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International Journal of Oral and Maxillofacial Surgery

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https://www.readbyqxmd.com/read/28928010/three-dimensional-strut-plate-for-the-treatment-of-mandibular-fractures-a-systematic-review
#1
REVIEW
J C S de Oliveira, L B Moura, J D S de Menezes, M A C Gabrielli, V A Pereira Filho, E Hochuli-Vieira
The treatment of mandibular fractures by open reduction and internal fixation is very variable. Thus, there are many controversies about the best fixation system in terms of stability, functional recovery, and postoperative complications. This systematic review sought scientific evidence regarding the best indication for the use of three-dimensional (3D) plates in the treatment of mandibular fractures. A systematic search of the PubMed/MEDLINE, Elsevier/Scopus, and Cochrane Library databases was conducted to include articles published up until November 2016...
September 16, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28928009/oropharyngeal-epignathus-with-partial-facial-duplication-report-of-a-rare-case
#2
M Herath, B S M S Siriwardena, R D Jayasinghe, D K Dias
Foetal oral teratoma or epignathus is a rare benign condition that originates in the oropharyngeal region. The term 'teratoma' refers to a mass composed of poorly organized tissues derived from each of the three germ layers. Epignathus may occur when one twin ceases development during gestation and becomes vestigial to the fully formed dominant twin. The reported incidence of epignathus is approximately 1:35,000 to 1:200,000 live births. A unique case of partial facial duplication with gross histological and radiological evidence of partial duplication of the facial elements and organs is presented herein...
September 16, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28927744/impact-of-resveratrol-on-bone-repair-in-rats-exposed-to-cigarette-smoke-inhalation-histomorphometric-and-bone-related-gene-expression-analysis
#3
F C Franck, B B Benatti, D C Andia, F R Cirano, R C Casarin, M G Corrêa, F V Ribeiro
This study investigated the effect of resveratrol on bone healing and its influence on the gene expression of bone-related markers in rats exposed to cigarette smoke. Two calvarial defects were created in each of 60 rats, which were assigned equally (n=20) to three groups: (1) resveratrol (10mg/kg)+smoke exposure (SMK+RESV); (2) placebo+smoke exposure (SMK+PLA); or (3) placebo+no smoke exposure (NS+PLA). Substances were administered daily for 30days following surgery. Smoke inhalation was started 7days before surgery and continued for 30days after surgery...
September 15, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28927743/does-a-mandibular-access-osteotomy-improve-survival-in-pt2-oral-tongue-cancers-retrospective-study-at-a-single-institution
#4
H S Ong, S Gokavarapu, Z Tian, J Li, W Cao, C P Zhang
The surgical approach to the resection of oral tongue cancers can involve transoral resection (TOR) or a temporary mandibulotomy access (TMA). There are no relevant guidelines, and the oncological safety of TOR needs consideration. The objective of this study was to investigate TMA and TOR in pT2 oral tongue cancer surgery with regard to cancer outcomes. Demographic, surgical, and histology data from primary pT2 tongue cancers were recorded and evaluated through multivariate Cox regression for local recurrence (LR), disease-free survival (DFS), and overall survival (OS)...
September 15, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28919165/validation-of-the-vectra-h1-portable-three-dimensional-photogrammetry-system-for-facial-imaging
#5
L Camison, M Bykowski, W W Lee, J C Carlson, J Roosenboom, J A Goldstein, J E Losee, S M Weinberg
Three-dimensional (3D) surface imaging using stereophotogrammetry has become increasingly popular in clinical settings, offering advantages for surgical planning and outcome evaluation. The handheld Vectra H1 is a low-cost, highly portable system that offers several advantages over larger stationary cameras, but independent technical validation is currently lacking. In this study, 3D facial images of 26 adult participants were captured with the Vectra H1 system and the previously validated 3dMDface system. Using error magnitude statistics, 136 linear distances were compared between cameras...
September 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28886894/satisfaction-with-facial-profile-aesthetics-are-norms-overrated
#6
I Manevska, A Pavlic, V Katic, M Trinajstic Zrinski, M Drevensek, S Spalj
This study aimed to explore to what extent adults perceive deviations from the norm of a balanced profile with normal occlusion as reducing satisfaction with facial appearance and having a psychosocial impact. This cross-sectional study included 225 Caucasian subjects (64% women) aged 18-42 years. Their facial profiles were analyzed photogrammetrically and they were classified into three categories: within, below, or above the standard range for the Croatian population with a normal occlusion. Psychosocial issues were assessed by self-reported satisfaction with facial appearance and domains from the Orthognathic Quality of Life Questionnaire: social aspects of dentofacial aesthetics (SA), facial aesthetics concern (FA), and awareness of dentofacial aesthetics (AW)...
