Evaluation of long-term soft tissue changes after bimaxillary orthognathic surgery in Class III patients |
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| Authors: | Halise Aydemir Ruchengiz Efendiyeva Hakan Karasu Ufuk Toygar-Memikolu |
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| Institution: | aAssistant Professor, Turgut Özal University Oral and Dental Health Care Center, Ankara, Turkey. ; bPrivate practice, Akdeniz Oral and Dental Health Care Center, Mersin, Turkey. ; cProfessor, University of Ankara, Faculty of Dentistry, Department of Maxillofacial Surgery, Ankara, Turkey. ; dProfessor, University of Ankara, Faculty of Dentistry, Department of Orthodontics, Ankara, Turkey. |
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| Abstract: | Objective:To assess soft tissues in the short and long term after bimaxillary surgery in Class III patients by comparing the hard tissue changes and results between time periods.Materials and Methods:Twenty-six Class III adult patients treated with bimaxillary surgery were included in the study. Cephalometric records were taken before surgery (T1) and 5 months (T2), 1.4 years (T3), 3 years (T4), and 5 years (T5) after surgery.Results:There was no significant relapse in skeletal parameters. Overjet was significantly reduced between T4-T3 time intervals (P < .01). There were significant increases in Sn-HR, ULA-HR, LLA-HR, B-B∧ (P < .01), and B∧-HR (P < .05) between T4-T3 time intervals. There was no significant change in the soft tissue parameters between T5-T4 time intervals.Conclusion:Soft tissue vertical relapse occurs in skeletally stabile Class III bimaxillary surgery patients in the first 3 years after surgery. |
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| Keywords: | Bimaxillary surgery Soft tissue Class III |
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