Clinical Application of the Surgery-First Approach to Facial Asymmetry

2021 ◽  
pp. 267-295
Author(s):  
Jong-Woo Choi ◽  
Jang Yeol Lee
Keyword(s):  
Clinical Application ◽  
Facial Asymmetry ◽  
Surgery First

scholarly journals Cone-beam computed tomography evaluation on the condylar displacement following sagittal split ramus osteotomy in asymmetric setback patients: Comparison between conventional approach and surgery-first approach

2017 ◽  
Vol 87 (5) ◽  
pp. 733-738 ◽  
Author(s):  
Min-Hee Oh ◽  
Hyeon-Shik Hwang ◽  
Kyung-Min Lee ◽  
Jin-Hyoung Cho
Keyword(s):  
Computed Tomography ◽  
Correlation Analysis ◽  
Cone Beam Computed Tomography ◽  
Facial Asymmetry ◽  
Three Dimensions ◽  
Conventional Group ◽  
Cone Beam ◽  
Sagittal Split Ramus Osteotomy ◽  
Surgery First ◽  
Condylar Displacement

ABSTRACT Objective: To compare the condylar displacement following sagittal split ramus osteotomy (SSRO) in asymmetric setback patients between the conventional approach and surgery-first approach and to determine whether the condylar displacement is affected by asymmetric setback in SSRO patients. Materials and Methods: This was a retrospective study. The subjects consisted of patients with facial asymmetry who underwent SSRO and had cone-beam computed tomography taken before and 1 month after surgery. They were allocated into the conventional (n = 18) and surgery-first (SF) groups (n = 20). Descriptive, independent t-tests and Pearson correlation analysis were computed. Results: The amount of condylar displacement in x-, y-, and z-directions and Euclidean distance showed no statistically significant differences between the conventional and SF groups. Comparing the postoperative condylar position with the preoperative position, the condylar displacement occurred in posterior (P < .05) and downward (P < .05) directions in both groups except on the deviated side in the conventional group. The condylar displacement occurred in a posterior (P < .05) direction on the deviated side of the conventional group. However, the condylar displacement in three dimensions showed no statistically significant differences between the two groups. In the correlation analysis, the condylar displacement in both the deviated and contralateral sides showed no significant correlation with asymmetric setback in either group. Conclusion: The condylar displacement in three dimensions and the distance of condylar displacement in SSRO patients with facial asymmetry showed no significant difference between conventional and SF groups. Condylar displacement was not associated with asymmetric setback.

scholarly journals Current concept of the surgery-first orthognathic approach

2021 ◽  
Vol 48 (2) ◽  
pp. 199-207
Author(s):  
Jong-Woo Choi ◽  
Jang-Yeol Lee
Keyword(s):  
Orthodontic Treatment ◽  
Facial Asymmetry ◽  
Review Article ◽  
Current Status ◽  
Class Ii Malocclusion ◽  
Class Iii ◽  
Clinical Experiences ◽  
Class Iii Malocclusion ◽  
Advantages And Disadvantages ◽  
Surgery First

Traditional orthognathic surgery has long been performed after presurgical orthodontic treatment. Despite some concerns, the surgery-first orthognathic approach (SFOA) or surgery-first approach (SFA) without presurgical orthodontic treatment has gradually gained popularity. In recent years, several articles dealing with the concepts of the SFA have been published worldwide. However, the SFA has not yet been standardized, and many surgeons use slightly different protocols and concepts. This review article discusses the beginning and evolution of the SFA and its current concepts, including some opinions based on the authors’ clinical experiences over the last 15 years. According to recent investigations, the SFA could be applied effectively in several situations including class III malocclusion, class II malocclusion, and facial asymmetry. However, debate on the SFA continues and many issues remain to be resolved. This review article addresses the current issues regarding the SFOA, including its advantages and disadvantages, as well as its indications and contraindications. The authors summarize various aspects of the SFA and expect that this review article will help surgeons and orthodontists better understand the current status of the SFA.

