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 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.

The Prevalence of Malocclusion Amongst Hong Kong Male Dental Students

1994 ◽  
Vol 21 (1) ◽  
pp. 57-63 ◽  
Author(s):  
Endarra L. K. Tang
Keyword(s):  
Hong Kong ◽  
Orthodontic Treatment ◽  
Dental Students ◽  
First Year ◽  
Class Ii Malocclusion ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Chinese Adults ◽  
Treatment Need ◽  
Chinese Male

The prevalence of malocclusion and treatment need amongst young Chinese adults has not previously been documented in Hong Kong. One-hundred-and-eight Chinese male first year dental students were assessed using the Occlusal Index. It was found that 41·7 per cent of the 108 needed orthodontic treatment and 24·1 per cent needed comprehensive orthodontic treatment to correct major malocclusions. The most commonly occurring feature was crowding (38·9 per cent), followed by Class II malocclusion (21·3 per cent,) and Class III malocclusion (14·8 per cent).

scholarly journals Camouflage treatment for skeletal Class III patient with facial asymmetry using customized bracket based on CAD/CAM virtual orthodontic system:

2019 ◽  
Vol 90 (4) ◽  
pp. 607-618
Author(s):  
Ha Na Sha ◽  
Sun Young Lim ◽  
Sun Mi Kwon ◽  
Jung-Yul Cha
Keyword(s):  
Computer Aided Design ◽  
Orthodontic Treatment ◽  
Facial Asymmetry ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Mandibular Asymmetry ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design

ABSTRACT When considering camouflage orthodontic treatment for Class III malocclusion with skeletal facial asymmetry, it is crucial to preserve the favorable compensated posterior occlusion. Once the inclination of the compensated occlusion is changed during orthodontic treatment, unstable occlusion, such as crossbite or scissor bite may occur. A 23-year-old female patient had anterior spacing with Class III malocclusion and a mandibular asymmetry. A nonsurgical approach was adopted. The treatment objectives were to establish a Class I molar relationship with compensated inclination of the posterior dentition and to correct the midline deviation. To achieve these goals, the computer-aided design/computer-aided manufacturing (CAD/CAM) orthodontic system plus customized brackets was applied, and miniscrews were used to distalize the left mandibular dentition for midline correction. The results suggested that the CAD/CAM-based customized brackets can be efficiently used in camouflage treatment to achieve a correct final occlusion.

scholarly journals ISW for the Treatment of Facial Asymmetry Crossbite Case with Upper Right Lateral Incisor Missing

2012 ◽  
Vol 1 (2) ◽  
pp. 113-117
Author(s):  
Chia-bin SUN ◽  
Jian-hong YU
Keyword(s):  
Orthodontic Treatment ◽  
Medical Center ◽  
Treatment Plan ◽  
Facial Asymmetry ◽  
Functional Class ◽  
Lateral Incisor ◽  
Tini Alloy ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class

ABSTRACT Class III malocclusion with facial asymmetry is difficult to treat with orthodontic treatment without surgery. Skeletal class III malocclusion can be treated with surgery or orthodontic treatment by camouflage. Functional class III malocclusion can be treated perfectly by orthodontic treatment, using the intermaxillary elastics (IME) to correct the jaw relation. Differentially, diagnosing a class III case is important before deciding the treatment plan. We must understand the type of class III malocclusion and then we can make the best choice for the patient. This article reports the treatment of adult class III malocclusion by the improved superelastic TiNi alloy wire (ISW). Using the ISW crossbite arch, coil springs and IME, adequate overbite and overjet were achieved and better facial symmetry was also improved. How to cite this article SUN Cb, YU Jh. ISW for the Treatment of Facial Asymmetry Crossbite Case with Upper Right Lateral Incisor Missing. Int J Experiment Dent Sci 2012;1(2): 113-117. Source of support This work was supported by China Medical University and Medical Center, Taichung City, Taiwan (Grant number: CMU97-080 (2008) to JH YU).

scholarly journals Surgical-orthodontic treatment of Class III malocclusion with agenesis of lateral incisor and unerupted canine

2013 ◽  
Vol 18 (3) ◽  
pp. 94-100 ◽  
Author(s):  
Bruno Boaventura Vieira ◽  
Ana Carolina Meng Sanguino ◽  
Marilia Rodrigues Moreira ◽  
Elizabeth Norie Morizono ◽  
Mírian Aiko Nakane Matsumoto
Keyword(s):  
Orthodontic Treatment ◽  
Facial Asymmetry ◽  
Dental Arch ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mandibular Growth ◽  
Skeletal Class ◽  
Impacted Canine ◽  
The Face ◽  
Prolonged Retention

INTRODUCTION: Orthodontic-surgical treatment was performed in patient with skeletal Class III malocclusion due to exceeding mandibular growth. Patient also presented upper and lower dental protrusion, overjet of -3.0 mm, overbite of -1.0 mm, congenital absence of tooth #22, teeth #13 and supernumerary impaction, tooth #12 with conoid shape and partly erupted in supraversion, prolonged retention of tooth #53, tendency to vertical growth of the face and facial asymmetry. The discrepancy on the upper arch was -2.0 mm and -5.0 mm on the lower arch. METHODS: The pre-surgical orthodontic treatment was performed with extractions of the teeth #35 and #45. On the upper arch, teeth #53, #12 and supernumerary were extracted to accomplish the traction of the impacted canine. The spaces of the lower extractions were closed with mesialization of posterior segment. After aligning and leveling the teeth, extractions spaces closure and correct positioning of teeth on the bone bases, the correct intercuspation of the dental arch, with molars and canines in Angle's Class I, coincident midline, normal overjet and overbite and ideal torques, were evaluated through study models. The patient was submitted to orthognathic surgery and then the post-surgical orthodontic treatment was finished. RESULTS: The Class III malocclusion was treated establishing occlusal and facial normal standards.

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