10,221 results match your criteria Fracture Mandible


Edentulous Mandible with Four-Splinted Interforaminal Implants Exposed to Three Different Situations of Trauma: A Preliminary Three-Dimensional Finite Element Analysis.

Dent Traumatol 2020 May 27. Epub 2020 May 27.

NumBioLab, Department of Orthodontics, Ludwig-Maximilians University of Munich, Geschwister Scholl Platz 1, 80539, Munich, Germany.

Background/aim: An increasing number of elderly patients with implant-prosthodontic rehabilitation of the edentulous mandible frequently show increased life activity and consequently a greater number of aged patients is at risk for maxillofacial trauma. The aim of this 3-dimensional (3D) finite element analysis (FEA) was to evaluate the biomechanical effects of the edentulous mandible (EM) with and without four splinted interforaminal implants exposed to three different trauma applications including assessment of different mandibular fracture risk areas.

Materials And Methods: In a 3D-FEA study design, EM with and without four splinted interforaminal implants were exposed to the application of 1000N at the symphyseal, parasymphyseal and mandibular angle region. Read More

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http://dx.doi.org/10.1111/edt.12575DOI Listing

Applying dental implant therapy in patients with oral lichen planus: a review of literature.

Int J Implant Dent 2020 May 27;6(1):21. Epub 2020 May 27.

School of Dentistry, Tehran University of Medical Sciences, International Campus, Tehran, Iran.

Lichen planus (LP) is a violent, paranormal inflammatory disease that can affect the skin or any lining of the mucous membrane. LPs are a branch of immune-mediated inflammatory disease (IMID) that collaborates with the function and structure of the immune system that are precipitated through various etiological infectious agents. Oral lichen planus (OLP) is one of the most common kinds of IMID. Read More

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http://dx.doi.org/10.1186/s40729-020-00216-8DOI Listing

Gnathodiaphyseal dysplasia is not recapitulated in a respective mouse model carrying a mutation of the Ano5 gene.

Bone Rep 2020 Jun 14;12:100281. Epub 2020 May 14.

Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Mutations in the gene , encoding for the transmembrane protein Anoctamin 5 (Ano5), have been identified to cause gnathodiaphyseal dysplasia (GDD) in humans, a skeletal disorder characterized by sclerosis of tubular bones, increased fracture risk and fibro-osseous lesions of the jawbones. To better understand the pathomechanism of GDD we have generated via Crispr/CAS9 gene editing a mouse model harboring the murine equivalent (Ano5 p.T491F) of a GDD-causing mutation identified in a previously reported patient. Read More

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http://dx.doi.org/10.1016/j.bonr.2020.100281DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7235620PMC

Oral Rehabilitation with Removable Partial Denture of a Patient with Cleidocranial Dysplasia.

Case Rep Dent 2020 9;2020:8625842. Epub 2020 May 9.

Department of Prosthodontics, Faculty of Dentistry, Shahed University, Tehran, Iran.

This case report describes the oral rehabilitation of a patient with cleidocranial dysplasia who received a removable partial denture along with silicone-based permanent soft liner to improve esthetic and masticatory function. This patient was the candidate of neither implant nor orthodontic treatment due to medical conditions, history of mandible fracture, age, and risk of fracture after mandibular teeth extractions. Cone-beam computed tomography has made it possible to obtain comprehensive information regarding the morphology and positional relationship of impacted supernumerary teeth. Read More

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http://dx.doi.org/10.1155/2020/8625842DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232725PMC

A simple novel technique for the management of a dentoalveolar fracture in a pediatric patient using a vacuum-formed splint.

J Dent Res Dent Clin Dent Prospects 2020 ;14(1):68-72

Department of Prosthodontics, School of Dental Sciences, KIMSDU, Karad, Maharashtra, India.

This paper reports a novel, minimally invasive, simple technique for the treatment of a displaced dentoalveolar fracture using a vacuum-formed splint in a 12-year-old pediatric patient. Vacuum formed splints have been reliable treatment options with limited morbidity and discomfort compared to other traditionally used procedures. Read More

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http://dx.doi.org/10.34172/joddd.2020.010DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7235701PMC
January 2020

Retrospective evaluation of extended glass-ceramic ceramic laminate veneers after a mean observational period of 10 years.

J Esthet Restor Dent 2020 May 25. Epub 2020 May 25.

Department of Restorative Dentistry & Periodontology, University Medical Center Leipzig, Germany.

Purpose: A retrospective evaluation of extended anterior ceramic laminate veneers (EACVs) after a mean observational period of 10 years.

Methods: Thirty-one patients (20 females/11 males) underwent restoration with 101 adhesively luted, heat-pressed EACVs (maxilla, n = 65; mandible, n = 36).

