Comparison of transverse dimensional changes in surgical skeletal class III patients with and without presurgical orthodontics

Yu Chih Wang, Ellen Wen Ching Ko, Chiung Shing Huang, Yu Ray Chen, Teruko Takano-Yamamoto

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Purpose: To investigate transverse dimensional changes of dental arches in surgical skeletal Class III patients with and without presurgical orthodontics. Materials and Methods: Thirty-six patients with skeletal Class III were included and grouped into those with or without presurgical orthodontics. Eighteen patients (mean age, 22.3 ± 3.8 years) with presurgical orthodontics (mean presurgical orthodontic treatment time, 176.3 ± 38.3 days) were in the orthodontics-first (OF) group; the other 18 patients (mean age, 23.3 ± 4.2 years) without presurgical orthodontics were in the surgery-first (SF) group. The posteroanterior cephalograms initially, before surgery, immediately after surgery, and 1 year after surgery were traced and analyzed. The inclination change of canines and molars was measured to interpret the changes of transverse dimension in both dental arches. Paired and unpaired t tests were performed to test intra- and intergroup differences (P < .05). Results: Dental changes in transverse planes demonstrated a similar trend in both groups. The maxillary canines were buccally tilted (SF vs OF group, 1.7° vs 1.9°), the maxillary molars were lingually tilted (SF group vs OF group, -4.7° vs -1.0°), the mandibular canines were lingually tilted (SF group vs OF group, 2.9° vs 2.8°), and the mandibular molars were buccally tilted (SF group vs OF group, -6.1° vs -5.4°). Conclusion: The magnitude and trend of transverse dental changes in patients with surgical skeletal Class III were similar whether receiving presurgical orthodontics or not.

Original languageEnglish
Pages (from-to)1807-1812
Number of pages6
JournalJournal of Oral and Maxillofacial Surgery
Volume68
Issue number8
DOIs
Publication statusPublished - 2010 Aug 1

ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology

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