September 5, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28886893/the-action-of-anti-inflammatory-agents-in-healthy-temporomandibular-joint-synovial-tissues-is-sex-dependent
#7
S R Figueroba, M F Groppo, D Faibish, F C Groppo
This study evaluated the effects of dexamethasone, parecoxib, and glucosamine on cartilage thickness and cytokine levels in the temporomandibular joint (TMJ). Forty-eight rats (24 female, 24 male) were assigned to four treatments administered once daily for 7 days: control (saline intramuscularly), parecoxib (0.3mg/kg intramuscularly), dexamethasone (0.1mg/kg intramuscularly), and glucosamine (80mg/kg orally). The thickness of TMJ cartilage and levels of four cytokines were measured. Median cartilage thickness was higher in males than in females in the control (253...
September 5, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28882499/secondary-surgical-management-of-osteoradionecrosis-using-three-dimensional-isodose-curve-visualization-a-report-of-three-cases
#8
J Kraeima, R J H M Steenbakkers, F K L Spijkervet, J L N Roodenburg, M J H Witjes
Osteoradionecrosis is defined as bone death secondary to radiotherapy. There is a relationship between the radiation dose received and the occurrence of osteoradionecrosis of the jaws, with the risk increasing above a dose of 60Gy. In cases of class III mandibular osteoradionecrosis, a segmental resection can be indicated. Current practice is to completely remove the affected bone up to the point where the bone looks healthy and is bleeding. Exact resection planning and the use of guided surgery based on imaging of the bone changes have not been reported so far...
September 4, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28882498/reproducibility-of-the-dynamics-of-facial-expressions-in-unilateral-facial-palsy
#9
M A Alagha, X Ju, S Morley, A Ayoub
The aim of this study was to assess the reproducibility of non-verbal facial expressions in unilateral facial paralysis using dynamic four-dimensional (4D) imaging. The Di4D system was used to record five facial expressions of 20 adult patients. The system captured 60 three-dimensional (3D) images per second; each facial expression took 3-4seconds which was recorded in real time. Thus a set of 180 3D facial images was generated for each expression. The procedure was repeated after 30min to assess the reproducibility of the expressions...
September 4, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28863859/grafting-materials-for-alveolar-cleft-reconstruction-a-systematic-review-and-best-evidence-synthesis
#10
REVIEW
C Wu, W Pan, C Feng, Z Su, Z Duan, Q Zheng, C Hua, C Li
The purpose of this study was to compare the efficacy of alveolar bone reconstruction for alveolar cleft patients performed with the traditional iliac graft or alternative/supplementary bone grafting materials. Electronic databases, relevant journals, and reference lists of the included studies were searched to the end of June 2016. A best-evidence synthesis was performed to draw conclusions. A total of 38 studies were included, which provided 25 pieces of evidence: seven of moderate evidence and 18 of insufficient evidence...
August 29, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28869064/multiple-correspondence-analysis-as-a-strategy-to-explore-the-association-between-categories-of-qualitative-variables-related-to-oral-maxillofacial-trauma-and-violent-crimes-at-the-community-level
#11
Í de Macedo Bernardino, L M Santos, A V P Ferreira, T L M de Almeida Lima, L M da Nóbrega, S d'Avila
The main objective of this study was to show the applicability of multiple correspondence analysis (MCA) in the detection and representation of underlying structures in large datasets used to investigate oral-maxillofacial lesions. A cross-sectional study was conducted involving the analysis of the medical-forensic and social records of 992 people who experienced oral-maxillofacial trauma resulting from non-fatal violent crimes that occurred in the community. Based on the MCA results, two distinct victim profiles were identified...
August 28, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28843885/the-impact-of-treatment-for-head-and-neck-cancer-on-positive-psychological-change-within-a-year-of-completing-treatment
#12
S Harding, T P Moss
Head and neck cancer carries a high level of morbidity and mortality. So why could anyone find having such a disease a positive event? The adversity hypothesis of "what doesn't kill you makes you stronger" suggests that people can use adversity to develop as human beings. This positive psychological change has received little attention in relation to head and neck cancer. Responses to the Silver Lining Questionnaire, University of Washington Quality of Life Questionnaire, and Short-Form 12 were collected from a postal survey, 3 to 12 months after the completion of treatment for head and neck cancer...
August 23, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28844337/temporomandibular-joint-reconstruction-after-condylar-fracture-complication-related-to-osteosynthesis-material
#13
J F C Dantas, J N Nogueira Neto, V A Sarmento, P S F Campos
Total condylar resorption and the failure of bone synthesis material as postoperative complications of condyle fracture are seldom reported in the literature. When these occur, they may severely limit temporomandibular joint (TMJ) function. In such cases, a reconstruction of the joint is indicated, which can be achieved by means of an alloplastic prosthesis. This article reports a rare case of impaction of osteosynthesis material in the region of the base of the skull associated with a mandibular condyle fracture treated with rigid internal fixation, which resulted in complications...