Results: The 10 year survival rate was 91. Read More

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http://dx.doi.org/10.1111/jerd.12597DOI Listing

Evaluation of Stress Distribution of Four Different Fixation Systems at High- and Low-Level Subcondylar Fractures on a Nonhomogenous Finite Element Model.

J Oral Maxillofac Surg 2020 Apr 25. Epub 2020 Apr 25.

Associate Professor, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Başkent University, Ankara, Turkey.

Purpose: The aim of the present study was to provide insight into a suitable fixation system for subcondylar fractures located at different levels.

Materials And Methods: High and low subcondylar fractures were simulated on a nonhomogenous mandibular model, and rhombic, trapezoid, and lambda plates and 2 miniplates were used for fixation. The stress in the bone and displacement of the fracture site were measured using finite element analysis. Read More

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http://dx.doi.org/10.1016/j.joms.2020.04.017DOI Listing

Prevalence and Etiology of Pediatric Maxillofacial Injuries: A Unicenter-based Retrospective Study.

Int J Clin Pediatr Dent 2019 Nov-Dec;12(6):528-531

Department of Oral and Maxillofacial Surgery, King Georges Medical University, Lucknow, Uttar Pradesh, India.

Background: Children are uniquely susceptible to craniofacial trauma because of their greater cranial mass-to-body ratio. The craniofacial injuries comprise approximately 11.3% of an overall pediatric emergency, and its etiology affects the incidence, clinical presentation, and treatment modalities, which are influenced by sociodemographic, economic, and cultural factor of the population being studied. Read More

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http://dx.doi.org/10.5005/jp-journals-10005-1687DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7229381PMC

Symmetry of mandibular movements: A 3D electromagnetic articulography technique applied on asymptomatic participants.

J Prosthet Dent 2020 May 17. Epub 2020 May 17.

Full Professor, Department of Integral Adults Dentistry, Research Centre for Dental Sciences CICO, Dental School, Universidad de La Frontera, Temuco, Chile. Electronic address:

Statement Of Problem: Asymmetries in mandibular movements (MMs) can be found in patients with some temporomandibular joint disorders, condylar fracture, or after orthognathic or orthodontic surgery. Quality and symmetry of the MMs should be recorded and analyzed. However, methods for this purpose are limited. Read More

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http://dx.doi.org/10.1016/j.prosdent.2020.01.020DOI Listing

Open reduction and internal fixation obtains favorable clinical and radiographic outcomes for pediatric mandibular condylar fractures.

J Stomatol Oral Maxillofac Surg 2020 May 17. Epub 2020 May 17.

Department of Otolaryngology, Head and Neck Surgery, Affiliated Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai, China. Electronic address:

Purpose: Surgery with open reduction internal fixation (ORIF) for pediatric mandibular condylar fractures (MCF) is controversial. This study aims to evaluate the clinical and radiographic outcomes of the children with MCF treated surgically with ORIF.

Methods: This retrospective study included 9 children diagnosed with MCF and treated surgically with ORIF. Read More

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http://dx.doi.org/10.1016/j.jormas.2020.05.008DOI Listing

Presentation of cervical metastases and pathological mandibular fracture due to pulmonal adenocarcinoma: A case report.

Int J Surg Case Rep 2020 May 11;70:53-55. Epub 2020 May 11.

Department of Oral and Maxillofacial Surgery, Charité - University Medicine Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany.

Introduction: Oral metastatic tumors due to malignancies at distant locations are very rare. There are only few cases in the literature reporting about mandible/cervical metastases. Sometimes the oral finding is the manifestation of the disease. Read More

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http://dx.doi.org/10.1016/j.ijscr.2020.04.044DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7229232PMC

Craniomaxillofacial Trauma in Dogs-Part I: Fracture Location, Morphology and Etiology.

Front Vet Sci 2020 28;7:241. Epub 2020 Apr 28.

Department of Surgical and Radiological Sciences, University of California, Davis, Davis, CA, United States.

Treatment of craniomaxillofacial (CMF) trauma in dogs often requires a multidisciplinary approach and a thorough understanding of the CMF skeletal structures involved. The aim of this retrospective study was to use a large number of CT studies of dogs evaluated for CMF trauma and to describe fracture location and morphology in relation to demographic data and trauma etiology. The medical records and CT studies of 165 dogs over a 10-year period were evaluated. Read More

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http://dx.doi.org/10.3389/fvets.2020.00241DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7199291PMC

A Comparative Evaluation of Conventional and Staircase Modification of the Intraoral Mandibular Vestibular Incision Approach in Symphysis and Parasymphysis Fractures.

J Contemp Dent Pract 2019 Dec 1;20(12):1395-1401. Epub 2019 Dec 1.

Department of Oral Surgery, Mansarovar Dental College, Bhopal, Madhya Pradesh, India.

