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Orthognathic

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https://www.readbyqxmd.com/read/29053658/low-level-laser-therapy-for-treatment-of-neurosensory-disorders-after-orthognathic-surgery-a-systematic-review-of-randomized-clinical-trials
#1
M-A-V Bittencourt, L-R Paranhos, P-R-S Martins-Filho
BACKGROUND: Low-level laser has been widely used in Dentistry and many studies have focused on its application in oral surgeries. This study was conducted with the aim of searching for scientific evidence concerning the effectiveness of laser to reduce pain or paresthesia related to orthognathic surgery. MATERIAL AND METHODS: An electronic search was performed in PubMed, Scopus, Science Direct, LILACS, SciELO, CENTRAL, Google Scholar, OpenGrey, and ClinicalTrials...
October 20, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29042168/autonomous-bone-reposition-around-anatomical-landmark-for-robot-assisted-orthognathic-surgery
#2
Sang-Yoon Woo, Sang-Jeong Lee, Ji-Yong Yoo, Jung-Joon Han, Soon-Jung Hwang, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Soon-Chul Choi, Won-Jin Yi
The purpose of this study was to develop a new method for enabling a robot to assist a surgeon in repositioning a bone segment to accurately transfer a preoperative virtual plan into the intraoperative phase in orthognathic surgery. We developed a robot system consisting of an arm with six degrees of freedom, a robot motion-controller, and a PC. An end-effector at the end of the robot arm transferred the movements of the robot arm to the patient's jawbone. The registration between the robot and CT image spaces was performed completely preoperatively, and the intraoperative registration could be finished using only position changes of the tracking tools at the robot end-effector and the patient's splint...
September 19, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29040144/surgical-treatment-of-dentofacial-deformities-caused-by-juvenile-idiopathic-arthritis
#3
Patricia Stoor, Zlatan Hodzic, Sirpa Arte
The purpose of our retrospective study was to evaluate the results of orthognathic treatment, distraction osteogenesis, and/or prosthetic reconstruction of the temporomandibular joints in patients with juvenile idiopathic arthritis (JIA).Twelve patients with severely affected temporomandibular joints (TMJs) and reduced ramus height were treated with mandibular advancement with orthognathic surgery (11) and additional bilateral or unilateral mandibular ramus distraction (3) or additional bilateral or unilateral prosthetic reconstruction of the TMJ (3)...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29031529/enhanced-surgical-outcomes-in-patients-with-skeletal-class-iii-facial-asymmetry-by-3-dimensional-surgical-simulation
#4
Ellen Wen-Ching Ko, Cheng-Hui Lin, Ying-An Chen, Yu-Ray Chen
PURPOSE: With the advance of image fusion techniques, the creation of 3-dimensional (3D) virtual head and 3D surgical simulations has provided previews of surgical procedures. The aim of this study was to investigate the surgical outcomes in patients receiving orthognathic surgery (OGS) with the guidance of 3D computer-assisted surgical simulation. PATIENTS AND METHODS: The study included 34 consecutive patients (15 men and 19 women; age, 18.1 to 33.0 yr) with skeletal Class III facial asymmetry who underwent bimaxillary OGS...
September 19, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29030276/dental-occlusal-surface-supported-titanium-guide-to-assist-cutting-and-drilling-in-mandibular-bilateral-sagittal-split-osteotomy
#5
Charles Savoldelli, Clair Vandersteen, Olivier Dassonville, Joseph Santini
INTRODUCTION: Cutting and drilling guides manufactured using computer-aided design/computer-aided manufacturing (CAD/CAM) technologies have attracted increasing interest in orthognathic surgery, particularly in complex cases. The development of these guides requires virtual surgery planning and three-dimensional modelling before they can be printed in titanium, polyamide, or resin. We report the use of a personalized titanium device to assist bilateral sagittal split osteotomy (BSSO) with or without genioplasty combined with individual implants for repositioning and fixation...
October 10, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29029997/correlation-of-general-and-oral-health-related-quality-of-life-in-malocclusion-patients-treated-with-a-combined-orthodontic-and-maxillofacial-surgical-approach
#6
Johannes Alexander Tamme, Michael Rohnen, Volker Gaßling, Robert Ciesielski, Helge Fischer-Brandies, Jörg Wiltfang, Bernd Koos
PURPOSE: The aim of the study was to collect information about the oral health-related quality of life (OHRQoL) after combined orthodontic and maxillofacial surgical treatment as well as its influence on health-related quality of life (HRQoL). MATERIALS AND METHODS: The study includes data from a total of 130 subjects, 65 of whom (21 male, 44 female, mean age at baseline: 24 years, mean age at the time of surgery: 26 years) were compared with control subjects matched on the basis of gender and age...
