Conventional surgical-orthodontic approach with double-jaw surgery for a patient with a skeletal Class III malocclusion: Stability of results 10 years posttreatment

2018 ◽  
Vol 154 (1) ◽  
pp. 128-139 ◽  
Author(s):  
Susana Maria Deon Rizzatto ◽  
Luciane Macedo de Menezes ◽  
João Julio da Cunha Filho ◽  
Susiane Allgayer
Keyword(s):  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Jaw Surgery

Surgery-First Approach in Skeletal Class III Malocclusion Treated With 2-Jaw Surgery

2010 ◽  
Vol 21 (2) ◽  
pp. 332-338 ◽  
Author(s):  
Seung-Hak Baek ◽  
Hyo-Won Ahn ◽  
Yoon-Hee Kwon ◽  
Jin-Young Choi
Keyword(s):  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Surgery First ◽  
Jaw Surgery

scholarly journals Stability Factors After Double-Jaw Surgery in Class III Malocclusion

2008 ◽  
Vol 78 (6) ◽  
pp. 1141-1152 ◽  
Author(s):  
Manuela Mucedero ◽  
Antonella Coviello ◽  
Tiziano Baccetti ◽  
Lorenzo Franchi ◽  
Paola Cozza
Keyword(s):  
Clinical Trials ◽  
Treatment Strategies ◽  
Control Group ◽  
Quality Level ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Medical Subject Headings ◽  
Method Error ◽  
Skeletal Class ◽  
Jaw Surgery

Abstract Objective: To identify the stability factors of skeletal Class III malocclusion after double-jaw surgery by a systematic review of the literature. Materials and Methods: The survey covered the period from September 1959 to October 2007 and used the MeSH, Medical Subject Headings. The inclusion criteria were stability of bimaxillary surgery of the permanent dentition, adult patients with skeletal Class III malocclusion, a follow-up of at least 12 months, randomized and nonrandomized controlled clinical trials (RCCTs; CCTs), prospective and retrospective studies with and without concurrent untreated as well as normal controls, and clinical trials (CTs) comparing at least two treatment strategies without any untreated or normal control group. Results: The search strategy resulted in 1783 articles. After selection according to the inclusion/ exclusion criteria, 15 articles qualified for the final review analysis. Quality was low in two studies, medium in twelve, and medium/high in one article, which was represented by a RCT (randomized clinical trial). Most of the studies had sufficient sample size, method error analysis, and adequate statistical methods. Thus, the quality level of the studies was sufficient to draw evidence-based conclusions. Conclusions: Surgical correction of skeletal Class III malocclusion after combined maxillary and mandibular procedures appears to be stable for maxillary advancements up to 5 mm and for the correction of presurgical sagittal intermaxillary discrepancies smaller than 7 mm.

scholarly journals The outcome of skeletofacial reconstruction with mandibular rotation for management of asymmetric skeletal class III deformity: A three-dimensional computer-assisted investigation

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ting-Yu Wu ◽  
Rafael Denadai ◽  
Hsiu-Hsia Lin ◽  
Cheng-Ting Ho ◽  
Lun-Jou Lo
Keyword(s):  
Three Dimensional ◽  
Mouth Opening ◽  
Facial Asymmetry ◽  
Computer Assisted ◽  
Rigid Fixation ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Jaw Surgery

Abstract The mandibular proximal ramus segments should be moved and rotated during orthognathic surgery-based skeletofacial reconstruction for the correction of challenging patients with facial asymmetry and malocclusion, but quantitative data regarding this rotation were not sufficient to date. This 3D computer-assisted study measured the proximal ramus segment rotation after 3D simulation-guided two-jaw surgery in patients with facial asymmetric deformity and class III malocclusion (n = 31). Using 3D mandible models and a reliable proximal ramus segment-related plane, angular changes in pitch, roll and yaw directions were measured before and one month after surgery. Significant rotational changes (p < 0.01) were observed in the left and right sides and overall proximal ramus segments after surgery, with absolute differences of 4.1 ± 3.0 (range −7.8 to 6.9), 2.8 ± 2.3 (−8.8 to 5.0), and 2.7 ± 2.4 (−6.6 to 9.9) degrees in pitch, roll, and yaw rotations, respectively. Numbness and mouth opening limiting occurred within the first 6 months after surgery but the patients had an unremarkable long-term postoperative course, with no revisionary surgery required. This study contributes to the multidisciplinary-related literature by revealing that proximal ramus segment rotation and rigid fixation with no postoperative intermaxillary immobilization was practicable in skeletofacial surgery for the successful treatment of asymmetric deformity and class III malocclusion.