Aim: The aim of this study was therefore to evaluate the conventional intraoral mandibular vestibular incision approach in symphysis and parasymphysis fractures and compare prognosis of the incision site, fracture healing, and associated complications with the staircase modification of the intraoral mandibular vestibular incision approach for symphysis and parasymphysis fractures.

Materials And Methods: This study was conducted on 34 healthy individual of age 18-60 years, reporting to the department with a history of trauma having mandibular symphysis or parasymphysis fractures and underwent open reduction and internal fixation under either local or general anesthesia. The treated patients were prospectively followed and examined for the postoperative complications such as pain, swelling, infection, dehiscence, sensory disturbances, and nonunion/malunion of the fracture site. Read More

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December 2019

Evaluation of Complications After Open Reduction and Internal Fixation of Mandibular Condylar Base and Neck Fractures Using Trapezoidal Plates.

J Craniofac Surg 2020 May 4. Epub 2020 May 4.

Department of Oral and Maxillofacial Surgery, Ludwig-Maximillian University of Munich, Munich, Germany.

The purpose of the study was to evaluate the different fracture pattern of patients being treated with trapezoidal plate fixation of condylar base and neck fractures using the AOCMF Classification System to determine specific fracture pattern that are associated with failure of trapezoidal plate fixation. Ten patients with mandibular condylar base and neck fractures underwent internal fixation using trapezoidal plates. Fractures of the condylar process were classified according to the AOCMF Classification System using computed tomography data. Read More

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http://dx.doi.org/10.1097/SCS.0000000000006486DOI Listing

Characteristics of Panfacial Fractures in the Elderly: Etiology, Fracture Patterns, Concomitant Injuries, and Postoperative Complication Risk.

J Craniofac Surg 2020 May 4. Epub 2020 May 4.

Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seoul National University School of Medicine, Seoul, Korea.

Background: Facial trauma, including panfacial fractures caused by high-impact trauma, is increasingly frequent in elderly patients. The purpose of this study was to investigate the effects of the particularly serious and challenging panfacial fractures on elderly adults.

Methods: The authors retrospectively reviewed the files of all patients who were operated for panfacial fractures at our institution from December 2006 to December 2018. Read More

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http://dx.doi.org/10.1097/SCS.0000000000006497DOI Listing

Occlusal Analysis Using T-Scan in Patients With Condylar Fractures When Managed by Closed Method.

J Craniofac Surg 2020 May 4. Epub 2020 May 4.

SDM Craniofacial Surgery and Research Centre, SDM College of Dental Sciences and Hospital, Dharwad, India.

The aim of the study is to assess the occlusion in mandibular condyle fractures using T-Scan and analyze the data obtained. Twenty patients underwent non-surgical management for condylar fractures were treated with Erich arch bar and guiding elastics, and periodically subjected to T-Scan III evaluations. The data obtained was analyzed with the clinical evaluation conducted. Read More

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http://dx.doi.org/10.1097/SCS.0000000000006449DOI Listing
May 2020
0.676 Impact Factor

A mechanical study of novel additive manufactured modular mandible fracture fixation plates - Preliminary Study with finite element analysis..

Injury 2020 Apr 21. Epub 2020 Apr 21.

105 Borderland Military Hospital of Żary, 68-200 Żary, Poland. Electronic address:

The paper presents an innovative osteofixation system designed for bone fracture stabilization. Its special feature, which makes it different from other similar systems, is the possibility to precisely adjust the implant to the shape of the bone. Such a precise adjustment is particularly important in the case of multiple fractures, where proper stabilization is a condition for restoring bone geometry and thus obtaining the biomechanical function of a given segment of the body lost due to fracture. Read More

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http://dx.doi.org/10.1016/j.injury.2020.03.057DOI Listing

Oral and Dental Examination Findings in European Polecats (Mustela putorius).

J Comp Pathol 2020 Apr 19;176:39-49. Epub 2020 Mar 19.

Dentistry and Oral Surgery Department, Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia. Electronic address:

Dental and oral diseases in the domestic ferret have been reported, but comparison with their closest wild relative, the European polecat (Mustela putorius), is lacking. Dental and orofacial pathology was evaluated by means of visual examination and dental radiographical analysis of 234 museum skulls. Most of these (70. Read More

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http://dx.doi.org/10.1016/j.jcpa.2020.02.004DOI Listing

Preauricular Swelling Mimicking a Tumour: Dissolution of Mandibular Capitulum Following Trauma in a 15-Year Old Child.

In Vivo 2020 May-Jun;34(3):1235-1245

Department of Oral and Cranio-Maxillofacial Surgery, Eppendorf University Hospital, University of Hamburg, Hamburg, Germany.

Aim: The report is about diagnosis, therapy, and follow-up of a 15-year old boy, who experienced facial swelling and impaired mouth opening after a sport accident.

