Comparison of the bite force and occlusal contact area of the deviated and non-deviated sides after intraoral vertical ramus osteotomy in skeletal Class III patients with mandibular asymmetry: Two-year follow-up

Hyejin Kwon, Sun Hyung Park, Hoi In Jung, Woo Chan Hwang, Yoon Jeong Choi, Chooryung Chung, Kyung Ho Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: The objectives of this study were to compare the time-dependent changes in occlusal contact area (OCA) and bite force (BF) of the deviated and non-deviated sides in mandibular prognathic patients with mandibular asymmetry before and after orthognathic surgery and investigate the factors associated with the changes in OCA and BF on each side. Methods: The sample consisted of 67 patients (33 men and 34 women; age range 15–36 years) with facial asymmetry who underwent 2-jaw orthognathic surgery. OCA and BF were taken before presurgical orthodontic treatment, within 1 month before surgery, and 1 month, 3 months, 6 months, 1 year, and 2 years after surgery. OCA and BF were measured using the Dental Prescale System. Results: The OCA and BF decreased gradually before surgery and increased after surgery on both sides. The OCA and BF were significantly greater on the deviated side than on the non-deviated side before surgery, and there was no difference after surgery. According to the linear mixed-effect model, only the changes in the mandibular plane angle had a significant effect on BF (p < 0.05). Conclusions: There was a difference in the amount of the OCA and BF between the deviated and non-deviated sides before surgery. The change in mandibular plane angle affects the change, especially on the non-deviated side, during the observation period.

Original languageEnglish
Pages (from-to)172-181
Number of pages10
JournalKorean Journal of Orthodontics
Volume52
Issue number3
DOIs
Publication statusPublished - 2022 May

Bibliographical note

Funding Information:
The study was supported by a faculty research grant of Yonsei University College of Dentistry (6-2017-0022).

Publisher Copyright:
© 2022 The Korean Association of Orthodontists.

All Science Journal Classification (ASJC) codes

  • Orthodontics

Fingerprint

Dive into the research topics of 'Comparison of the bite force and occlusal contact area of the deviated and non-deviated sides after intraoral vertical ramus osteotomy in skeletal Class III patients with mandibular asymmetry: Two-year follow-up'. Together they form a unique fingerprint.

Cite this