지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.9
- 수록면
- 324 - 335 (12page)
이용수
초록· 키워드
오류제보하기
Objective: To compare postoperative positional changes in the mandibular proximal segment between the conventional orthognathic surgery (CS) and the surgery-first approach (SF) using intraoral vertical ramus osteotomy (IVRO) in patients with Class III malocclusion. Methods: Thirty-eight patients with skeletal Class III malocclusion who underwent bimaxillary surgery were divided into two groups according to the use of preoperative orthodontic treatment: CS group (n = 18) and SF group (n = 20). Skeletal changes in both groups were measured using computed tomography before (T0), 2 days after (T1), and 1 year after (T2) the surgery. Three-dimensional (3D) angular changes in the mandibular proximal segment, condylar position, and maxillomandibular landmarks were assessed. Results: The mean amounts of mandibular setback and maxillary posterior impaction were similar in both groups. At T2, the posterior portion of the mandible moved upward in both groups. In the SF group, the anterior portion of the mandible moved upward by a mean distance of 0.9 ± 1.0 mm, which was statistically significant (p < 0.001). There were significant between-group differences in occlusal changes (p < 0.001) as well as in overjet and overbite. However, there were no significant between-group differences in proximal segment variables. Conclusions: Despite postoperative occlusal changes, positional changes in the mandibular proximal segment and the position of the condyles were similar between CS and SF, which suggested that SF using IVRO achieved satisfactory postoperative stability. If active physiotherapy is conducted, the proximal segment can be adapted in the physiological position regardless of the occlusal changes.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
REFERENCES
참고문헌 (21)
참고문헌 신청
Jacobs JD / 1983 / Principles of orthodontic mechanics in orthognathic surgery cases / Am J Orthod 84:399~407
Nagasaka H / 2009 / "Surgery first"skeletal Class III correction using the Skeletal Anchorage System / J Clin Orthod 43:97~105
Kim CS / 2014 / Stability of mandibular setback surgery with and without presurgical orthodontics / J Oral Maxillofac Surg 72:779~787
Nihara J / 2013 / Postoperative changes in mandibular prognathism surgically treated by intraoral vertical ramus osteotomy / Int J Oral Maxillofac Surg 42:62~70
Ohba S / 2015 / The three-dimensional assessment of dynamic changes of the proximal segments after intraoral vertical ramus osteotomy / Cranio 33:276~284
Nagasaka H / 2009 / "Surgery first"skeletal Class III correction using the Skeletal Anchorage System / J Clin Orthod 43:97~105
Kim CS / 2014 / Stability of mandibular setback surgery with and without presurgical orthodontics / J Oral Maxillofac Surg 72:779~787
Nihara J / 2013 / Postoperative changes in mandibular prognathism surgically treated by intraoral vertical ramus osteotomy / Int J Oral Maxillofac Surg 42:62~70
Ohba S / 2015 / The three-dimensional assessment of dynamic changes of the proximal segments after intraoral vertical ramus osteotomy / Cranio 33:276~284
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UCI(KEPA) : I410-ECN-0101-2020-515-001292208