Case Report: Diagnosis of mandibular damage was delayed due to inadequate clinical investigation and radiography after trauma and only became clear after a parotid swelling occurred sometime later resulting from the dissolution of the upper part of the articular process. Follow-up control over a period of three years showed a partial restoration of the articular process but some inhibition of mouth opening combined with slight deviation of the mandible to the affected side remained over the years. Read More

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http://dx.doi.org/10.21873/invivo.11897DOI Listing

Olfactory and Gustatory Function in Patients With Different Types of Maxillofacial Trauma.

Laryngoscope 2020 Apr 30. Epub 2020 Apr 30.

Rhinology-Olfactology Unit, Department of Otorhinolaryngology-Head and Neck Surgery, Geneva University Hospitals, Geneva, Switzerland.

Objectives/hypothesis: To investigate olfactory and gustatory function in patients with maxillofacial trauma and associated fractures.

Study Design: Retrospective cohort study.

Methods: Olfactory and gustatory function was assessed psychophysically in 124 patients who had sustained maxillofacial trauma with an associated fracture. Read More

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http://dx.doi.org/10.1002/lary.28701DOI Listing

Reliability of Chair-side Monolithic CAD-CAM Generated Lithium Disilicate Single Crowns with Knife- Edge Finish Line: Up to 5-Year Retrospective Analysis of Clinical Performance.

Eur J Prosthodont Restor Dent 2020 May 28;28(2). Epub 2020 May 28.

University of Zurich, Center for Dental and Oral Medicine, Division of Dental Biomaterials, Clinic for Reconstructive Dentistry, Plattenstrasse 11, CH-8032, Zurich, Switzerland.

This clinical study evaluated the survival of monolithic lithium disilicate (MLD) single crowns. Between January-2010 and January-2015, 87 patients received 122 MLD (IPS e.max CAD) single crowns on natural teeth with knife-edge finish lines that were adhesively bonded (Maxcem Elite). Read More

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http://dx.doi.org/10.1922/EJPRD_1930Scutella04DOI Listing

Ti-15Mo Alloy Decreases the Stress Concentration in Mandibular Angle Fracture Internal Fixation Hardware.

J Maxillofac Oral Surg 2020 Jun 3;19(2):314-320. Epub 2019 Jun 3.

3Department of Physical Chemistry, Institute of Chemistry, São Paulo State University (Unesp), Araraquara, SP Brazil.

Objectives: Comparison of the mechanical stability of 2.0 plates made of commercially pure titanium (cpTi) and a titanium-molybdenum (Ti-15Mo) alloy and two methods of internal fixation employed mandibular angle fractures, using 3D finite element analysis.

Materials And Methods: Four groups were evaluated. Read More

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http://dx.doi.org/10.1007/s12663-019-01251-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7176794PMC

A 4-Year Multicentre Audit of Complications Following ORIF Treatment of Mandibular Fractures.

J Maxillofac Oral Surg 2020 Jun 25;19(2):289-297. Epub 2019 Feb 25.

5Clinical Research Centre, Kuala Lumpur Hospital, Ministry of Health Malaysia, Kuala Lumpur, Malaysia.

Purpose: To ascertain the complications arising from open reduction and internal fixation of mandibular fractures and to elucidate if different osteosynthesis plating systems vary in treatment outcome.

Materials And Methods: This is a retrospective study. Parameters such as patient data, injury details, osteosynthesis implant system information, stability of fracture fragments, occlusion and complications were evaluated at different time intervals and logistic regression applied to determine the association of these factors with complications. Read More

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http://dx.doi.org/10.1007/s12663-019-01204-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7176777PMC

Open Rigid Internal Fixation of Low-Neck Condylar Fractures of the Mandible: Mechanical Comparison of 16 Plate Designs.

Materials (Basel) 2020 Apr 22;13(8). Epub 2020 Apr 22.

Department of Maxillofacial Surgery, Medical University of Lodz, 1st Gen. J. Hallera Pl., 90-647 Lodz, Poland.

Background: In the literature, no information on plates for low-neck mandibular condylar osteosynthesis can be found, despite the fact that 30 plate designs have already been published. The aim of this study was to compare any dedicated plates for possible use in low-neck condylar fracture osteosynthesis.

Methods: The force required for 1-mm displacement of the fixed fracture fragments and incidents of screw loosening were recorded on polyurethane mandibles among 16 designs of titanium plates fixed by 6-mm screws in a 2. Read More

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http://dx.doi.org/10.3390/ma13081953DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215721PMC

Fracture necrosis: A risk indicator for tooth loss.

J Am Dent Assoc 2020 Jun 15;151(6):454-463. Epub 2020 Apr 15.

Background And Overview: The term "fracture necrosis" has been used to describe the condition found in a minimally restored tooth without a history of trauma when the suspected etiology for the loss of pulpal vitality is a crown-originating fracture. Teeth with fracture necrosis have a poor prognosis, and, when accompanied by characteristic radiographic findings, extraction may be considered the primary treatment option.

