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Maxillomandibular

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https://www.readbyqxmd.com/read/28439152/intraosseous-leiomyoma-of-the-mandible-a-case-report-of-the-rare-entity-and-review-of-literature
#1
REVIEW
Kirti Chaudhry Dutt, Sukhvinder Bindra, Meenakshi Awana, Manjit Talwar, Gurvanit Lehl
INTRODUCTION: Leiomyoma is a rare tumor of smooth muscle origin with a very low incidence in the maxillofacial region. Intraosseous occurrence of oral leiomyoma is even rare with involvement of mandible followed by maxilla. AIM: The purpose of this paper is to present a case of intraosseous leiomyoma of the left mandibular angle region with the review of literature describing this rare entity. The paper also highlights the need to include this entity in differential diagnoses of jaw lesions...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28434895/the-use-of-endoprotheses-for-patients-with-complex-asymmetry-a-clinical-case-study
#2
Mónica Umana, Thierry Piral
Facial asymmetry requires multidisciplinary management. In some cases, predictable problems due to congenital abnormalities can be corrected by early orthodontic treatment. Orthodontics is nevertheless often part of an orthosurgical treatment plan. The solutions are conventional and familiar: maxillomandibular rotation osteotomy and genioplasty. Many cases can be treated in this way, but there is often persistent residual asymmetry due to loss of volume that is not corrected by these techniques. The use of maxillo-acial endoprostheses designed on the basis of three-dimensional craniofacial analyses can rebalance volumes simply and with due regard to the patient's anatomy...
April 20, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28417661/corrective-nasal-surgery-after-maxillomandibular-advancement-for-obstructive-sleep-apnea-experience-from-379-cases
#3
Stanley Yung-Chuan Liu, Pi-Jung Lee, Michael Awad, Robert W Riley, Soroush Zaghi
Objective Efficacy of maxillomandibular advancement (MMA) in the treatment of obstructive sleep apnea (OSA) is associated with degree of maxillary advancement. Large maxillary advancement leads to profound changes of the nasolabial region. We present the incidence and indications of post-MMA corrective nasal surgery in a large cohort. Study Design Case series with chart review. Setting University medical center. Subjects and Methods A total of 379 subjects with OSA underwent MMA at Stanford Hospital (surgeons: S...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28364903/long-term-follow-up-of-a-patient-with-achondroplasia-treated-with-an-orthodontic-approach
#4
Hiroyo Mori, Kazuma Matsumoto, Nobuhiko Kawai, Takashi Izawa, Shinya Horiuchi, Eiji Tanaka
We successfully treated a patient with achondroplasia with conventional orthodontic techniques. It was followed by long-term retention. The patient, a 12-year-old boy, had chief complaints of occlusal disturbance and mandibular protrusion. He had been diagnosed with achondroplasia and had growth hormone treatment in his early teenage years. His facial profile was concave with a bulging forehead and a retrognathic maxilla. It was characterized by a skeletal Class III jaw-base relationship with a retropositioned maxilla...
April 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28364893/genetic-polymorphisms-underlying-the-skeletal-class-iii-phenotype
#5
Christiane Vasconcellos Cruz, Claudia Trindade Mattos, José Calasans Maia, José Mauro Granjeiro, Maria Fernanda Reis, José Nelson Mucha, Beatriz Vilella, Antonio Carlos Ruellas, Ronir Raggio Luiz, Marcelo Castro Costa, Alexandre Rezende Vieira
INTRODUCTION: Our goal was to verify the association between candidate polymorphisms and skeletal Class III malocclusion in a well-characterized homogeneous sample set. METHODS: Thirty-five single-nucleotide polymorphisms were studied from 10 candidate loci in 54 Class III subjects and 120 controls. Skeletal Class III characteristics included ANB angle less than 0°, SNB angle greater than 83° (mandibular prognathism), SNA angle less than 79° (maxillary deficiency), Class III molar relationship, and negative overjet...
April 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28341950/frontal-changes-in-the-lower-face-after-clockwise-rotation-of-the-maxillomandibular-complex-without-perisurgical-orthodontic-treatment-in-angle-class-i-and-skeletal-class-iii-women
#6
Sang Woo Lee, Jeongmok Cho, Kikap Kim, Seung Hyun Ahn
BACKGROUND: Orthognathic surgery has become more popular to slenderize a wide lower face and to improve facial esthetics in Asian patients with normal occlusion. Clockwise rotation (CR) of the maxillomandibular complex (MMC) steepens the mandibular plane. This study performed a quantitative analysis on the influence of CR on slenderness of the lower face from the frontal view. PATIENTS AND METHODS: This retrospective study included 36 female patients with Angle Class I occlusion and skeletal Class III pattern...