August 22, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28826759/condylar-positions-before-and-after-bilateral-mandibular-distraction-osteogenesis-in-children-with-pierre-robin-sequence
#14
J Liu, Y Chen, F Li, W Wu, J Hao, D Luo, H Wang
This study aimed to analyze the changes in mandibular morphology after bilateral mandibular distraction osteogenesis (BMDO) in children with Pierre Robin sequence. The positions of the condyles were analyzed in reconstructed three-dimensional craniomaxillofacial images obtained for 18 children before and 8-12 weeks after BMDO. Differences between pre- and postoperative parameters were assessed using paired t-tests. After surgery, a significant decrease in superior joint space was detected (P<0.05), but no change in anterior joint space or posterior joint space was observed...
August 18, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28823907/the-difference-between-registered-natural-head-position-and-estimated-natural-head-position-in-three-dimensions
#15
S Zhu, A Keeling, T C Hsung, Y Yang, B Khambay
This study determined the intra-rater and inter-rater reliability of re-orientating three-dimensional (3D) facial images into the estimated natural head position. Three-dimensional facial images of 15 pre-surgical class III orthognathic patients were obtained and automatically re-orientated into natural head position (RNHP) using a 3D stereophotogrammetry system and in-house software. Six clinicians were asked to estimate the NHP of these patients (ENHP); they re-estimated five randomly selected 3D images after a 2-week interval...
August 17, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28823906/virtual-quad-zygoma-implant-placement-using-cone-beam-computed-tomography-sufficiency-of-malar-bone-volume-intraosseous-implant-length-and-relationship-to-the-sinus-according-to-the-degree-of-alveolar-bone-atrophy
#16
J Bertos Quílez, R Guijarro-Martínez, S Aboul-Hosn Centenero, F Hernández-Alfaro
The objective of this study was to investigate the malar bone volume and length that a zygomatic implant can engage, and the relationship to the sinus according to the degree of alveolar bone atrophy. A three-dimensional evaluation was performed using cone beam computed tomography scans from 23 patients with a totally edentulous maxilla; quad zygoma implants were virtually placed. The predictor variable was the amount of malar bone volume and length that a zygomatic implant can engage. The primary outcome variable was the relationship to the sinus according to the degree of alveolar bone atrophy...
August 17, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28823905/marginal-or-segmental-mandibulectomy-treatment-modality-selection-for-oral-cancer-a-systematic-review-and-meta-analysis
#17
REVIEW
L Gou, W Yang, X Qiao, L Ye, K Yan, L Li, C Li
Surgery is the most well established mode of initial definitive treatment for the majority of oral cancers. The most important decision in terms of tumour ablation in oral cancers when the jaws are potentially involved is the management of the mandible. The aim of this study was to explore the differences in survival rate and disease control between patients undergoing marginal mandibulectomy and patients undergoing segmental mandibulectomy using a systematic review and meta-analysis approach. A total of 15 cohort studies, including 1672 participants, were identified...
August 17, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28823904/a-two-year-follow-up-of-surgical-and-non-surgical-treatments-in-patients-with-masticatory-muscle-tendon-aponeurosis-hyperplasia
#18
N Hayashi, T Sato, Y Fukushima, A Takano, I Sakamoto, T Yoda
This study re-examined the usefulness of surgery for the management of masticatory muscle tendon-aponeurosis hyperplasia (MMTAH) through a comparison of the outcomes between patients who underwent surgery and those who did not. The duration of follow-up was 2 years. Twenty-eight patients who attended the study hospital and were given a diagnosis of MMTAH were included. Nineteen patients underwent surgery (surgical group) and nine patients were instructed to open their mouths wide once a day and did not undergo surgery (non-surgical group)...
August 17, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28822678/signs-of-disease-occur-in-the-majority-of-third-molars-in-an-adult-population
#19
I Ventä, M M Vehkalahti, S Huumonen, A L Suominen
The purpose of this study was to assess clinical and radiographic signs of disease in third molars within a population that is representative of the Finnish adult population aged 30 years and older. A two-stage stratified cluster sampling method was used to collect the 6005 subjects, who were examined clinically and also by panoramic radiography. The state of impaction, presence of dentinal caries and/or restorations, presence of root canal fillings, periodontal pocket depth, and additional pathological findings such as over-eruption and widened follicle were assessed...
August 16, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28822677/dentoskeletal-parameters-related-to-visual-perception-of-facial-asymmetry-in-patients-with-skeletal-class-iii-malocclusion-after-orthognathic-surgery
#20
C-W Lin, Y-C Wang, Y-H Chen, E W-C Ko
The purpose of the study is to explore the critical parameters determining the visual perception of postoperative facial symmetry. This study retrospectively included 24 patients with skeletal class III malocclusion and double-jaw orthognathic surgery (OgS). The patients were classified according to the outcome of subjective visual perception scores (SVPS) based on the postoperative frontal images by 10 orthodontists: symmetrical surgical outcome (S group, n=12) and facial asymmetry after surgery (A group, n=12)...
August 16, 2017: International Journal of Oral and Maxillofacial Surgery
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