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Maxillofacial

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https://www.readbyqxmd.com/read/28818322/stability-of-biodegradable-metal-mg-ca-zn-alloy-screws-compared-with-absorbable-polymer-and-titanium-screws-for-sagittal-split-ramus-osteotomy-of-the-mandible-using-the-finite-element-analysis-model
#1
Jee-Ho Lee, Hyung-Seop Han, Yu-Chan Kim, Jin-Yong Lee, Bu-Kyu Lee
Mg-Ca-Zn alloy has been suggested for the application of fixation materials during maxillofacial surgery. We investigated the stability of Mg-Ca-Zn alloy for clinical application during orthognathic surgery. The finite element model for the fixation of sagittal split ramus osteotomy was constructed. In the bicortical screw fixation of the mandible setback condition, the stress distributions of Mg-Ca-Za alloy, polylactic acid polymer, and titanium were evaluated using the virtual model with occlusal loading of 132 N...
July 4, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28815258/-anterolateral-thigh-flap-for-reconstruction-of-defects-after-en-bloc-resection-of-buccal-cancer-a-retrospective-study-of-23-cases
#2
Zhi-Yuan Deng, Xiao-Dan Fang, Hao Pan, Yan-Jia Hu, Zhan-Gui Tang
PURPOSE: This study was aimed to observe the effects of anterolateral thigh flap for reconstruction of tissue defects after en bloc resection of buccal cancer. METHODS: Twenty-three patients with soft tissue defects after en bloc resection of buccal cancer underwent simultaneous reconstruction with anterolateral thigh flap from May, 2013 to May, 2015 were observed. Anterolateral thigh flaps were designed and harvested in form of single or multiple islands to restore the defect in buccal region after surgery...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28815255/-investigation-of-related-risk-factors-of-temporomandibular-disorders-in-109-patients
#3
Xin-Xin Hu, Yao-Min Zhu, Liu-Ting He, Ying Gu, Zhi-Gang Liang, Cang-Shang Zheng
PURPOSE: To investigate the related risk factors of temporomandibular disorders(TMD), and to provide evidences for clinical prevention. METHODS: One hundred and nine TMD patients were included in the study as case group, while 109 people with no TMJ symptoms and signs were selected randomly as control group. All subjects fulfilled questionaires. Logistics regression analysis was used to analyze the data with SPSS 22.0 software package. RESULTS: Females patients were more common than males, with 20~29 age group accounting for 44%...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28815251/-morphometric-analysis-of-maxillofacial-bone-in-48-patients-with-ectodermal-dysplasia
#4
Hao-Wei Wang, Feng Wang, Wei Huang, Wen-Jie Zhou, Yue-Ping Wang, Yi-Qun Wu
PURPOSE: The study was performed to analyze the maxillofacial morphology of 48 patients with ectodermal dysplasia (ED) and to provide some reference for implant treatment of ED patients. METHODS: The study collected the clinical data and lateral cephalometric radiographs of 48 patients with ED treated between June 2013 and October 2016. The patients were grouped as follows: group 1, 23 patients, at least with two kinds of ectodermal disorder, besides hypodontia; group 2, 25 patients, only with one kind of ectodermal disorder, besides hypodontia...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28815164/a-meta-analysis-of-cervical-laminoplasty-techniques-are-mini-plates-superior
#5
REVIEW
Ali Humadi, Tat Chao, Sulaf Dawood, Mark Tacey, Arshad Barmare, Brian Freeman
STUDY DESIGN: Meta-analysis and systematic review of literature. OBJECTIVE: In the late 1990s, spinal surgeons experimented by using maxillofacial fixation plates as an alternative to sutures, anchors, and local spinous process autografts to provide a more rigid and lasting fixation for laminoplasty. This eventually led to the advent of laminoplasty mini-plates, which are currently used. The objective is to compare laminoplasty techniques with plate and without plate with regard to functional outcome results...
June 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28814956/rapid-rapamycin-only-induced-osteogenic-differentiation-of-blood-derived-stem-cells-and-their-adhesion-to-natural-and-artificial-scaffolds
#6
Carpentieri Arianna, Cozzoli Eliana, Acri Flavio, Ranalli Marco, Diedenhofen Giacomo, Scimeca Manuel, Bonanno Elena, Gambacurta Alessandra
Stem cells are a centerpiece of regenerative medicine research, and the recent development of adult stem cell-based therapy systems has vigorously expanded the scope and depth of this scientific field. The regeneration of damaged and/or degraded bone tissue in orthopedic, dental, or maxillofacial surgery is one of the main areas where stem cells and their regenerative potential could be used successfully, requiring tissue engineering solutions incorporating an ideal stem cell type paired with the correct mechanical support...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28813570/experimental-and-numerical-characterization-of-the-mechanical-masseter-muscle-response-during-mastication
#7
Johannes Weickenmeier, Mahmood Jabareen, Benjamin J D Le Révérend, Marco Ramaioli, Edoardo Mazza
Predictive simulations of the mastication system would significantly improve our understanding of temporomandibular joint disorders and the planning of cranio-maxillofacial surgery procedures. Respective computational models must be validated by experimental data from in-vivo characterization of the mastication system's mechanical response. The present work introduces a combined experimental and numerical procedure for the validation of a computer model of the masseter muscle during biting. The proposed experimental setup enables simultaneous bite force measurements and ultrasound-based visualization of masseter deformation for the direct comparison with the numerically predicted masseter response...
