1,875 results match your criteria Dislocation Mandible


Patient-Specific 3D-Printed Miniplates for Free Flap Fixation at the Mandible: A Feasibility Study.

Front Surg 2022 14;9:778371. Epub 2022 Mar 14.

Department of Oral and Maxillofacial Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.

Background: This study was conducted to evaluate the feasibility, clinical outcomes, and accuracy of patient-specific 3D-printed miniplates for mandible reconstruction with fibula free flaps.

Methods: A feasibility study was conducted with 8 patients. Following virtual planning, patient-specific 1. Read More

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Expanding genotypic and phenotypic spectrums of LTBP3 variants in dental anomalies and short stature syndrome.

Clin Genet 2022 Mar 30. Epub 2022 Mar 30.

School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand.

Mutations in LTBP3 are associated with Dental Anomalies and Short Stature syndrome (DASS; MIM 601216), which is characterized by hypoplastic type amelogenesis imperfecta, hypodontia, underdeveloped maxilla, short stature, brachyolmia, aneurysm and dissection of the thoracic aorta. Here we report a novel (p.Arg545ProfsTer22) and a recurrent (c. Read More

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Cause-Effect Relationships between Painful TMD and Postural and Functional Changes in the Musculoskeletal System: A Preliminary Report.

Pain Res Manag 2022 28;2022:1429932. Epub 2022 Feb 28.

Department of Propaedeutic Physical Diagnostics and Dental Physiotherapy, Faculty of Medicine and Dentistry, Pomeranian Medical University, Szczecin, Poland.

Introduction: Temporomandibular disease (TMD) is a general term including a group of conditions that cause pain and dysfunction in the masticatory muscles, the temporomandibular joint (TMJ), and their related structures. The painful forms of these dysfunctions have become an increasing phenomenon among dental patients. A number of scientific publications indicated the relationship between the presence of postural dysfunctions and functional disorders of the masticatory system in humans. Read More

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Quantitative ultrasonographic diagnostics for midface and mandible fractures.

J Stomatol Oral Maxillofac Surg 2022 Feb 19. Epub 2022 Feb 19.

Department of Oral and Maxillofacial Surgery, Hannover Medical School, Klinik und Poliklinik für Mund-, Kiefer- und Gesichtschirurgie, Carl-Neuberg-Straße 1, Hannover 30625, Germany.

The aim of this study was to examine whether ultrasonography and three-dimensional radiological procedures produce significantly different measurement results with respect to fracture dislocation. This was a retrospective study of patients who were admitted to the department for oral and maxillofacial surgery of the Medical Highschool Hannover with facial skull fracture and underwent high-resolution computed tomography and ultrasonography imaging during a period from 1 January 2019 to 31 August 2019. A 10 mHz transducer was used for fracture imaging, and the largest dislocation of each fracture was measured. Read More

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February 2022

Static Balance in Participants with Temporomandibular Joint Disc Displacement without Reduction Versus Healthy Participants: A Cross-Sectional Study.

Med Sci Monit 2022 Feb 18;28:e934593. Epub 2022 Feb 18.

Department of Rehabilitation, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China (mainland).

BACKGROUND There is no consensus on the association between body posture and temporomandibular disorders (TMDs). This study aimed to assess differences in static balance between healthy participants and patients with temporomandibular joint disc displacement without reduction. MATERIAL AND METHODS Sixteen patients with temporomandibular joint disc displacement without reduction and 14 healthy participants were included. Read More

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February 2022

Surgical Reduction of Chronic Bilateral Traumatic Dislocation of the Mandibular Condyles With Erosion of the Middle Fossa Floor: Case Report With Surgical Video.

Oper Neurosurg (Hagerstown) 2022 03;22(3):144-149

Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, USA.

Background: Dislocation of the mandibular condyle (MC) is not a common condition, but when a traumatic case involves erosion of the middle fossa floor, it becomes a much more complicated and even rarer pathology.

Objective: To describe the management of traumatic dislocation of the MCs with erosion of the middle fossa floor. We provide a step-by-step surgical video demonstrating reestablishment of the condylar position and occlusion. Read More

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[Multimodal imaging analysis of the cyst like lesion of condyle in temporomandibular joint].

