Three-dimensional evaluation of mandibular width after mandibular asymmetric setback surgery using sagittal split ramus osteotomy
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Objective: The study aimed to evaluate the changes in mandibular width after sagittal split ramus osteotomy (SSRO) in patients with mandibular asymmetric prognathism using cone-beam computed tomography (CBCT). Methods: Seventy patients who underwent SSRO for mandibular setback surgery were included in two groups, symmetric (n = 35) and asymmetric (n = 35), which were divided according to the differences in their right and left setback amounts. The mandibular width was evaluated three-dimensionally using CBCT images taken immediately before surgery (T1), 3 days after surgery (T2), and 6 months after surgery (T3). Repeated measures analysis of variance was applied to verify the differences in mandibular width statistically. Results: Both groups showed a significant increase in the mandibular width at T2, followed by a significant decrease at T3. No significant difference was observed between T1 and T3 in any of the measurements. No significant differences were found between the two groups (p > 0.05). Conclusions: After mandibular asymmetric setback surgery using SSRO, the mandibular width increased immediately but returned to its original width 6 months after surgery.
Abstract
Objective: The study aimed to evaluate the changes in mandibular width after sagittal split ramus osteotomy (SSRO) in patients with mandibular asymmetric prognathism using cone-beam computed tomography (CBCT). Methods: Seventy patients who underwent SSRO for mandibular setback surgery were included in two groups, symmetric (n = 35) and asymmetric (n = 35), which were divided according to the differences in their right and left setback amounts. The mandibular width was evaluated three-dimensionally using CBCT images taken immediately before surgery (T1), 3 days after surgery (T2), and 6 months after surgery (T3). Repeated measures analysis of variance was applied to verify the differences in mandibular width statistically. Results: Both groups showed a significant increase in the mandibular width at T2, followed by a significant decrease at T3. No significant difference was observed between T1 and T3 in any of the measurements. No significant differences were found between the two groups (p > 0.05). Conclusions: After mandibular asymmetric setback surgery using SSRO, the mandibular width increased immediately but returned to its original width 6 months after surgery.
참고문헌 (20)
- 장갑수, "A three-dimensional photogrammetric analysis of the facial esthetics of the Miss Korea pageant contestants", 대한치과교정학회지, 47(2), pp.87~99 (2017), 대한치과교정학회
- Kim SK, "Classification and treatment of prominent mandibular angle", Aesthetic Plast Surg, 25, pp.382~387 (2001)
- Yang WS, "The study on the orthodontic patients who visited Department of Orthodontics, Seoul National University Hospital during last 10 years (1985-1994)", Korean J Orthod, 25, pp.497~509 (1995)
- Bell WH, "Modern practice in orthognathic and reconstructive surgery" (1993), Saunders
- Busby BR, "Long-term stability of surgical class III treatment : a study of 5-year postsurgical results", Int J Adult Orthodon Orthognath Surg, 17, pp.159~170 (2002)
- Proffit WR, "Stability after surgical-orthodontic correction of skeletal Class III malocclusion. I. Mandibular setback", Int J Adult Orthodon Orthognath Surg, 6, pp.7~18 (1991)
- Choi HS, "Effect of mandibular setback via bilateral sagittal split ramus osteotomy on transverse displacement of the proximal segment", J Oral Maxillofac Surg, 63, pp.908~916 (2005)
- 최우혁, "하악전돌증 환자에 있어 양측 하악상행지 시상골절단술이술후 과두위치 변화에 미치는 영향에 대한 연구", Maxillofacial Plastic Reconstructive Surgery, 25(6), pp.525~532 (2003), 대한악안면성형재건외과학회
- Yoo JY, "Transverse stability of the proximal segment after bilateral sagittal split ramus osteotomy for mandibular setback surgery", Int J Oral Maxillofac Surg, 42, pp.994~1000 (2013)
- Yeo BR, "Horizontal changes of the proximal mandibular segment after mandibular setback surgery using 3-dimensional computed tomography data", Oral Surg Oral Med Oral Pathol Oral Radiol, 125, pp.14~19 (2018)
- Lim SY, "Cone-beam computed tomography evaluation on the changes in condylar long axis according to asymmetric setback in sagittal split ramus osteotomy patients", Angle Orthod, 87, pp.254~259 (2017)
- Song SH, "Three-dimensional analysis of transverse width of hard tissue and soft tissue after mandibular setback surgery using intraoral vertical ramus osteotomy : a retrospective study", J Oral Maxillofac Surg, 77, pp.407~ (2019)
- Ha Sang-Woon, "Characterization of facial asymmetry phenotypes in adult patients with skeletal Class III malocclusion using three-dimensional computed tomography and cluster analysis", 대한치과교정학회지, 52(2), pp.85~101 (2022), 대한치과교정학회[DOI]
- Cohen J, "A power primer", Psychol Bull, 112, pp.155~159 (1992)
- Dal Pont G, "Retromolar osteotomy for the correction of prognathism", J Oral Surg Anesth Hosp Dent Serv, 19, pp.42~47 (1961)
- Frost D, "Oral and maxillofacial surgery" (2000), Saunders
- Pan JH, "Transverse and sagittal angulations of proximal segment after sagittal split and vertical ramus osteotomies and their influence on the stability of distal segment", J Formos Med Assoc, 112, pp.244~252 (2013)
- Kim JW, "Proximal segment changes after bilateral sagittal split ramus osteotomy in facial asymmetry patients", J Oral Maxillofac Surg, 73, pp.1592~1605 (2015)
- Choi JH, "A new method for superimposition of CBCT volumes", J Clin Orthod, 44, pp.303~312 (2010)
- 김경아, "Targeted presurgical decompensation in patients with yaw-dependent facial asymmetry", 대한치과교정학회지, 47(3), pp.195~206 (2017), 대한치과교정학회