August 16, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28809369/maxillofacial-fracture-epidemiology-and-treatment-plans-in-the-northeast-of-iran-a-retrospective-study
#8
S Samieirad, M-R Aboutorabzade, E Tohidi, B Shaban, H Khalife, M-A Hashemipour, H-R Salami
BACKGROUND: The epidemiology of facial injuries varies based on lifestyle, cultural background and socioeconomic status in different countries and geographic zones. This study evaluated the epidemiology of maxillofacial fractures and treatment plans in hospitalized patients in Northeast of Iran (2015-2016). MATERIAL AND METHODS: In this retrospective study, the medical records of 502 hospitalized patients were evaluated in the Department of Maxillofacial Surgery in Kamyab Hospital in Mashhad, Iran...
August 15, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28806538/surgical-safety-checklists-are-underutilized-in-ambulatory-oral-and-maxillofacial-surgery
#9
Archana Viswanath, Andras Balint, Robert E Johnson, Morton B Rosenberg, Daniel Oreadi
PURPOSE: The objective of this study was to determine attitudes toward and the prevalence of using a surgical safety checklist in ambulatory oral and maxillofacial surgery (OMS) practice. MATERIALS AND METHODS: The authors designed and implemented a cross-sectional study and enrolled a random sample of oral and maxillofacial surgeons. The predictor variable was years removed from residency. The primary outcome was the prevalence of surgical safety checklist usage in ambulatory OMS practice...
July 21, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28806384/transient-amaurosis-and-diplopia-after-inferior-alveolar-nerve-block
#10
Onur Odabaşi, Onur Şahin, Mehmet Emrah Polat
A 40-year-old female patient was admitted to the authors' oral and maxillofacial clinic for removal of her lower left second molar under local anesthesia. The patient's medical history revealed that she had cardiac arhythmia and hypertension. Inferior alveolar nerve block was achieved using 2 mL of sefacaine (%3 mepivacaine HCL, without epinephrine). The patient complained of loss of vision in her left eye. All procedures were stopped immediately. Within 2 minutes the patient reported diplopia. All of the symptoms disappeared about 5 minutes after initial observation...
August 10, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28806115/-combined-treatment-of-avulsion-of-maxillary-central-incisors
#11
Katalin Vajda, Gergő Fekecs, Zsófia Muzsek
Avulsion of the permanent teeth is one of the most serious forms of traumatic dental injuries, which endangers the patients' quality of life. Therefore, the fast and proper treatment is crucial. In this case report we will discuss the supportive and definitive functional treatment and correct rehabilitation. The traumatic force can cause complex oral and maxillofacial injuries, which comprehensive treatment constitutes a major challenge for the dentist. Here we review functional restoration of dental injuries and their definitive aesthetic solution...
August 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28803736/an-aggressive-and-fatal-craniofacial-group-a-streptococcus-infection-resulting-from-a-minimally-displaced-orbital-floor-fracture
#12
R M Uhrich, M Sherban, C Valdez
While sharp, penetrating trauma is often associated with group A Streptococcus (GAS) infections and subsequent necrotizing fasciitis (NF) and streptococcal toxic shock syndrome (STSS), there are scant reports in the oral and maxillofacial surgery literature regarding blunt, non-penetrating trauma in association with these conditions. With a clinical course that initially appears relatively benign following blunt trauma, NF can progress swiftly through the fascial planes and may quickly become life-threatening if the oral and maxillofacial surgeon fails to recognize some of the critical pathognomonic signs...
August 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28798447/conference-report-joint-conference-of-the-british-society-for-oral-maxillofacial-pathology-and-scandinavian-society-of-oral-pathology-medicine-cardiff-bay-27-28-april-2017
#13
https://www.readbyqxmd.com/read/28797219/unresolving-trismus-following-third-molar-surgery-report-of-a-case-of-fibrodysplasia-ossificans-progressiva-with-review-of-literature
#14
B R Rajanikanth, Kavitha Prasad, K Vineeth, Sushma M N Sonale, Khuteja Al-Kubra
BACKGROUND: Trismus is a problem commonly encountered by the dental practitioner. It has a number of potential causes, and its treatment will depend on the cause. However, there are very few reports of trismus due to fibrodysplasia ossificans progressiva (FOP) following third molar surgery. CLINICAL PRESENTATION: FOP is a rare human genetic disorder with characteristic clinical features like progressive formation of extraskeletal bone or heterotopic ossification and congenital malformation of the great toes...