Zhonghua Kou Qiang Yi Xue Za Zhi 2022 Feb;57(2):142-148

Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China.

To investigate the imaging features of condylar cystic degeneration of temporomandibular joint (TMJ) by cone-beam CT (CBCT), spiral CT, MRI and radionuclide bone imaging. From January 2018 to December 2020, thirty-two patients with cyst-like lesions of condylein temporomandibular joint were examined by CBCT, spiral CT, MRI and radionuclide bone imaging at the Department of Oral and Maxillofacial Surgery in General Hospital of Chinese PLA. There were 12 males and 20 females involved, aged from 16 to 65 years with an average age of (33. Read More

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February 2022

Evaluating the efficacy of disc repositioning in the management of high condylar fracture - A prospective clinical trial.

J Craniomaxillofac Surg 2022 Apr 16;50(4):310-315. Epub 2021 Nov 16.

Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, India.

Aim: The aim of the study was to assess the role of disc repositioning in treating high condylar fractures.

Materials And Methods: Patients who reported to the Department of Oral and Maxillofacial surgery with high condylar fractures were recruited for this study, and randomized into two groups. The study group underwent 'disc repositioning during ORIF', while 'ORIF without disc repositioning' was performed for the control group. Read More

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Follow-up evaluation of temporomandibular joints using magnetic resonance imaging after mandibular trauma: Case series analysis of young adult males.

Dent Traumatol 2022 Apr 22;38(2):136-142. Epub 2021 Nov 22.

Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Korea.

Background/aims: A relationship between mandibular fractures and traumatic temporomandibular joint (TMJ) conditions has been suggested in many studies. Although magnetic resonance imaging (MRI) is the best option for a TMJ evaluation, few studies have evaluated the TMJ condition after a mandibular fracture using MRI follow-up. The aim of this study was to evaluate the TMJ for post-traumatic conditions following a mandibular fracture using follow-up MRI. Read More

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Acute soft tissue injury to the temporomandibular joint and posttraumatic assessment after mandibular condyle fractures: a longitudinal prospective MRI study.

Dentomaxillofac Radiol 2022 Mar 23;51(3):20210148. Epub 2021 Nov 23.

Department of Radiology, Asklepios Hospital Hamburg-Altona, Hamburg, Germany.

Objective: Evaluation of acute soft tissue injury of the temporomandibular joint (TMJ) with type I-VI fractures immediately after trauma and investigation of the longitudinal evolution including response to conservative treatment using MRI.

Methods: The joints of 24 patients with 33 condylar fractures (15 unilateral, nine bilateral) were imaged on a 1 Tesla MR system within the first 24 h post-trauma. 12 of these patients with 16 condylar fractures (eight unilateral, four bilateral) were clinically re-evaluated using MRI after 3 months of closed treatment. Read More

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Preclinical study of additive manufactured plates with shortened lengths for complete mandible reconstruction: Design, biomechanics simulation, and fixation stability assessment.

Comput Biol Med 2021 12 2;139:105008. Epub 2021 Nov 2.

KU Leuven, Department of Biomedical Sciences, OMFS-IMPATH Research Group & UZ Leuven (University Hospitals Leuven), Oral and Maxillofacial Surgery, Kapucijnenvoer 33, 3000, Leuven, Belgium.

Background: A combination of short titanium plates fabricated using additive manufacturing (AM) provides multiple advantages for complete mandible reconstruction, such as the minimisation of inherent implant deformation formed during AM and the resulting clinical impact, as well as greater flexibility for surgical operation. However, the biomechanical feasibility of this strategy is still unclear, and therefore needs to be explored.

Method: Three different combinations of short mandible reconstruction plates (MRPs) were customised considering implant deformation during the AM process. Read More

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December 2021

Classification of temporomandibular joint internal derangement based on magnetic resonance imaging and clinical findings of 435 patients contributing to a nonsurgical treatment protocol.

Sci Rep 2021 10 22;11(1):20917. Epub 2021 Oct 22.

Faculty of Medicine for Men, Al Azher University, Cairo, Egypt.