Case Descriptions: Two adult men with crown-originating fractures and suspected fracture necrosis had localized periodontal bone and attachment loss associated with severe pain on mastication from mandibular second molars. Read More

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http://dx.doi.org/10.1016/j.adaj.2020.01.024DOI Listing

Biomechanical comparison of locking compression plate fixation and a novel pedicle screw external fixation to repair equine mandibular fractures.

Vet Surg 2020 Apr 15. Epub 2020 Apr 15.

Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado.

Objective: To determine the biomechanical properties of pedicle screw external fixation (PDW) for equine mandibular fracture repair and compare PDW to locking compression plates (LCP).

Study Design: Cadaveric study.

Sample Population: Sixteen adult equine mandibles. Read More

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http://dx.doi.org/10.1111/vsu.13416DOI Listing

The Use of A Solitary Multi-Planer Herbert Cannulated Bone Screw Osteosynthesis for The Treatment of Mandibular Angle Fracture.

J Craniofac Surg 2020 Apr 10. Epub 2020 Apr 10.

Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Fayoum University, Fayoum, Egypt.

This study aimed to evaluate the clinical and radiographic performance of a single Herbert bone screw in the treatment of mandibular angle fractures. A prospective case series clinical trial enrolling a sample of patients with unilateral isolated mandibular angle fractures was implemented in this study. The primary outcome variable was the fracture healing with postoperative stability. Read More

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http://dx.doi.org/10.1097/SCS.0000000000006435DOI Listing

Traumatic Brain Injury in Trauma Patients With Isolated Facial Fractures.

J Craniofac Surg 2020 Apr 7. Epub 2020 Apr 7.

Center for Surgery and Public Health.

Background: Diagnosis of traumatic brain injury (TBI), and specifically mild TBI (mTBI), is a diagnostic challenge which can delay diagnosis preventing early intervention and follow-up care. Facial fractures represent an objective surrogate marker for potential force transmission to the neural cavity. The authors' objective was to characterize the prevalence of TBI in trauma patients with isolated facial fractures stratified by injury severity. Read More

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http://dx.doi.org/10.1097/SCS.0000000000006379DOI Listing

Design of a patient-specific mandible reconstruction implant with dental prosthesis for metal 3D printing using integrated weighted topology optimization and finite element analysis.

J Mech Behav Biomed Mater 2020 May 19;105:103700. Epub 2020 Feb 19.

Department of Biomedical Engineering, National Yang-Ming University, 2 No.155, Sec.2, Linong Street, Taipei, 112, Taiwan. Electronic address:

The aim of this study was used a weighted topology optimization method to design a patient-specific mandibular implant for reconstruction and restoration of appearance in patients with severe mandibular defects. A finite element (FE) model was constructed and the defect region was defined from the unilateral first premolar to the second molar. The reconstruction implant included main body, fixation wing and dental prosthesis. Read More

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http://dx.doi.org/10.1016/j.jmbbm.2020.103700DOI Listing

Treatment of Facial Fractures at a Level 1 Trauma Center: Do Medicaid and Non-Medicaid Enrollees Receive the Same Care?

J Surg Res 2020 Apr 9;252:183-191. Epub 2020 Apr 9.

Department of Surgery, University of Massachusetts Medical School, Worcester, Massachusetts. Electronic address:

Background: Timing of surgical treatment of facial fractures may vary with the patient age, injury type, and presence of polytrauma. Previous studies using national data sets have suggested that trauma patients with government insurance experience fewer operations, longer length of hospital stay (LOS), and worse outcomes compared with privately insured patients. The objective of this study is to compare treatment of facial fractures in patients with and without Medicaid insurance (excluding Medicare). Read More

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http://dx.doi.org/10.1016/j.jss.2020.03.008DOI Listing

The Influence of Mandibular Gonial Angle on Fracture Site.

J Oral Maxillofac Surg 2020 Mar 13. Epub 2020 Mar 13.

Department Head, Department of Oral and Maxillofacial Surgery, Rambam Medical Care Center, Haifa, Israel, and Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.

Purpose: The mandibular angle is influenced by multiple codependent morphologic dynamic factors, such as osseous anatomy, forces exerted by the muscles of mastication, occlusal loading patterns, and anatomic structures. These factors can influence the presence of a fracture in this area. Our research aimed to investigate a potential correlation between the risk of angle fractures and age, gender, fracture etiology, gonial angle size, presence of mandibular third molars, or presence of occlusal support. Read More

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http://dx.doi.org/10.1016/j.joms.2020.03.004DOI Listing

Comparing maximal forces in resorbable poly-L-lactic acid and titanium plates for mandibular fracture fixation.

