scholarly journals Dentofacial Changes following Orthognathic Surgery in Seven Mandibular Prognathic Patients with Open Bite and Mandibular Asymmetry.

1998 ◽  
Vol 8 (3) ◽  
pp. 203-212
Author(s):  
TATSUO KAWAMOTO ◽  
NOBUYOSHI MOTOHASHI ◽  
KAZUYOSHI IGARASHI ◽  
TAKASHI ONO ◽  
KEIJI MORIYAMA ◽  
...  
Keyword(s):  
Orthognathic Surgery ◽  
Open Bite ◽  
Mandibular Asymmetry

scholarly journals “Orthognathic Surgery to Improve the Facial Profile: Technique, 3D Planning and Assessment”

2020 ◽  
Author(s):  
Kitae E Park ◽  
Seija Maniskas ◽  
Omar Allam ◽  
Navid Pourtaheri ◽  
Derek M Steinbacher
Keyword(s):  
Orthognathic Surgery ◽  
Skeletal Maturity ◽  
Fat Grafting ◽  
Open Bite ◽  
Class Iii ◽  
Maxillary Hypoplasia ◽  
Delayed Treatment ◽  
3 Dimensional ◽  
Mandibular Asymmetry ◽  
Facial Harmony

Abstract A concave profile with class III malocclusion is most often due to a combination of maxillary hypoplasia and mandibular hyperplasia. Surgical correction entails normalization of jaw positions and is more challenging in the setting of concurrent asymmetry and open bite. Treatment should optimize both facial harmony and occlusion. Orthognathic surgery for class III deformities occurs at skeletal maturity and should address all aspects of the condition while preventing unnecessary emotional stress from delayed treatment. In this article, the authors describe the 3-jaw orthognathic surgery technique to address maxillary hypoplasia, mandibular prognathism, open bite and mandibular asymmetry in a single procedure. The process of preoperative 3-dimensional virtual surgical planning, detailed surgical technique, fat grafting, and a comparison of pre and postoperative 3D aesthetic outcome is presented. Additionally, a retrospective review of postoperative outcomes of 54 patients who received 3-jaw orthognathic surgery is presented as well.

scholarly journals Orthodontic-surgical treatment of class III malocclusion with mandibular asymmetry

2011 ◽  
Vol 22 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Ana Zilda Nazar Bergamo ◽  
Marcela Cristina Damião Andrucioli ◽  
Fábio Lourenço Romano ◽  
José Tarcísio Lima Ferreira ◽  
Mírian Aiko Nakane Matsumoto
Keyword(s):  
Orthognathic Surgery ◽  
Facial Asymmetry ◽  
Open Bite ◽  
Class Iii ◽  
Posterior Crossbite ◽  
Mandibular Asymmetry ◽  
Skeletal Malocclusion ◽  
Facial Esthetics ◽  
The Face ◽  
Maxillary Deficiency

Class III skeletal malocclusion may present several etiologies, among which maxillary deficiency is the most frequent. Bone discrepancy may have an unfavorable impact on esthetics, which is frequently aggravated by the presence of accentuated facial asymmetries. This type of malocclusion is usually treated with association of Orthodontics and orthognathic surgery for correction of occlusion and facial esthetics. This report presents the treatment of a patient aged 15 years and 1 month with Class III skeletal malocclusion, having narrow maxilla, posterior open bite on the left side, anterior crossbite and unilateral posterior crossbite, accentuated negative dentoalveolar discrepancy in the maxillary arch, and maxillary and mandibular midline shift. Clinical examination also revealed maxillary hypoplasia, increased lower one third of the face, concave bone and facial profiles and facial asymmetry with mandibular deviation to the left side. The treatment was performed in three phases: presurgical orthodontic preparation, orthognathic surgery and orthodontic finishing. In reviewing the patient's final records, the major goals set at the beginning of treatment were successfully achieved, providing the patient with adequate masticatory function and pleasant facial esthetics.

Idiopathic condylar resorption in orthodontics

2021 ◽  
Vol 14 (2) ◽  
pp. 82-88
Author(s):  
Salwa El-Habbash ◽  
Timothy McSwiney
Keyword(s):  
Risk Factors ◽  
Orthognathic Surgery ◽  
Mechanical Load ◽  
Systemic Disease ◽  
Treatment Options ◽  
Open Bite ◽  
Mandibular Movement ◽  
Anterior Open Bite ◽  
Surgical Risk ◽  
Multiple Treatment

Condylar resorption (CR) can be categorized into functional and dysfunctional remodelling of the temporomandibular joint (TMJ). The literature describes dysfunctional remodelling of the TMJ as idiopathic condylar resorption (ICR). Idiopathic condylar resorption (ICR) is a well-documented but poorly understood pathological entity that can occur spontaneously or post-orthognathic surgery. It predominantly affects young women, with other risk factors including Class 2 malocclusion with steep mandibular plane angles. It is distinguished by a decreased condylar head volume and ramus height, progressive mandibular retrusion and an anterior open bite. Its aetiology can be categorized into surgical and non-surgical risk factors. These include hormones, systemic disease, trauma, mechanical load and surgical risk factors, such as magnitude and direction of mandibular movement, type of surgical fixation and length of post-operative maxilla-mandibular fixation. ICR is a diagnosis of exclusion, and identified by a combination of clinical, radiographic and haematological findings. Multiple treatment options have been described in the literature, including medical management, orthodontics, orthognathic surgery, TMJ surgery, TMJ and orthognathic surgery combined, and total joint prosthesis reconstruction. Further research is required to better understand the aetiology of ICR and more long-term, controlled, multicentre clinical studies are needed to evaluate the outcomes of surgical and non-surgical management of CR patients. CPD/Clinical Relevance: Idiopathic condylar resorption has many presentations and potential causes that can greatly impact the decisions and outcomes for orthodontic/orthognathic treatment.