This prospective clinical study aimed to establish a new classification system for TMJ internal derangement based on MRI in correlation with clinical findings contributing to a nonsurgical treatment protocol. A consecutive sample of 435 internal derangement patients was enrolled in the study. Clinical and MRI studies were used to establish the new classification system. Read More

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October 2021

MRI-based observation of the size and morphology of temporomandibular joint articular disc and condyle in young asymptomatic adults.

Dentomaxillofac Radiol 2022 Mar 13;51(3):20210272. Epub 2021 Oct 13.

Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, P. R. China.

Objective: To investigate the size and morphology of the temporomandibular joint (TMJ) articular disc and condyle in young asymptomatic adults by using magnetic resonance imaging (MRI) and to provide a reference for clinical diagnosis and scientific study of temporomandibular disorders (TMD).

Methods: Overall, 93 undergraduate volunteers without TMD were enrolled from the freshmen pool at the Qingdao University. All participants underwent MRI of the oblique sagittal and oblique coronal TMJ planes. Read More

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What Are Possible Contributors to Associated Dental Injury in Mandibular Fractures?

J Oral Maxillofac Surg 2022 Jan 11;80(1):127-136. Epub 2021 Sep 11.

Professor, Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan.

Purpose: Among previous reports on dental injuries associated with mandibular fractures, there are few investigating the conditions under which dental injuries commonly occur. The aim of this study was to determine specific characteristics of mandibular fractures accompanied by dental injuries.

Methods: This retrospective cohort study included dentate patients with mandibular fractures treated at a tertiary trauma center between 2011 and 2019. Read More

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January 2022

Mini suture anchor: An effective device for reduction and fixation of displaced temporomandibular joint disc with intracapsular condylar fracture.

Chin J Traumatol 2022 Jan 18;25(1):49-53. Epub 2021 Aug 18.

State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China. Electronic address:

Purpose: The main aim is to provide clinical reference for the application of mini suture anchor in the reduction and fixation of displaced temporomandibular joint (TMJ) disc with intracapsular condylar fracture.

Methods: From October 2018 to October 2019, 21 patients (31 sides) with intracapsular condylar fractures and articular disc displacement from West China Hospital of Stomatology, Sichuan University were included. The selection criteria were: (1) mandibular condylar fractures accompanied by displacement of the TMJ disc, confirmed by clinical examination, CT scan and other auxiliary examinations; (2) indication for surgical treatment; (3) no surgical contraindications; (4) no previous history of surgery in the operative area; (5) no facial nerve injury before the surgery; (6) informed consent to participate in the research program and (7) complete data. Read More

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January 2022

Bilateral globe luxation with multiple facial fractures: what next?

BMJ Case Rep 2021 Sep 3;14(9). Epub 2021 Sep 3.

Ophthalmology, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi, India

Luxation of the globe is a rare, vision-threatening event that can presently spontaneously or following trauma. A 35-year-old man presented with bilaterally luxated globe, postroad traffic accident. On imaging, bilateral LeFort fracture type 1, 2 and 3 with palatal split along with nasal bone and orbital floor fracture. Read More

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September 2021

Mandibular Reconstruction with Scapular Systems: A Single-Center Case Series Involving 208 Flaps.

Plast Reconstr Surg 2021 09;148(3):625-634

From the Department of Oral and Maxillofacial Surgery, Division of Oral Health Sciences, Tokyo Medical and Dental University.

Background: The scapular flap is the most versatile composite flap used for mandibular reconstruction. The purpose of this study was to review and summarize findings of cases of mandibular reconstruction with a scapular flap and describe associated outcomes and complications.

Methods: A total of 208 microvascular scapular free flaps were performed for mandibular reconstruction in a total of 205 patients from 2003 to 2018. Read More

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September 2021

Bilateral Posterior Dislocation of Mandibular Condyle: A Rare Entity in Maxillofacial Injuries.

J Maxillofac Oral Surg 2021 Sep 9;20(3):389-393. Epub 2020 Jun 9.

Department of Oral and Maxillofacial Surgery, Swami Vivekanand Subharti University, NH-58, Delhi-Haridwar, Meerut Bypass Rd, Meerut, Uttar Pradesh 250005 India.

Background: Dislocation of the mandibular condylar head refers to ectopic positioning of the intact condylar head out of the glenoid fossa. Most commonly reported anterior dislocation results from anteromedial pull of the lateral pterygoid muscle and laxity of the surrounding tissue with advanced age.