Heliyon 2020 Apr 3;6(4):e03705. Epub 2020 Apr 3.

Department of Plastic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.

Treatment for mandibular fractures is commonly performed via open reduction fixation with mini titanium or resorbable plates and screws. The investigators hypothesized differences in maximum mechanical stress forces and deflection with each plating material; however, it was proposed that the experimental forces withstood by the resorbable system would be enough to withstand normal forces produced during mastication. The sample was composed of fresh cadaver mandibles that were harvested, fractured, and fixated with plates and screws. Read More

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http://dx.doi.org/10.1016/j.heliyon.2020.e03705DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7132074PMC

Retrospective evaluation of implant-supported full-arch fixed dental prostheses after a mean follow-up of 10 years.

Clin Oral Implants Res 2020 Apr 6. Epub 2020 Apr 6.

Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.

Objective: To assess the outcomes of implant-supported full-arch fixed dental prostheses (ISFAFDPs) and the supporting implants.

Material And Methods: This retrospective study included patients treated with ISFAFDPs at one specialist clinic. Implant/prosthesis failure and complications were the outcomes analyzed. Read More

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http://dx.doi.org/10.1111/clr.13600DOI Listing

Masticatory Loading and Ossification of the Mandibular Symphysis during Anthropoid Origins.

Sci Rep 2020 Apr 6;10(1):5950. Epub 2020 Apr 6.

Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio, 44272, USA.

An ossified or 'fused' mandibular symphysis characterizes the origins of the Anthropoidea, a primate suborder that includes humans. Longstanding debate about the adaptive significance of variation in this jaw joint centers on whether a bony symphysis is stronger than an unfused one spanned by cartilage and ligaments. To provide essential information regarding mechanical performance, intact adult symphyses from representative primates and scandentians were loaded ex vivo to simulate stresses during biting and chewing - dorsoventral (DV) shear and lateral transverse bending ('wishboning'). Read More

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http://dx.doi.org/10.1038/s41598-020-62025-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7136211PMC

Determining the frequency of functional disorders of the TMJ in patients with mandible fractures depending on the location.

Wiad Lek 2020 ;73(2):245-249

I. Horbachevsky Ternopil State Medical University ,Ternopil, Ukraine.

Objective: The aim: To investigate the frequency of functional TMJ disorders in patients with fractures of the mandible.

Patients And Methods: Materials and methods: To achieve this goal, 111 patients hospitalized in the department of surgical dentistry of the Chernivtsi Regional Clinical Hospital were examined for traumatic fractures of the mandible with functional disorders of the TMJ (occlusive, muscular, articular disorders). The examination of patients with functional disorders wasbased on Express - the conclusion of the Hamburg Protocol: 1. Read More

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Comparative evaluation of 2D miniplates and 3D miniplates fixation in mandibular angle fracture - A clinical study.

Indian J Dent Res 2020 Jan-Feb;31(1):134-137

Private Practitioner, Multispecialty Dental Clinic Patna, Bihar, India.

Introduction: Mandibular angle fracture is common in road traffic accidents. This study was conducted to compare 3D miniplate system with 2D plates for treatment of mandibular angle fractures.

Materials And Methods: The study was conducted on 120 patients with mandibular angle fracture of both genders. Read More

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http://dx.doi.org/10.4103/ijdr.IJDR_885_19DOI Listing

Mandibular condylar fracture: a systematic review of systematic reviews and a proposed algorithm for management.

Br J Oral Maxillofac Surg 2020 Mar 31. Epub 2020 Mar 31.

Department of Oral and Maxillofacial Surgery, King Abdulaziz Medical City, National Guard, Riyadh, 14611, Saudi Arabia.

The choice of surgical or non-surgical treatment of mandibular condylar fractures remains controversial. Earlier trials documented multiple complications of surgical treatment and recommended a non-surgical approach, while more recent trials have shown superior outcomes of surgical compared with non-surgical treatment in some cases. In this paper we systematically review the systematic reviews on the topic that were published before January 2019 and which followed the PRISMA statement, and propose an algorithm for the management of these fractures. Read More

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http://dx.doi.org/10.1016/j.bjoms.2020.03.014DOI Listing

Osteosynthesis of the Mandibular Condyle With Magnesium-Based Biodegradable Headless Compression Screws Show Good Clinical Results During a 1-Year Follow-Up Period.

J Oral Maxillofac Surg 2020 Mar 3. Epub 2020 Mar 3.

Resident, Department of Oral Maxillofacial Surgery, University Hospital Carl Gustav Carus, Dresden, Germany.