August 31, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29024621/is-atypical-swallowing-associated-with-relapse-in-orthognathic-patients-a-retrospective-study-of-256-patients
#7
Jean-Marc Foletti, Gregory S Antonarakis, Camille Galant, Delphine S Courvoisier, Paolo Scolozzi
PURPOSE: To determine the association of atypical swallowing (AS) with relapse in patients undergoing combined orthodontic and orthognathic treatment. MATERIALS AND METHODS: In this retrospective cohort study, the clinical data of all patients who underwent combined surgical and orthodontic treatment from 1998 through 2015 at the University Hospital of Geneva (Geneva, Switzerland) were reviewed. The primary outcome variables were 1) AS and 2) post-treatment relapse...
September 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29023297/evaluation-of-sinonasal-change-after-lefort-i-osteotomy-using-cone-beam-computed-tomography-images
#8
Seung Woo Baeg, Yun Pyo Hong, Dong Hyun Cho, Jeong Keun Lee, Seung Il Song
Orthognathic surgery including Le Fort I osteotomy involves changes in the nasal septum and maxillary sinus. This study assesses nasal septum changes after Le Fort I osteotomy using cone beam computed tomography images and evaluates mucosal changes in the maxillary sinus after the surgery.This was a retrospective study of 33 patients who underwent orthognathic surgery including Le Fort I osteotomy. To assess the maxillary sinus, changes in the mucosa of the maxillary sinus were analyzed by volume and geometry...
October 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29019277/3d-cbct-morphometric-assessment-of-mental-foramen-in-arabic-population-and-global-comparison-imperative-for-invasive-and-non-invasive-procedures-in-mandible
#9
Mohammad Khursheed Alam, Selham Alhabib, Bader K Alzarea, Muhammad Irshad, Saif Faruqi, Mohd G Sghaireen, Santosh Patil, Rehana Basri
BACKGROUND: Recent advancements in clinical dentistry have increased the possibilities of surgical procedures in the mental region. A detailed knowledge of mental foramen (MF) morphometry is significant to preserve integrity of the mental nerve trunk in surgical interventions such as orthognathic surgery, implant placement and anaesthetic block. OBJECTIVE: The aim of this study was to determine the most accurate position of the mental foramen by using new assessment approach in a sample of dental patients presenting to the specialist dental clinic, College of Dentistry, Al Jouf University, Saudi Arabia...
October 11, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29016682/effects-of-mandibular-setback-with-or-without-maxillary-advancement-osteotomies-on-pharyngeal-airways-an-overview-of-systematic-reviews
#10
Su Keng Tan, Wai Keung Leung, Alexander Tin Hong Tang, Roger A Zwahlen
BACKGROUND: Mandibular setback osteotomies potentially lead to narrowing of the pharyngeal airways, subsequently resulting in post-surgical obstructive sleep apnea (OSA). OBJECTIVE: To summarize current evidence from systematic reviews that has evaluated pharyngeal airway changes after mandibular setback with or without concomitant upper jaw osteotomies. METHODOLOGY: PubMed, EMBASE, Web of Science, and Cochrane Library databases were searched with no restriction of language or date...
2017: PloS One
https://www.readbyqxmd.com/read/28991811/vertical-maxillary-measurements-using-a-virtual-external-reference-point-in-orthognathic-surgery-technical-innovation
#11
Sebastián Espinosa S
It is extremely important to achieve vertical position of the upper jaw in orthognathic surgery. A common method used is measuring distances at surgery using external reference points. Unfortunately, surgeons have been making mistakes when calculating the goal distance of our external reference systems. A possible explanation is that when the author measure the baseline and goal vertical distances, the author usually do not consider the variations produced by the triangulation effect generated due the horizontal or/and transverse movements of the maxilla...
October 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28988100/-silent-sleep-apnea-in-dentofacial-deformities-and-prevalence-of-daytime-sleepiness-after-orthognathic-and-intranasal-surgery
#12
Jeffrey C Posnick, Anayo Adachie, Neeru Singh, Elbert Choi
PURPOSE: The purposes of this study were to determine the occurrence of undiagnosed "silent" obstructive sleep apnea (OSA) in dentofacial deformity (DFD) patients at initial surgical presentation and to report on the level of daytime sleepiness in DFD patients with OSA and chronic obstructive nasal breathing (CONB) after undergoing bimaxillary, chin, and intranasal surgery. MATERIALS AND METHODS: A retrospective cohort study of patients with a bimaxillary DFD and CONB was implemented...