scholarly journals Facial asymmetry correction: From conventional orthognathic treatment to surgery-first approach

2019 ◽  
Vol 13 (4) ◽  
pp. 311-320 ◽  
Author(s):  
Tahereh Hosseinzadeh Nik ◽  
Elaheh Gholamrezaei ◽  
Mohammad Ali Keshvad
Keyword(s):  
Tooth Movement ◽  
Three Dimensional ◽  
Orthodontic Tooth Movement ◽  
Facial Asymmetry ◽  
Class Iii ◽  
Surgery First ◽  
Condylar Hyperplasia ◽  
Regional Acceleratory Phenomenon ◽  
Bimaxillary Surgery ◽  
Dimensional Assessment

The surgery-first approach (SFA), which proceeds without presurgical orthodontic treatment, is assumed to shorten the treatment course because the direction of post-surgical orthodontic tooth movement conforms to the normal muscular forces. Moreover, the regional acceleratory phenomenon (RAP), evoked by surgery, helps in tooth alignment and compensation in a faster way. Although SFA has definite advantages, especially in class III individuals, there is a lack of data about its indications in patients with facial asymmetry. In this article, we reviewed recently published articles on the treatment of asymmetric patients using the SFA. Different aspects, including the three-dimensional assessment of stability in different planes, approaches for fabrication of a surgical splint, predictability of the results, skills needed for bimaxillary surgery, indications as the treatment of choice for condylar hyperplasia, and combination with distraction osteogenesis in candidates with severe asymmetries were found to be the main topics discussed for patients presenting with facial asymmetry

scholarly journals Improved Superelastic NiTi wire for the Treatment of Adult Skeletal Class III Malocclusion in a Surgery-first Case

2016 ◽  
Vol 5 (2) ◽  
pp. 133-138
Author(s):  
Jian-hong YU ◽  
Ya-Yu Tsai ◽  
Chih-Yu Fang
Keyword(s):  
Facial Asymmetry ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Niti Wire ◽  
Skeletal Class ◽  
Mandibular Setback ◽  
First Case ◽  
Bilateral Sagittal Split Osteotomy ◽  
Surgery First ◽  
Tokyo Medical

ABSTRACT A 19-year-old female came to our department with the chief complaint of facial asymmetry. Clinical examination showed skeletal class III relationship with mandibular prognathism, large reverse overjet, lower right mild crowding, and left hemimandibular elongation. After a thorough discussion with the patient, she accepted the proposal of orthognathic surgery and mandibular setback by bilateral sagittal split osteotomy (BSSRO), and therefore, tooth extraction was performed for 18, 28, 38, and 48 before the surgery. An improved superelastic Ti-Ni alloy wire (ISW wire), developed by Tokyo Medical and Dental University, was then used to facilitate the correction of lower crowding. Involved mechanism included intermaxillary elastics for a better interdigitation and jaw relationships. Adequate overbite and overjet were achieved after treatment completion. How to cite this article Fang C-Y, Tsai Y-Y, Yu J-H. Improved Superelastic NiTi wire for the Treatment of Adult Skeletal Class III Malocclusion in a Surgery-first Case. Int J Experiment Dent Sci 2016;5(2):133-138.

73 Laparoscopic 3D solo-surgery: First clinical application of a robotic-controlled stereoscopic high definition optical system (EinsteinVision)

2012 ◽  
Vol 11 (1) ◽  
pp. e73-e73a
Author(s):  
A. Miernik ◽  
M. Schoenthaler ◽  
U. Wetterauer ◽  
U.T. Hopt ◽  
T. Knoll ◽  
...  
Keyword(s):  
Clinical Application ◽  
Optical System ◽  
High Definition ◽  
Solo Surgery ◽  
Surgery First

Surgery first approach and condilectomy for management of facial asymmetry

2019 ◽  
Vol 48 ◽  
pp. 125
Author(s):  
B. Mejia ◽  
S. Morales ◽  
A. Forero ◽  
M. Casale ◽  
J. Franco
Keyword(s):  
Facial Asymmetry ◽  
Surgery First
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