DOI QR코드

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Differences in opening and protrusive mandibular movements between Class I and II malocclusions in healthy adolescents

  • Tuncer, Bureu Balos (Department of Orthodontics, Gazi University Faculty of Dentistry) ;
  • Ozogul, Berk (Department of Orthodontics, Gazi University Faculty of Dentistry) ;
  • Akkaya, Sevil (Department of Orthodontics, Gazi University Faculty of Dentistry)
  • 투고 : 2010.09.30
  • 심사 : 2011.01.29
  • 발행 : 2011.04.30

초록

Objective: The aim of the study was to compare the opening and protrusive mandibular movements between Class I and Class II malocclusions in healthy adolescents by clinical and axiographic evaluations. Methods: Mechanical axiography was performed on non-orthodontically treated, temporomandibular disorder (TMD)-free adolescents (12 - 16 years) with Class I (n = 38, 16 boys, 22 girls) or Class II (n = 40, 19 boys, 21 girls) malocclusion. Opening and protrusive movements were measured clinically and axiographically. Intergroup comparisons were evaluated by t-tests. Results: In opening movement, the maximum clinical opening capacity was significantly different (p ${\leq}$ 0.05) between the groups. In protrusive movement, the Class II group had significantly greater maximum clinical protrusion (p < 0.001) and maximum axiographic protrusive length (p < 0.01) than the Class I group. No significant difference in the other opening and protrusive axiographic measurements was observed. Conclusions: TMD-free adolescents with Class II malocclusion have increased protrusive capacity compared with TMD-free adolescents with Class I malocclusion; however, the detected differences could be normal variations during adolescence.

키워드

참고문헌

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피인용 문헌

  1. Assessment of the Temporomandibular Joint Function in Young Adults without Complaints from the Masticatory System vol.15, pp.2, 2011, https://doi.org/10.7150/ijms.21665
  2. Antero-posterior mandibular position at different vertical levels for mandibular advancing device design vol.19, pp.None, 2019, https://doi.org/10.1186/s12903-019-0783-8
  3. Relationship between dentofacial morphology and mandibular movement from rest position to maximum intercuspation in Class II division 1 malocclusion patients vol.8, pp.4, 2019, https://doi.org/10.4103/ijhas.ijhas_21_19