Purpose: The use of titanium-based implants in mandibular condyle fractures can require implant removal because of screw penetration through the condylar surface. The use of biodegradable implants can avoid a second operation for implant removal and the associated possible complications. We investigated the clinical and radiologic outcomes of osteosynthesis of mandibular condyle fractures (MCFs) with biodegradable magnesium-based compression screws. Read More

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http://dx.doi.org/10.1016/j.joms.2020.02.025DOI Listing

Study of fixation of a mandibular plate for favourable fractures of the mandibular angle: numerical predictions.

Br J Oral Maxillofac Surg 2020 Mar 26. Epub 2020 Mar 26.

Univ. de Bordeaux, Institut de Mécanique et d'Ingénierie, CNRS UMR 5295, Talences, FR-33405.

Fractures of the mandibular angle have been well-described and, in most societies, their incidence is decreasing. In this study we analysed the stabilisation of fractures using a single plate (standard or optimised model). The finite element model was developed based on a mandibular computed tomographic scan, together with a miniplate from DePuy Synthes and an optimised plate. Read More

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http://dx.doi.org/10.1016/j.bjoms.2020.03.009DOI Listing

Changing trabecular patterns in panoramic radiographs of Swedish women during 25 years of follow-up.

Dentomaxillofac Radiol 2020 Apr 1:20190494. Epub 2020 Apr 1.

Department of Behavioral and Community Dentistry, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Box 450, 405 30 Gothenburg, Sweden.

Objectives: The radiographic trabecular pattern on dental radiographs may be used to predict fractures. The aim of this study was to analyze longitudinal changes in the mandibles of 145 females between 1980 and 2005.

Methods: Panoramic radiographs were obtained in 1980 and 2005. Read More

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http://dx.doi.org/10.1259/dmfr.20190494DOI Listing

Long-term Stability after Reduction of Mandible Fracture by Keyhole Plate: Evaluation at the Time of Plate Removal.

Maxillofac Plast Reconstr Surg 2020 Dec 16;42(1). Epub 2020 Mar 16.

1Department of Oral and Maxillofacial Surgery, Hallym University College of Medicine Sacred Heart Hospital, Anyang, Republic of Korea.

Background: Various types of miniplates have been developed and used for the reduction of facial bone fractures. We introduced Yang's Keyhole (YK) plate, and reported on its short-term stability. The purpose of this study was to evaluate the long-term stability of the YK plate, as a follow-up study, by examining the patients who had used the YK plate among the patients with the reduction of mandible fractures and who visited for plate removal. Read More

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http://dx.doi.org/10.1186/s40902-020-00251-wDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7076102PMC
December 2020

The high sub-mandibular approach: Our experience about 496 procedures.

J Stomatol Oral Maxillofac Surg 2020 Mar 20. Epub 2020 Mar 20.

Department of Oral and Maxillofacial Surgery, University Hospital of Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France; Nanomedicine Lab Imagery and Therapeutics (EA 4662), University of Franche-Comté, 19, rue Ambroise-Paré, 25000 Besançon, France. Electronic address:

Introduction: The potential drawbacks of surgical approaches to neck and base fractures of the mandibular condyle (visible scare, facial nerve injury) are still considered by many surgeons as a brake for open reduction and internal fixation. The aim of our study was to analyze the results in terms of access, scare quality and complications that could be noticed in a 12 years period of time with the use of the high sub-mandibular approach (HSMA) we first described in 2006 for the surgical treatment of neck and base fractures.

Material And Method: All the files of patients operated on for condylar neck and base fractures approached by mean of a HSMA between January 2006 and December 2018 in our department and containing information concerning age, sex, type of fracture, kind of osteosynthesis material, operating time, name of the surgeon, postoperative complication linked to the approach, scare quality at 6 months follow-up at least were included. Read More

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http://dx.doi.org/10.1016/j.jormas.2020.03.009DOI Listing

Radiologic Analysis of Surgically Treated Fractures of the Condylar Process by an Endoscopic-Assisted Transoral Approach.

J Oral Maxillofac Surg 2020 Feb 27. Epub 2020 Feb 27.

Consultant, Clinic for Cranio-Maxillofacial Surgery, University Hospital, Zurich, Switzerland.

Purpose: This study analyzed the radiologic outcomes of patients with unilateral mandibular condylar fractures treated with open reduction-internal fixation (ORIF) through a transoral approach.

Patients And Methods: In this retrospective study, the radiologic images of 40 patients who underwent open reduction-internal fixation through a transoral approach were presented to 2 independent examiners. All patients underwent the surgical procedure between January 2015 and December 2016 at the Department of Cranio-Maxillofacial Surgery at UniversitätsSpital Zürich and were included in a previous functional outcome study. Read More

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http://dx.doi.org/10.1016/j.joms.2020.02.024DOI Listing
February 2020

Facial fractures: classification and highlights for a useful report.

Insights Imaging 2020 Mar 19;11(1):49. Epub 2020 Mar 19.

Radiology Department, Hospital Josep Trueta, Avda França SN, 17001, Girona, Spain.