March 24, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28341880/long-term-skeletal-and-dental-effects-of-facemask-versus-chincup-treatment-in-class-iii-patients-a-retrospective-study
#7
B Wendl, M Stampfl, A P Muchitsch, H Droschl, H Winsauer, A Walter, M Wendl, T Wendl
OBJECTIVES: To investigate the skeletal and dental changes during chincup versus facemask treatment, to compare the long-term effects of the two appliances, and to document the impact of each on treatment success. METHODS: In all, 61 patients with Class III syndrome were retrospectively analyzed at three examination times: 7.8 ± 1.7 years of age (T0, pretreatment), 9.6 ± 2.4 years of age (T1, posttreatment), and around 15-20 years later (T2, long-term follow-up)...
March 24, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28326708/-evaluation-of-electromyogram-activity-and-masticatory-efficiency-in-edentulous-individuals-whose-maxillomandibular-horizontal-relationship-records-were-obtained-with-three-different-methods
#8
Liu Cuiling, Yang Liyuan, Zheng Zheng, Gao Xu
OBJECTIVE: This study was performed to investigate the electromyographic (EMG) activity of the masseter muscle and the anterior temporalis muscle, as well as the masticatory efficiency after insertion of the dentures in edentulous individuals whose maxillomandibular horizontal relationship records were obtained with three different methods. METHODS: Ten edentulous individuals were enrolled in this study. Three types of complete dentures for these 10 edentulous patients were made according to their different maxillomandibular horizontal relationship records...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28315965/evaluation-of-oral-manifestations-of-patients-with-mucopolysaccharidosis-iv-and-vi-clinical-and-imaging-study
#9
Renata Quirino de Almeida-Barros, Paula Frassinetti Vasconcelos de Medeiros, Marcella Quirino de Almeida Azevedo, Adriana de Oliveira Lira Ortega, Angela Toshie Araki Yamamoto, Sheyla Kátia Lúcio Dornelas, Patrícia Meira Bento
OBJECTIVE: The aim of this study is to assess oral manifestations in patients with mucopolysaccharidosis IV (MPS IVA) and mucopolysaccharidosis VI (MPS VI). MATERIALS AND METHODS: Seventeen patients were assessed, nine with MPS IVA and eight with MPS VI, treated at the Medical Genetics Outpatient Clinic of Hospital Universitário Alcides Carneiro (HUAC) in Campina Grande, Paraíba State, Brazil. Assessments included clinical and intraoral examinations, analysis of occlusal function, and panoramic X-rays...
March 19, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28294946/continuing-the-original-stanford-sleep-surgery-protocol-from-upper-airway-reconstruction-to-upper-airway-stimulation-our-first-successful-case
#10
Stanley Yung Liu, Robert Wayne Riley
In 1993, a surgical protocol for dynamic upper airway reconstruction in patients with obstructive sleep apnea (OSA) was published, and it became commonly known as the Stanford phase 1 and 2 sleep surgery protocol. It served as a platform on which research and clinical studies have continued to perfect the surgical care of patients with OSA. However, relapse is inevitable in a chronic condition such as OSA, and a subset of previously cured surgical patients return with complaints of excessive daytime sleepiness...
February 20, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28293491/disparities-in-utilization-of-jaw-surgery-for-treatment-of-sleep-apnea-a-nationwide-analysis
#11
Ravi K Garg, Ying Shan, Jeffrey A Havlena, Ahmed M Afifi
BACKGROUND: Maxillomandibular advancement has been shown to be one of the most effective operations for management of severe obstructive sleep apnea, yet pharyngeal surgery is more commonly performed. The goal of this study was to identify socioeconomic factors associated with this phenomenon. METHODS: Patients aged 14 or older with a primary hospital diagnosis of sleep apnea were identified using the National Inpatient Sample from 2005 to 2012. ICD9 codes were used to determine whether a pharyngeal or jaw procedure was performed...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28258532/counterclockwise-maxillomandibular-advancement-a-choice-for-chinese-patients-with-severe-obstructive-sleep-apnea
#12
Silong Wei, Yong Zhang, Xiaojing Guo, Wenwen Yu, Meng Wang, Kan Yao, Hongxia Sun, Hua Zhang, Xiaofeng Lu
PURPOSE: Maxillomandibular advancement (MMA) is an effective alternative for treating severe obstructive sleep apnea (OSA). However, the promotion of MMA in China is limited by many Chinese patients having a convex facial profile. To achieve maximal upper airway enlargement without an esthetic disaster, we added counterclockwise rotation of the maxillomandibular complex (MMC) in the routine MMA. In this paper, we have evaluated the objective and subjective outcomes of this technology...
March 3, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28195897/base-of-skull-blocks-for-open-reduction-and-internal-fixation-of-faciomaxillary-fractures
#13
Sandeep Mehrotra, Sunil Anand
INTRODUCTION: Faciomaxillary fractures (FMF) occur in a significant proportion of trauma patients. Nearly all polytrauma patients and even those with isolated FMF are managed under general anesthesia for definitive management. We propose the use of regional nerve blocks as a safe and effective means for open reduction and fixation of isolated FMF. AIM AND OBJECTIVES: The aim is to evaluate the feasibility, effectiveness and safety of base of skull maxillomandibular and distal trigeminal nerve blocks in the management of FMF...
