STABILITY OF THE SURGERY-ONLY ORTHOGNATHIC APPROACH IN CLASS III PATIENTS WITH MAXILLARY RETROGNATHIA
Introduction: The aim was to compare the stability of the surgery-only approach (SOA, indicating surgery without orthodontics) to the orthodontics-first approach (OFA; orthodontics followed by surgery) in patients with dentofacial deformities.
Methods: All ten patients who underwent SOA and 10 OFA were included. Cephalometric radiographs were taken before surgery (T0), and six months after SOA or OFA(T2). The actual maxillary movement was measured intraoperatively (T1). The difference between T2-T0 and T1 is accepted as relapse. Each cephalometric film was analyzed using specialized software and the stability of actual advancement was analyzed.
Results: Difference of relapse amount between SOA and OFA groups was statistically significant (p=0.016).
Conclusion: Although the stability of SOA was less than OFA, the amount of advancement was higher in SOA.
Baek SH, Ahn HW, Kwon YH, Choi JY. Surgery-first approach in skeletal class III malocclusion treated with 2-jaw surgery: evaluation of surgical movement and postoperative orthodontic treatment. J Craniofac Surg. 2010; 21(2):332–8.
Peiró-Guijarro MA., Guijarro-Martínez R., Hernández-Alfaro F. Surgery first in orthognathic surgery: A systematic review of the literature. Am J Orthod Dentofacial Orthop. 2016; 149(4):448-62.
Choi JW, Lee JY, Yang SJ, Koh KS. The reliability of a surgery-first orthognathic approach without presurgical orthodontic treatment for skeletal class III dentofacial deformity. Ann Plast Surg. 2015; 74(3):333-41.
Proffit WR, Phillips C, Prewitt JW, Turvey TA. Stability after surgical-orthodontic correction of skeletal Class III malocclusion. 2. Maxillary advancement. Int J Adult Orthodon Orthognat Surg. 1991; 6(2):71-80.
Chen KJ, Chen YC, Cheng JH, Chen CM, Tseng YC. Factors related to skeletal relapse in the two-jaw surgery treatment of mandibular prognathism. J Stomatol Oral Maxillofac Surg. 2018;119(2):113–7.
Rhee CH, Choi YK, Kim YI, Kim SS, Park SB, Son WS. Correlation between skeletal and dental changes after mandibular setback surgery-first orthodontic treatment: Cone-beam computed tomography-generated half-cephalograms. Korean J Orthod. 2015;45(2):59–65.
Choi SH, Hwang CJ, Baik HS, Jung YS, Lee KJ. Stability of pre-orthodontic orthognathic surgery ssing intraoral vertical ramus osteotomy versus conventional treatment. J Oral Maxillofac Surg. 2016;74(3):610–9.
Lo SH, Chen YA, Yao CF, Liao YF, Chen YR. Is skeletal stability after bimaxillary surgery for skeletal class III deformity related to surgical occlusal contact?. Int J Oral Maxillofac Surg. 2019;48(10):1329–36.
Larsen AJ, Van Sickels JE, Thrash WJ. Postsurgical maxillary movement: a comparison study of bone plate and screw versus wire osseous fixation. Am J Orthod Dentofacial Orthop. 1989; 95(4):334-43.
- There are currently no refbacks.
Copyright (c) 2020 Emrah Dilaver
This work is licensed under a Creative Commons Attribution 4.0 International License.