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Orthognathic surgery

Risa Usumi-Fujita, Koichi Nakakuki, Koichi Fujita, Machiko Kosugi, Ikuo Yonemitus, Eiji Fukuyama, Takashi Ono
Facial asymmetry can be caused by unilateral condylar hyperplasia. In such cases, it may be difficult to achieve symmetry since there is dentoalveolar compensation on the affected side, and the occlusal cant does not correspond to the frontal mandibular deviation. In the case presented, surgical orthodontic treatment and orthognathic surgery planning was accomplished for a patient with facial asymmetry due to condylar hyperplasia. The surgical plan was devised with particular attention to the severe dentoalveolar compensation...
March 21, 2018: Angle Orthodontist
M Raffaini, R Cocconi, G Spinelli, T Agostini
BACKGROUND: The purpose of the present study was to assess the safety and efficacy of both functional intranasal procedures and cosmetic rhinoplasty combined with bimaxillary surgery. METHODS: The author executed a retrospective cohort study derived from patients who underwent combined rhinoseptoplasty and bimaxillary surgery at a private practice setting (Face Surgery Center, Parma, Italy) between April 2006 and 2015 by a single surgeon. The minimum follow-up was 12 months...
March 20, 2018: Aesthetic Plastic Surgery
Jung-Eun Park, Seon-Hye Bae, Young-Jun Choi, Won-Cheul Choi, Hye-Won Kim, Ui-Lyong Lee
[This corrects the article DOI: 10.1186/s40902-017-0120-6.].
December 2018: Maxillofacial Plastic and Reconstructive Surgery
K Mitsimponas, S Mehmet, R Kennedy, K Shakib
Idiopathic condylar resorption is a well-documented but poorly-understood pathological entity that predominantly affects young women, particularly during the pubertal growth spurt. Several theories have been proposed to explain its aetiopathogenesis, the most favoured of which are the hormonally mediated theory, the theory of avascular necrosis, and the dysfunctional remodelling theory. The condition is diagnosed by a combination of clinical and radiological data as well as elements from the patient's history...
March 16, 2018: British Journal of Oral & Maxillofacial Surgery
Artur Fahradyan, Erik M Wolfswinkel, Noreen Clarke, Stephen Park, Michaela Tsuha, Mark M Urata, Jeffrey A Hammoudeh, Dennis-Duke R Yamashita
BACKGROUND: The maxillary horizontal relapse following Le Fort I advancement has been estimated to be 10% to 50%. This retrospective review examines the direct association between the amounts of maxillary advancement and relapse. We hypothesize that the greater the advancement, the greater the relapse amount. METHOD: Patients with class III skeletal malocclusion underwent maxillary advancement with either a Le Fort I or a Le Fort I with simultaneous mandibular setback (bimaxillary surgery) from 2008 to 2015...
April 2018: Cleft Palate-craniofacial Journal
Ji Sun Baek, Kun Hae Kim, Jung Hye Lee, Hye Sun Choi
PURPOSE: To assess the ophthalmologic complications after oculofacial plastic and esthetic surgeries, including their incidence and management. METHODS: A retrospective study was performed on 110 patients who presented with ocular complications followed by oculofacial plastic and esthetic surgeries from January 2014 to December 2015. The incidence and management of complications after each surgery or procedure were analyzed. RESULTS: For lower eyelid blepharoplasty, the common complications were chemosis and lower eyelid ectropion...
March 16, 2018: Journal of Craniofacial Surgery
Jeong-Hwa Jeong, Sung-Hwan Choi, Kee-Deog Kim, Chung-Ju Hwang, Sang-Hwy Lee, Hyung-Seog Yu
PURPOSE: The aim of the present study was to compare the long-term stability of bimaxillary surgery using an intraoral vertical ramus osteotomy (IVRO) with and without presurgical orthodontic treatment. MATERIALS AND METHODS: The present retrospective study included 31 consecutive patients with skeletal Class III malocclusions who had undergone bimaxillary surgery (Le Fort I osteotomy and bilateral IVRO). Patients were divided into 2 groups based on treatment type: pre-orthodontic orthognathic surgery (POGS; n = 17) and conventional surgery with presurgical orthodontic treatment (CS; n = 14)...
February 20, 2018: Journal of Oral and Maxillofacial Surgery
Jinyuan Guo, Tongyue Wang, Jeong Joon Han, Seunggon Jung, Min-Suk Kook, Hong-Ju Park, Hee-Kyun Oh
OBJECTIVES: The aim of this study was to evaluate corrective outcome and transverse stability after orthognathic surgery via a surgery-first approach (SFA) in mandibular prognathism with and without facial asymmetry using 3-dimensional analysis. STUDY DESIGN: Twenty-nine patients who received mandibular setback surgery using SFA were divided into 2 groups according to the menton deviation (4 mm): symmetry group (n = 17) and asymmetry group (n = 12). Using computed tomography images obtained before (T0), immediately after (T1), and 6 months after (T2) surgery, time-dependent changes in variables related to facial asymmetry, including maxillary height, ramal length, frontal and lateral ramal inclination, mandibular body length, and mandibular body height, were evaluated...