Purpose: This case report brings forth a unique case of bilateral posterior condylar dislocation in an edentulous patient who reported after 4 weeks of traumatic injury. Read More

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September 2021

Mini-Anchors to Surgically Treat the Chronic Mandibular Dislocation.

J Oral Maxillofac Surg 2022 Jan 17;80(1):47-54. Epub 2021 Jul 17.

Professor, Division of Oral and Maxillofacial Surgery, Unichristus University Center (UNICHRISTUS), Fortaleza, Brazil. Electronic address:

Purpose: Evaluate the feasibility of using mini-anchors for the treatment of chronic mandibular dislocation and to identify the variables that affect the success of this approach.

Patients And Methods: A retrospective cohort study evaluated 9 patients with bilateral recurrent dislocation of the mandible (18 operated joints), treated by a mandibular translation control system using the mini-anchor technique. Data was collected using a Visual Analog Scale (VAS) for subjective parameters and measurements for objective parameters prior to surgery (T1) and at the longest available follow-up (T2) with a minimum of a 12 months interval. Read More

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January 2022

Association between Condylar Bone Density and Disk Displacement in the Temporomandibular Joint.

J Clin Densitom 2022 Apr-Jun;25(2):215-222. Epub 2021 Jul 24.

Department of Orthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea. Electronic address:

Measuring bone density (BD) is a common method of determining bone quality; however, the relationship between condylar BD and the occurrence of temporomandibular joint (TMJ) disorders has not been investigated. To address this knowledge gap, we aimed to investigate condylar BD in terms of TMJ disk displacement (TMJ DD) using computed tomography (CT) and magnetic resonance imaging (MRI). We classified TMJ MRI results according to the position of the disk: normal disk position (Normal), anterior disk displacement with reduction (ADDR), and anterior disk displacement without reduction (ADDNR). Read More

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Automatic segmentation of the temporomandibular joint disc on magnetic resonance images using a deep learning technique.

Dentomaxillofac Radiol 2022 Jan 4;51(1):20210185. Epub 2021 Aug 4.

Department of Oral and Maxillofacial Radiology, Aichi Gakuin University School of Dentistry, Nagoya, Japan.

Objectives: The aims of the present study were to construct a deep learning model for automatic segmentation of the temporomandibular joint (TMJ) disc on magnetic resonance (MR) images, and to evaluate the performances using the internal and external test data.

Methods: In total, 1200 MR images of closed and open mouth positions in patients with temporomandibular disorder (TMD) were collected from two hospitals (Hospitals A and B). The training and validation data comprised 1000 images from Hospital A, which were used to create a segmentation model. Read More

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January 2022

High Submandibular Anteroparotid Approach for Open Reduction and Internal Fixation of Condylar Fracture.

Case Rep Dent 2021 9;2021:5542570. Epub 2021 Jul 9.

Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Tokyo, Japan.

Aim: There are several techniques for the treatment of mandibular condylar fractures. This is the first report of the high submandibular anteroparotid approach for open reduction and internal fixation of condylar fracture.

Materials And Methods: A 41-year-old woman fell indoors and injured her face. Read More

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A magnetic resonance imaging study on the temporomandibular joint disc-condyle relationship in young asymptomatic adults.

Int J Oral Maxillofac Surg 2022 Feb 28;51(2):226-233. Epub 2021 Jul 28.

Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China. Electronic address:

The aim of this study was to assess the temporomandibular joint (TMJ) disc-condyle relationship in asymptomatic young adults. Ninety-three volunteers aged 19-23 years without temporomandibular disorder (TMD) symptoms underwent TMJ magnetic resonance imaging (MRI). The condylar centre and apex methods were used to measure and analyse the position of the disc in the oblique sagittal plane, and the reliability of the two methods was compared by calculating the intra-class correlation coefficient (ICC). Read More

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February 2022

A logistic analysis prediction model of TMJ condylar erosion in patients with TMJ arthralgia.

BMC Oral Health 2021 07 24;21(1):374. Epub 2021 Jul 24.

University Clinic of Radiology, Medical University of Innsbruck, Innsbruck, Austria.