Three-dimensional analysis of lip soft tissue changes and related jaw changes in patients with skeletal class III malocclusion and facial asymmetry

2021 ◽  
pp. 1-14
Author(s):  
Wenjie Xu ◽  
Hao Tan ◽  
Xuehuan Meng ◽  
Ye Ming ◽  
Tao Wang ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Orthognathic Surgery ◽  
Three Dimensional ◽  
Facial Asymmetry ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Tissue Changes ◽  
Soft Tissue Changes ◽  
Jaw Surgery

OBJECTIVE: To investigate three-dimensional soft tissue changes of lips and related jaw changes in patients with skeletal class III malocclusion and facial asymmetry using cone-beam computerized tomography (CBCT). METHOD: This study included 46 CBCT scans of patients with aforementioned character before (T1) and 6–12 months after orthognathic surgery (T2). Subjects were divided into 2 groups according to two types of orthognathic surgery namely, the one-jaw surgery group who underwent bilateral sagittal splint ramus osteotomy (BSSRO) and the two-jaw surgery group who underwent Le Fort I osteotomy and BSSRO. Mimics 19.0 software are used for model reconstruction, landmark location and three-dimensional cephalometric analysis. Descriptive statistics and correlation analyses are used to investigate jaw hard tissue and lip soft tissue changes. RESULTS: In one-jaw group, the mandible shows changes in contour and position (p <  0.05), and the surgery causes changes of lip structure on the deviated side. While in two-jaw group, jaws only show changes in spatial position, and surgery changes contour of bilateral lips and nasolabial angle (p <  0.05). At the same time, lip symmetry increases significantly in both groups postoperatively. CONCLUSIONS: Orthognathic surgery can improve lip aesthetics in patients with skeletal class III malocclusion and facial asymmetry. However, changes induced by two surgical approaches are different. Surgeons should have a clear acquaintance with this difference to deal with different situations.

scholarly journals “Converting a bi-jaw surgery to a single-jaw surgery:” Posterior maxillary dentoalveolar intrusion with microimplants to avoid the need of a maxillary surgery in the surgical management of skeletal Class III vertical malocclusion

2016 ◽  
Vol 6 ◽  
pp. 218-227 ◽  
Author(s):  
Abhisek Ghosh ◽  
Amit Ray
Keyword(s):  
Treatment Outcome ◽  
Surgical Outcome ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mandibular Prognathism ◽  
Skeletal Class ◽  
Number Of Patients ◽  
Bilateral Sagittal Split Osteotomy ◽  
Maxillary Surgery ◽  
Jaw Surgery

The management of a vertical skeletal Class III malocclusion with mandibular prognathism revolves around the protocol of bi-jaw surgery (maxillary LeFort I impaction and mandibular bilateral sagittal split osteotomy with setback). The maxillary surgery not only provides increased stability to the ultimate surgical outcome but also increases the amount by which the mandibular set back can be done, therefore aiding in greater profile improvement. With the need of maxillary surgery almost inevitable in treating such situations, the complexity and the increased discomfort associated with such surgery can never be ignored. Is it at all possible to convert a bi-jaw surgery into a single-jaw surgery with the aid of microimplants? With increasing number of patients being treated with microimplants for anterior openbite and gummy smiles, our idea was to incorporate this novel protocol in treating Class III vertical situations and therefore avoid the need of a maxillary surgery in treating such a situation, together with achieving optimum treatment outcome.

scholarly journals Nine years follow-up after double-jaw surgery for skeletal class III malocclusion correction: a case report

2017 ◽  
Vol 46 ◽  
pp. 326
Author(s):  
S.M. Lima Junior ◽  
F.B.D.J. Boos Lima ◽  
I.S. Holz ◽  
L. Capelozza-Filho ◽  
A.M. dos Santos
Keyword(s):  
Case Report ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Jaw Surgery
Sign in / Sign up

Export Citation Format

Share Document