February 5, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Valthierre Nunes de Lima, Leonardo Perez Faverani, Joel Ferreira Santiago, Celso Palmieri, Osvaldo Magro Filho, Eduardo Piza Pellizzer
The purpose of this study was to perform a systematic review of morphological alterations in the condyles after orthographic surgery involving a sagittal split ramus osteotomy (SSRO), with or without surgery on the maxilla. Searches were performed on three databases and registered in the PROSPERO. The selected studies fulfilled the criteria established by the following PICO model: (1) population: individuals with skeletal dentofacial deformities (class II or III facial patterns), without asymmetry; (2) intervention: orthognathic surgery for mandibular setback using an SSRO, with or without a Le Fort I osteotomy, and fixed with bicortical screws or plates and screws; (3) comparison: orthognathic surgery for mandibular advancement using an SSRO, with or without a Le Fort I osteotomy, and fixed with plates and screws or bicortical screws; and (4) outcome: condylar resorption rate and relapse...
February 21, 2018: Journal of Cranio-maxillo-facial Surgery
Robson Almeida de Rezende, Daniela Nascimento Silva, Lúcio Frigo
To evaluate low-level laser therapy (LLLT) as an adjunct to enhance postoperative mouth opening after orthognathic surgery. Prospective clinical trial of 82 patients allocated into an intervention group (laser, LG) and a control group (no laser, CG) and subgroups according to the procedure type : (1) surgically assisted rapid maxillary expansion (SARME); (2) maxillary surgery; (3) mandibular surgery; or (4) bimaxillary surgery. LG patients received LLLT immediately after surgery and every 24 h thereafter for 3 days, using a gallium-aluminum-arsenide (GaAlAs) diode laser (780 nm, 28 spots, 14 on each side of the face, output power 2 J/spot)...
March 12, 2018: Lasers in Medical Science
Giampietro Farronato, Guido Galbiati, Luca Esposito, Carmen Mortellaro, Federica Zanoni, Cinzia Maspero
OBJECTIVE: This article describes a virtual protocol designed to optimize surgical orthodontic diagnosis and treatment plan. METHODS: A total of 15 patients undergoing orthodontic-surgical treatment have been analyzed with a presurgical virtual three-dimensional (3D) treatment planning, which involves 9 steps. All the patients have been treated with the use of occlusal splint guides projected on the basis of the surgical and orthodontic visualized treatment objective ...
March 8, 2018: Journal of Craniofacial Surgery
Woo Shik Jeong, Jang Yeol Lee, Jong Woo Choi
The surgery-first approach (SFA) is a new paradigm in orthognathic surgery. In our experience over the last 10 years, SFA, particularly for the correction of the class III dentofacial deformity and facial asymmetry, has demonstrated high success rates without any major complications. However, many craniofacial surgeons remain concerned about the skeletal stability of SFA. In the present study, the authors aimed to compare the traditional and SFA with regard to the long-term outcomes of vertical skeletal stability using large-scale data...
March 8, 2018: Journal of Craniofacial Surgery
Akın Buğra Pişiren, Ayça Arman-Özçırpıcı, Nilüfer İrem Tunçer
PURPOSE: The aim of this survey study was to assess the influence of chin prominence on the perception of profile esthetics between genders by orthodontists, oral and maxillofacial surgeons (OMF), plastic surgeons, orthognathic patients and laypersons. MATERIALS AND METHODS: A total of 731 observers participated in this study. Profile photographs of one female and one male showing ideal soft tissue values, skeletal class 1 relationship, and normodivergent facial type were modified with photo editing program (Adobe Photoshop CC software), so that the chin was moved posteriorly up to 10 mm and anteriorly up to 8 mm at 2-mm intervals...
January 31, 2018: Journal of Cranio-maxillo-facial Surgery
Chunmiao Jiang, Yinghong Liu, Qian Cheng, Wei He, Shanbao Fang, Tingting Lan, Jun Wang
Patients with bimaxillary protrusion may have an unattractive profile with a retruded chin contour. Correction of the severely protrusive anterior alveolar bone and teeth combined with a moderate open bite without orthognathic surgery can be challenging. This case report describes the orthodontic treatment of a woman with severe bimaxillary protrusion and a moderate open bite. Excellent chin morphology and facial appearance were obtained with the extraction of 4 first premolars and 4 third molars, and total distalization of both arches with 4 mini-implants, one in each quadrant between the second premolar and the first molar...