August 11, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28796099/radiotherapy-and-smoking-history-are-significant-independent-predictors-for-osteosynthesis-associated-late-complications-in-vascular-free-fibula-reconstruction-of-mandible
#15
YiMing Chen, JiaLing Wu, Sandhya Gokavarapu, Qingcheng Shen, Tong Ji
BACKGROUND: The vascular fibula flap is an ideal choice for function and appearance reconstruction of mandible. Despite the high success rate, "late complications" such as Ti plate exposure and local infection related to osteosynthesis are not uncommon. PATIENTS AND METHOD: A retrospective cohort of patients who received vascular fibula reconstruction for mandible from January 2011 to December 2013 from the Department of Oral and Maxillofacial Oncology in a tertiary hospital were charted: clinical, pathological, and therapeutic factors were analyzed for late complications in univariate and multivariate analyses...
August 8, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28791984/odontogenic-and-nonodontogenic-cysts-an-analysis-of-526-cases-in-turkey
#16
A Kilinc, B Gundogdu, N Saruhan, E Yalcin, U Ertas, G Urvasizoglu
PURPOSE: The aim of this study was to determine the age, gender, and sites of different types of odontogenic cysts (OCs) and non-OCs (nOCs) (seen in eastern Anatolian population in Turkey. MATERIALS AND METHODS: The following data were collected from the clinical records and histopathology reports of the Department of Oral and Maxillofacial Surgery and the Department of Oral Pathology, Ataturk University, Turkey, during a period of 10 years. They were analyzed descriptively in terms of incidence, age, sex, cyst type, and site...
July 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28791277/the-rate-and-stability-of-mandibular-block-bone-graft-in-recent-5%C3%A2-years
#17
Jong-Cheol Park, Yun-Ho Kim, Hong-Seok Choi, Jong-Shik Oh, Sang-Hun Shin, Yong-Deok Kim
BACKGROUND: The purposes of the present study were to compare implant stabilities of mandibular block bone graft and bovine bone graft and to evaluate influencing factors for implant stability in mandibular block bone (MBB) graft. METHODS: This retrospective study investigated 1224 cases and 389 patients treated by one surgeon in the Department of Oral and Maxillofacial Surgery of Pusan National University Dental Hospital (Yangsan, Korea) between January 2010 and December 2014...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28790151/frcs-first-pass-variance-deanery-and-specialty-contrariety
#18
Chris Brown, Tarig Abdelrahman, John Pollitt, Mark Holt, Wyn G Lewis
BACKGROUND: FRCS exit examination success may be interpreted as a surrogate marker for UK Deanery-related training quality. The aim of this study was to evaluate relative FRCS examination pass rates related to Deanery and Surgical Specialty. METHODS: Joint Committee on Surgical Training-published examination first attempt pass rates were scrutinised for type I higher surgical trainees and outcomes compared related to Deanery and Surgical Specialty. RESULTS: Of 9363 FRCS first attempts, 3974 were successful (42...
August 8, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28789668/two-years-retrospective-study-of-maxillofacial-trauma-at-a-tertiary-center-in-north-west-ethiopia
#19
Amare Teshome, Getaneh Andualem, Rediet Tsegie, Samuel Seifu
BACKGROUND: Maxillofacial injury poses a challenge to oral and maxillofacial surgeons working in developing countries with limited resource and human power. The present study aimed to determine the etiology, pattern, and management of maxillofacial trauma in Gondar university of Gondar hospital. METHODS: A retrospective descriptive study design was used. Medical registration retrieving of patients with maxillofacial trauma visited dental center of University of Gondar Hospital from September 2013 to August 2015 was done...
August 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28785348/dermatologic-surgery-and-dermatologic-oncology-as-an-essential-part-of-the-modern-dermatology-in-bulgaria
#20
Georgi Tchernev, Ilia Lozev, Torello Lotti, Uwe Wollina, Serena Gianfaldoni, Claudio Guarneri, Jacopo Lotti, Katlein França, Atanas Batashki, Anastasiya Chokoeva
Dermatosurgery and dermatooncology are an integral part of dermatology as a speciality, and this postulate is strictly respected in a high percentage of European dermatological units. Due to the fact that a number of other specialties interweave with the subject of therapy - the surgical treatment of the patient with skin tumors, the positioning of dermatosurgery as part of dermatology is generally controversial (according to some), and at the same time is often the subject of a number of debates and conflicts...
July 25, 2017: Open Access Macedonian Journal of Medical Sciences
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