September 11, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28987226/controversies-in-orthognathic-surgery
#13
REVIEW
Daniel E Perez, Aaron Liddell
Controversy has accompanied orthognathic surgery since its adaptation for the correction of dentofacial deformities. With the development of less invasive and less morbid osteotomy designs, questions regarding overall osteotomy stability have abounded. The transition from prolonged intermaxillary fixation and wire osteosynthesis to rigid internal fixation has spurred questions regarding the most effective fixation technique, and challenged previously accepted hierarchies of stability. These questions represent only the surface of a sea of debate and discussion, as measures have been taken to optimize patient outcome, minimize patient morbidity, and maximize operating room productivity...
November 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28980512/the-accuracy-of-maxillary-positioning-using-digital-model-planning-and-3d-printed-wafers-in-bimaxillary-orthognathic-surgery
#14
Richard R J Cousley, Mark Bainbridge, P Emile Rossouw
OBJECTIVE: Orthognathic wafers may be made using digital model movements and CAD-CAM technology. This paper analysed the accuracy of maxillary movements using this new process. DESIGN: Retrospective study of pre and post-operative cephalograms. PARTICIPANTS: Thirty consecutive orthognathic patients undergoing bimaxillary osteotomies in a UK hospital. METHODS: Jaw movements were planned using cephalometric and Orthoanalyzer™ software...
October 5, 2017: Journal of Orthodontics
https://www.readbyqxmd.com/read/28977689/resorbable-versus-titanium-plates-for-orthognathic-surgery
#15
REVIEW
Anirudha Agnihotry, Zbys Fedorowicz, Mona Nasser, Karanjot S Gill
BACKGROUND: Recognition of some of the limitations of titanium plates and screws used for the fixation of bones has led to the development of plates manufactured from bioresorbable materials. Whilst resorbable plates appear to offer clinical advantages over metal plates in orthognathic surgery, concerns remain about the stability of fixation and the length of time required for their degradation and the possibility of foreign body reactions. This review compares the use of titanium versus bioresorbable plates in orthognathic surgery and is an update of the Cochrane Review first published in 2007...
October 4, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28968333/efficiency-and-duration-of-orthodontic-orthognathic-surgery-treatment
#16
Mahboobe Dehghani, Faryal Fazeli, Ali Payam Sattarzadeh
INTRODUCTION: To investigate the combined orthodontic-orthognathic treatment times at an academic hospital in the UK and to consider the level of occlusal change in delivering this treatment by the way of comparing peer assessment rating (PAR) scores pre- and post-treatment. METHODS: It was a retrospective longitudinal study of orthognathic patients between 2010 and 2013 who had completed orthognathic treatment. Analysis of records of 50 patients was carried out...
September 29, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28966068/stability-of-intraoral-vertical-ramus-osteotomies-for-mandibular-setback-a-longitudinal-study
#17
A Y H Kung, Y Y Leung
This study aimed to investigate the postoperative longitudinal skeletal changes and stability following intraoral vertical ramus osteotomies (IVRO) for orthognathic mandibular setback, and the possible risk factors that might affect the stability. A retrospective cohort study was conducted. Lateral cephalograms were analyzed for the predictor (magnitude of setback and adjunctive procedures) and outcome (stability of vertical and horizontal dimensions) variables at six time points. A total of 152 patients (mean age 24...
September 28, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28966066/orthodontic-camouflage-versus-orthodontic-orthognathic-surgical-treatment-in-class-ii-malocclusion-a-systematic-review-and-meta-analysis
#18
REVIEW
R Raposo, B Peleteiro, M Paço, T Pinho
This systematic review was performed to compare dental, skeletal, and aesthetic outcomes between orthodontic camouflage and surgical-orthodontic treatment, in patients with a skeletal class II malocclusion and a retrognathic mandible who have already finished their growth period. A literature search was conducted, and a modified Downs and Black checklist was used to assess methodological quality. The meta-analysis was conducted using the DerSimonian-Laird random-effects method to obtain summary estimates of the standardized mean differences and corresponding 95% confidence intervals...
September 28, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28962933/a-high-proportion-of-children-with-unilateral-cleft-lip-and-palate-needed-complex-orthodontic-treatment-or-orthognathic-surgery
#19
Romina Brignardello-Petersen
No abstract text is available yet for this article.
September 23, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28962930/systemic-corticosteroids-may-reduce-facial-edema-after-orthognathic-surgery
#20
Romina Brignardello-Petersen
No abstract text is available yet for this article.
September 23, 2017: Journal of the American Dental Association
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