March 2018: American Journal of Orthodontics and Dentofacial Orthopedics
Michelle Yun-Chia Ku, Lun-Jou Lo, Min-Chi Chen, Ellen Wen-Ching Ko
INTRODUCTION: The purpose of this study was to predict the need for orthognathic surgery in patients with unilateral cleft lip and palate (UCLP) in the early permanent dentition. METHODS: In this retrospective cohort study, we included 61 patients with complete UCLP (36 male, 25 female; mean age, 18.47 years; range, 16.92-26.17 years). The subjects were grouped into an orthognathic surgery group and a nonsurgery group at the time of growth completion. Lateral cephalograms obtained at the age of 11 years were analyzed to compare the 2 groups...
March 2018: American Journal of Orthodontics and Dentofacial Orthopedics
Michael R Bykowski, Amber Hill, Catherine Garland, William Tobler, Joseph E Losee, Jesse A Goldstein
BACKGROUND: Although rare, pseudoaneurysms (PA) can develop following Le Fort I osteotomy and lead to life-threatening hemorrhage. However, the typical presentation of a PA following a Le Fort I osteotomy is not well characterized. Evidence-based guidelines are not currently available for evaluation of PA following Le Fort I osteotomy. METHODS: A case report is presented of a 27-year-old man who underwent Le Fort I advancement and subsequently developed a bleeding PA...
March 1, 2018: Journal of Craniofacial Surgery
Willian Saranholi da Silva, Ana Lúcia Pompéia Fraga de Almeida, Maria Giulia Rezende Pucciarelli, Karin Hermana Neppelenbroek, Juliana Dreyer da Silva de Menezes, Renato Yassutaka Faria Yaedú, Thais Marchini Oliveira, Flavia M R N Cintra, Simone Soares
This retrospective observational study aimed to evaluate and identify the relapse rate after orthognathic surgery for maxillary advancement (Le Fort I maxillary osteotomy) in oral cleft patients through digitized cephalograms and 3D dental models, following 2 years. Lateral cephalograms and dental casts of 17 individuals, enrolled in Orthodontics Department in Hospital of Rehabilitation of Craniofacial Anomalies, were carried out. The digital cephalometric tracings were evaluated in: T1-before surgery, T2-immediate after surgery, T3-6-month to 1-year after surgery...
March 1, 2018: Odontology
Cory M Resnick, Kimberly M Daniels, Maryann Vlahos
OBJECTIVE: Cephalometric analyses have limited utility in planning maxillary sagittal position for orthognathic surgery. In Six Elements of Orofacial Harmony, Andrews quantified maxillary position relative to forehead projection and angulation and proposed an ideal relationship. The purpose of this study was to investigate the ability of this technique to predict esthetic sagittal maxillary position. STUDY DESIGN: Survey study including a male and female with straight facial profiles, normal maxillary incisor angulations, and Angle's Class I...
February 1, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Tahsin Tepecik, Ümit Ertaş, Metin Akgün
PURPOSE: The aim of this study was to examine the effects of bimaxillary orthognathic surgery on pharyngeal airway space (PAS) and respiratory function during sleep. MATERIALS AND METHODS: The subjects were 21 patients with class III skeletal relationship, and all of the patients underwent bimaxillary surgery (Le Fort I advancement and bilateral sagittal split ramus setback osteotomies simultaneously). Pharyngeal volumes of nasopharyngeal (V-NPA), retropalatal (V-RPA), retrolingual (V-RLA), oropharyngeal (V-ORO) and total pharyngeal airways (V-TOT); minimum axial areas of retropalatal (MA-RPA), retrolingual (MA-RLA) and oropharyngeal airways (MA-ORO); and position of the hyoid were studied in order to detect dimensional PAS changes using cone-beam computed tomography (CBCT) with Dolphin 11...
February 2, 2018: Journal of Cranio-maxillo-facial Surgery
Y K Lian, A M C Hsieh, M S Tsai, H R Jiang, C Y Yen, Y J Hsia, S Y Lee
OBJECTIVES: To compare treatment duration in skeletal Class III malocclusion patients managed with a 2-step treatment (surgery-first approach, SFA) and conventional 3-step treatment, and to compare stability of surgical outcomes between segmentation and non-segmentation in the 2-step treatment group. SETTING AND SAMPLE POPULATION: The sample population consisted of 37 patients who completed orthognathic surgery (OGS) and orthodontic correction at the Charm Aesthetic Surgery Clinic (Taipei, Taiwan) between 2012 and 2015...
March 1, 2018: Orthodontics & Craniofacial Research
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