Anterior open bite correction with 2-jaw orthognathic surgery

2019 ◽  
Vol 155 (1) ◽  
pp. 108-116.e2 ◽  
Author(s):  
Jae Hyun Park ◽  
Michael Papademetriou ◽  
Carolyn Gardiner ◽  
John Grubb
Keyword(s):  
Orthognathic Surgery ◽  
Open Bite ◽  
Anterior Open Bite

scholarly journals A Case of Severe Open-bite due to Macroglossia Associated with Beckwith-Wiedemann Syndrome Treated by Orthognathic Surgery

2016 ◽  
Vol 26 (3) ◽  
pp. 228-236
Author(s):  
NORIE YOSHIOKA ◽  
AKIYOSHI NISHIYAMA ◽  
TAKUMI TAKAHASHI ◽  
SOICHIRO IBARAGI ◽  
SHOHEI DOMAE ◽  
...  
Keyword(s):  
Orthognathic Surgery ◽  
Open Bite

scholarly journals Prevalence and risk factors of silent obstructive sleep apnea in patients with dentofacial deformities

2021 ◽  
Author(s):  
Rei Jokaji ◽  
Kazuhiro Ooi ◽  
Sayuri Takamichi ◽  
Yusuke Nakade ◽  
Shuichi Kawashiri ◽  
...  
Keyword(s):  
Risk Factors ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Rem Sleep ◽  
Orthognathic Surgery ◽  
Sleep Phase ◽  
Deep Bite ◽  
Mandibular Asymmetry ◽  
Dentofacial Deformities ◽  
Obstructive Sleep

Abstract Objective Prevalence of silent obstructive sleep apnea (OSA) in patients with dentofacial deformities is unknown, although OSA is severe risk of airway obstruction in perioperative orthognathic surgery or complication after surgery. The aim of this study was to investigate prevalence and risk factors of silent OSA in patients with dentofacial deformities. Methods We analyzed 72 patients (24 male, 48 female) with dentofacial deformities without previous OSA symptoms. Polysomnography was performed before orthognathic surgery. Prevalence and risk factors of silent OSA were statistically analyzed as related to Apnea hypopnea index (AHI). Results Mean AHI was 1.6 (range: 0-12.1) /h. Three patients of 72 patients (4.1%) were diagnosed silent OSA. AHI during REM sleep phase 3.7 (0-32.3) was higher than AHI during NREM sleep phase 1.0 (0-9.7). AHI of male patients was higher than that of female. AHI was increased according to high BMI. AHI was higher in deep bite than open bite, edge to edge bite and nomal bite. AHI of mandibular asymmetry cases were higher than that of symmetry cases. Conclusions The prevalence of silent OSA was 4.1%. Obesity, male, deep bite, mandibular asymmetry and REM sleep phase were risk factors of silent OSA.

Orthodontics

2020 ◽  
pp. 121-172
Keyword(s):  
Treatment Planning ◽  
Distraction Osteogenesis ◽  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Open Bite ◽  
Diagnosis And Treatment ◽  
Anterior Open Bite ◽  
Treatment Need ◽  
The Face ◽  
Structured Approach

This chapter discusses the growth of the face, development of the dentition, and prevention and correction of occlusal anomalies, providing a concise overview of the fundamentals of orthodontics. Definitions relevant to orthodontics are outlined as well as a structured approach to orthodontic assessment. The Index of Orthodontic Treatment Need is explained, and its implications highlighted. The chapter also simplifies cephalometrics before detailing the management of increased overbite, anterior open bite, increased overjet, and various other dental and skeletal malocclusions. A further area included in this chapter is orthognathic surgery. The section includes diagnosis and treatment planning in these cases, surgery, and distraction osteogenesis.

scholarly journals Compensatory orthodontic treatment of Angle Class II malocclusion with posterior open bite

2013 ◽  
Vol 18 (5) ◽  
pp. 140-146 ◽  
Author(s):  
José Newton Torres
Keyword(s):  
Orthognathic Surgery ◽  
Previous Treatment ◽  
Class Ii ◽  
Open Bite ◽  
Class Ii Malocclusion ◽  
Present Case Report ◽  
Angle Class Ii ◽  
Angle Class ◽  
Adult Female Patient ◽  
Face Pattern

The present case report addresses the treatment of an Angle Class II malocclusion in an adult female patient, long face pattern, with posterior open bite and dental arches extremely expanded, due to previous treatment. The patient and parents rejection to a treatment with orthognathic surgery led to orthodontic camouflage of the skeletal discrepancies. This clinical case was presented to the Brazilian Board of Orthodontics and Facial Orthopedics (BBO) as one of the requirements to become a BBO Diplomate.

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