February 14, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28169263/comparison-of-soft-tissue-changes-in-simultaneous-maxillomandibular-distraction-with-mandibular-distraction-with-second-stage-maxillary-osteotomy
#14
S M Balaji, Preetha Balaji
BACKGROUND: The purpose of this study was to compare the frontal lip cant changes in common facial asymmetry (FA) cases after simultaneous maxillomandibular distraction osteogenesis (DO) and mandibular DO with maxillary orthognathic surgery. MATERIALS AND METHODS: Retrospective analysis of FA cases at tertiary craniofacial referral was performed. Patients of either gender with all medical imaging records and pre- and post-operative (1 year) facial photographs in natural head position were included in the study...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28159344/use-of-cad-cam-technology-for-the-fabrication-of-complete-dentures-an-alternative-technique
#15
Burak Yilmaz, Aysen Nekora Azak, Gülce Alp, Hilal Ekşi
Computer-aided design and computer-aided manufacturing (CAD-CAM) technology is available for the fabrication of complete dentures as an alternative to conventional fabrication techniques. This report describes a work flow for a technique that combines the use of conventional impressions and maxillomandibular relationship records with CAD-CAM technology for the fabrication of maxillary and mandibular complete dentures.
January 31, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28127978/surgical-treatment-of-condylar-head-fractures-the-way-to-minimize-the-postraumatic-tmj-ankylosis
#16
D Hirjak, V Machon, M Beno, B Galis, I Kupcova
Management of condylar head fractures (CHF) of the temporomandibular joint (TMJ) remains a source of controversy. Based on established literature, group of CHFs and conservative treatment connected with period of maxillomandibular fixation (MMF) increases the risk for TMJ ankylosis. This paper presents anatomical and functional results of surgical treatment of condylar head fractures in a group of 24 patients (29 joints). Fractures were diagnosed based on conventional radiographs and computed tomography (CT) scans...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28123648/effectiveness-of-maxillomandibular-advancement-mma-surgery-in-sleep-apnea-treatment-case-report
#17
Otávio Ferraz, Thais M Guimarães, Rowdley R Rossi, Paulo A Cunali, Cibele Dal Fabbro, Cauby M Chaves, Milton Maluly, Lia Bittencourt, Sergio Tufik
Obstructive sleep apnea (OSA) is characterized by episodes of pharyngeal collapse during sleep. Craniofacial alterations such as retrognathia are often found in OSA patients. Maxillomandibular advancement (MMA) surgeries increase the pharyngeal space and are a treatment option for OSA. The aim of this study was to present a successful case of MMA surgery in the treatment of OSA. A patient with moderate OSA (apnea-hypopnea index (AHI)=25.2) and mandibular retrognathism and Maxillomandibular asymmetry underwent MMA surgery...
July 2016: Sleep Science
https://www.readbyqxmd.com/read/28111283/morphological-impact-on-patients-of-maxillomandibular-advancement-surgery-for-the-treatment-of-obstructive-sleep-apnea-hypopnea-syndrome
#18
Thibaut Beranger, Emilie Garreau, Joël Ferri, Gwenael Raoul
INTRODUCTION: The aim of this study is to evaluate the experience of patients who have benefited from maxillomandibular advancement surgery for the treatment of obstructive sleep apnea-hypopnea syndrome (OSAHS), and also the morphological modifications measured on pre- and postoperative lateral headfilms. PATIENTS AND METHODS: Twenty-three patients aged 24 to 64 (M=46.8) who had undergone bimaxillary advancement osteotomy for the treatment of OSAHS filled in a questionnaire concerning their overall satisfaction following surgery, the modification of their facial appearance as perceived by themselves and their family and friends, the change in their smile, and the slimmer and more youthful appearance of their face...
March 2017: International Orthodontics
https://www.readbyqxmd.com/read/28071714/three-dimensional-surgical-simulation-improves-the-planning-for-correction-of-facial-prognathism-and-asymmetry-a-qualitative-and-quantitative-study
#19
Cheng-Ting Ho, Hsiu-Hsia Lin, Eric J W Liou, Lun-Jou Lo
Traditional planning method for orthognathic surgery has limitations of cephalometric analysis, especially for patients with asymmetry. The aim of this study was to assess surgical plan modification after 3-demensional (3D) simulation. The procedures were to perform traditional surgical planning, construction of 3D model for the initial surgical plan (P1), 3D model of altered surgical plan after simulation (P2), comparison between P1 and P2 models, surgical execution, and postoperative validation using superimposition and root-mean-square difference (RMSD) between postoperative 3D image and P2 simulation model...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28067977/the-effect-of-teeth-in-mandibular-fracture-lines
#20
Aylin Sipahi Calis, Candan Efeoglu, Huseyin Koca
BACKGROUND/AIM: The decision to retain or extract teeth in the line of mandibular fractures has been a subject of debate in the scientific literature, and there is a need for further evidence to clear this issue. Thus, the aim of this study was to investigate the effects on healing of teeth in the line of mandibular fractures in order to contribute to the field. MATERIAL AND METHODS: The case notes of 100 patients with teeth in the line of 106 mandibular fractures were reviewed...
January 9, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
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