Background: In terms of diagnostic and therapeutic management, clinicians should adequately address the frequent aspects of temporomandibular joint (TMJ) osteoarthritis (OA) associated with disk displacement. Condylar erosion (CE) is considered an inflammatory subset of OA and is regarded as a sign of progressive OA changes potentially contributing to changes in dentofacial morphology or limited mandibular growth. The purpose of this study was to establish a risk prediction model of CE by a multivariate logistic regression analysis to predict the individual risk of CE in TMJ arthralgia. Read More

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A simple graded bite block for dynamic magnetic resonance imaging of the temporomandibular joint.

Dentomaxillofac Radiol 2022 Jan 8;51(1):20210119. Epub 2021 Jul 8.

Department of Dental and Maxillofacial Radiology, Faculty of Medicine and Dentistry, Medical University of Warsaw, Warsaw, Poland.

Objectives: New solutions for the dynamic assessment of the moving structures of the temporomandibular joint (TMJ), such as the intra-articular disc and the head of the mandible, are required for magnetic resonance imaging (MRI). Therefore, we propose a simple, graded bite block for dynamic MRI examination of the TMJ.

Methods: The bite block consists of three main functional elements: a groove for the biting edges of the upper incisors, steps with bite surfaces for the biting edges of the lower incisors and a handle for easy placement and control of the device. Read More

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January 2022

"Management of recurrent temporomandibular dislocation using orthodontic traction screws."

J Craniomaxillofac Surg 2021 Nov 22;49(11):1020-1025. Epub 2021 Jun 22.

Department of Oral and Maxillofacial Surgery, University Hospital, "12 de Octubre", Avenida de Córdoba s/n, 28041, Madrid, Spain.

Temporomandibular joint dislocation is defined as the loss of joint congruency between the mandibular condyle and the glenoid fossa of the temporal bone. Multiple therapeutic options have been proposed for the treatment of recurrent TMJ dislocation. The aim of this paper is to present two recently treated cases with a modification of Wolford's technique, replacing the Mitek anchors with orthodontic screws. Read More

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November 2021

Morphometric Analysis of the Glenoid Fossa in the Skull Base.

J Craniofac Surg 2022 Jan-Feb 01;33(1):319-321

Department of Radiology, Harran University School of Medicine, Sanliurfa, Turkey.

Objective: The aim of this study was to investigate the possible relationship between disc displacement and the presence of reduction by comparing condyle anteroposterior (AP) diameter, condyle height, mandibular fossa AP diameter, and mandibular fossa depth.

Methods: A total of 588 joints of 294 patients were included in the study for evaluation. Disc displacement and the presence of reduction, condyle AP diameter, condyle height, mandibular fossa AP diameter, and mandibular fossa depth were evaluated. Read More

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January 2022

Identification of malocclusion risk factors after closed treatment of condylar fractures using a novel three-dimensional computed tomography approach.

J Oral Sci 2021 Jun 2;63(3):283-285. Epub 2021 Jun 2.

Department of Dentistry and Oral Surgery, Tokyo Metropolitan Hiroo Hospital.

The condyle is the most common site of mandibular fracture. In the present study, an attempt was made to utilize three-dimensional computed tomography (3D-CT) images to evaluate mandibular condyle fractures and identify prognostic indicators of malocclusion after closed treatment. Accurate morphometric measurements were performed using 3D-CT images obtained before trauma, after trauma, and after healing. Read More

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Is the Temporomandibular Joints' Reciprocal Clicking Related to the Morphology and Position of the Mandible, as Well as to the Sagittal Position of Lower Incisors?-A Case-Control Study.

Int J Environ Res Public Health 2021 05 8;18(9). Epub 2021 May 8.

Department of Orthodontics, Medical University of Lodz, 90-419 Lodz, Poland.

The number of patients diagnosed with temporomandibular joint (TMJ) internal derangements, who are seeking orthodontic treatment, is increasing. The aim of the study was to assess the relationship between the presence of TMJ reciprocal clicking and the morphology and position of the mandible, and position of lower incisors, examined on the lateral cephalograms. Fifty patients diagnosed with reciprocal clicking in at least one of the TMJs and 55 patients with no symptoms of TMJ dysfunction were included in the study. Read More

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