Ul Huqh
1   Orthodontic Unit, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
,
Rozita Hassan
1   Orthodontic Unit, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
,
Roselinda Abdul Rahman
2   Department of Oral and Maxillofacial Surgery, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
,
Asilah Yusof
3   Department of Oral Biology, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
,
Ida Bagus Narmada
4   Department of Orthodontics, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
,
Wan Muhamad Amir W Ahmad
5   Department of Biostatistics, Universiti Sains Malaysia, Kubang Kerian, Malaysia
› Author Affiliations
Funding This study was funded by Research University Individual (RUI) Grant (no: 1001/PPSG/8012277) of the Universiti Sains Malaysia.
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Abstract

Objectives The purpose of this study was to evaluate the short-term effect of active skeletonized sutural distractor (ASSD) appliance on temporomandibular joint morphology of class III malocclusion subjects.

Materials and Methods This was a prospective interventional study. Cone-beam computerized tomography (CBCT) images of 22 patients were taken before and after treatment by using Planmeca Promax 3D CBCT machine version 2.9.2 (Planmeca OY Helsinki, Finland). The condylar width, height, length, roof of glenoid fossa thickness, and all joint spaces were measured. The condylar position was determined based on Pullinger and Hollander formula. The condylar shape was determined as per Kinzinger et al. The condylar volume was calculated by using Mimics software (Materialize, Belgium).

Statistical Analysis Data analysis was performed by using SPSS software version 24. Wilcoxon paired signed-rank test was used to compare the difference in temporomandibular joint morphology and condylar volume between pre- and post-treatment measurements. Chi-square test was used to compare the condylar position and shape.

Results The superior (p = 0.000 on the right side, p = 0.005 on the left side) and posterior joint spaces (p = 0.000 on both sides) were decreased after the treatment, respectively. The condyles were rotated upward and backward, thereby increasing the anterior joint spaces (p = 0.000 on both sides) after the treatment. The condylar volume increases after treatment, but no significant differences were observed (p = 0.903 on the right side, p = 0.062 on the left side).

Conclusion The significant changes were observed in joint spaces. The condyles were more anteriorly placed before treatment. Condylar position and shape alter in response to ASSD treatment. The condylar volume did not show any significant change.

Keywords

class III malocclusion - temporomandibular joint morphology - orthodontic treatment - fixed appliance - cone-beam computed tomography


Publication History

Article published online:
23 February 2021

© 2021. European Journal of Dentistry. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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