In patients with facial trauma, multidetector computed tomography is the first-choice imaging test because it can detect and characterize even small fractures and their associated complications quickly and accurately. It has helped clinical management and surgical planning, so radiologists must communicate their findings to surgeons effectively. In Le Fort fractures, there is a breach between the pterygoid plates and the posterior maxilla. Read More

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http://dx.doi.org/10.1186/s13244-020-00847-wDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7082488PMC

Concomitant injuries and complications according to categories of pan-facial fracture: a retrospective study.

J Craniomaxillofac Surg 2020 Apr 29;48(4):427-434. Epub 2020 Feb 29.

Dept. of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, 2177 Dalgubeol-daero, Jung-gu, Daegu, 41940, Republic of Korea. Electronic address:

Purpose: The purpose of this study was to investigate concomitant injuries and complications in patients with panfacial fracture (PF) according to patterns of PF.

Materials And Methods: PF is defined as fractures involving at least three of the four facial parts (frontal, upper midface, lower midface, and mandible). The data for this study were retrospectively analysed. Read More

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http://dx.doi.org/10.1016/j.jcms.2020.02.018DOI Listing

Birmingham mandible and midface rules: determining variables for inclusion in a clinical predictor rule.

Authors:
R Elledge

Br J Oral Maxillofac Surg 2020 Mar 16. Epub 2020 Mar 16.

University Hospitals Birmingham NHS Foundation Trust. Electronic address:

Staff in emergency departments often rely on heuristics and algorithms to make clinical decisions on a wide range of problems. Clinical predictor rules such as the Ottawa ankle rules serve to reduce the need for unnecessary radiographs and help to give frontline staff the confidence to make a diagnosis. The current study aimed to achieve consensus on the variables to test for inclusion in a set of predictor rules for suspected fractures of the mandible and midface. Read More

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http://dx.doi.org/10.1016/j.bjoms.2020.03.003DOI Listing

Biomechanical Testing of a Calcium Phosphate-Phosphoserine-Based Mineral-Organic Adhesive for Non-invasive Fracture Repair of Mandibular Fractures in Dogs.

Front Vet Sci 2020 27;7:59. Epub 2020 Feb 27.

Veterinary Dentistry and Oral Surgery, Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, United States.

Mandibular fracture repair is complicated by limited availability of bone as well as the presence of the neurovascular bundle and an abundance of tooth roots. Fractures at the location of the mandibular first molar teeth are common and it can be particularly challenging to apply stable fixation. Non-invasive fracture repair techniques utilize intraoral placement of fixation devices typically involving polymerized composites and/or interdental wiring. Read More

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http://dx.doi.org/10.3389/fvets.2020.00059DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7058112PMC
February 2020

Novel finite element-based plate design for bridging mandibular defects: Reducing mechanical failure.

Oral Dis 2020 Mar 16. Epub 2020 Mar 16.

Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands.

Introduction: When the application of a free vascularised flap is not possible, a segmental mandibular defect is often reconstructed using a conventional reconstruction plate. Mechanical failure of such reconstructions is mostly caused by plate fracture and screw pull-out. This study aims to develop a reliable, mechanically superior, yet slender patient-specific reconstruction plate that reduces failure due to these causes. Read More

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http://dx.doi.org/10.1111/odi.13331DOI Listing

Lingual Application of Pre-Bent Reconstruction Plate for Segmental Mandibular Defect: Easy and Accurate Method Through the Buccal Drilling Approach Using Computer-Aided Design/Computer-Aided Manufacturing Surgical Guides.

J Craniofac Surg 2020 May/Jun;31(3):851-852

Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, South Korea.

To prevent or treat for complications of reconstruction plate, such as metal plate fracture, plate exposure, and formation of skin fistula, the use of reconstruction plates on the mandibular lingual aspect has been introduced. However, this method increases the difficulty of surgery and lengthens the surgery time. In this study, the authors aimed to present a method to apply for reconstruction plates on the lingual side of the mandible to overcome the complications associated with the use of these plates. Read More

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http://dx.doi.org/10.1097/SCS.0000000000006183DOI Listing

Differences in Facial Fracture Patterns in Pediatric Nonaccidental Trauma.

J Craniofac Surg 2020 Mar 13. Epub 2020 Mar 13.

Division of Plastic and Reconstructive Surgery.

Background: The purpose of this study was to characterize differences in facial fracture injury patterns among pediatric patients at highest risk of abusive head trauma/nonaccidental trauma (age ≤ 5 years).

Methods: Using the National Trauma Databank from 2007 to 2015, patients (age ≤ 5 years) suffering facial fractures were included. Demographics and injury characteristics were compared between those sustaining accidental versus nonaccidental trauma (NAT). Read More

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http://dx.doi.org/10.1097/SCS.0000000000006294DOI Listing