Search Our Scientific Publications & Authors

J Med Case Rep 2022 Jun 23;16(1):245. Epub 2022 Jun 23.

Department of Oral and Maxillofacial Surgery, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima, 734-8553, Japan.

Background: Noninvasive management by closed reduction is a desirable treatment for temporomandibular joint dislocation. However, reduction of long-standing temporomandibular joint dislocation is often difficult. Various conservative treatments have been attempted, but these often render poor outcomes. Read More

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

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

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

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

J Oral Facial Pain Headache 2021 Fall;35(4):326-331

Aims: To investigate the effectiveness of the auriculotemporal nerve block (ATNB) technique in conjunction with noninvasive therapies for the treatment of disc displacement with reduction (DDWR) or without reduction (DDWOR) in addition to arthralgia of the temporomandibular joint (TMJ).

Methods: The data of 22 patients diagnosed with DDWR and DDWOR whose clinical conditions did not improve despite noninvasive treatments were analyzed. ATNB was applied to each patient during the first visit and readministered at 1- and 4-week follow-up visits. Read More

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

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

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

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

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

Oral Surg Oral Med Oral Pathol Oral Radiol 2021 Jul 6;132(1):93-103. Epub 2021 Apr 6.

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

Objective: This study investigated the association of computed tomography (CT)-verified degenerative condylar changes with disk displacement (DD) and sex.

Study Design: Multidetector CT and cone beam CT scans of 165 condyles were evaluated for erosion, osteophyte formation, flattening, subcortical sclerosis, generalized sclerosis, subcortical defects, and loose joint bodies. Disk position was determined using magnetic resonance imaging. Read More

Clinics (Sao Paulo) 2021 26;76:e2840. Epub 2021 Apr 26.

Instituto de Ciencias Biomedicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, BR.

Objectives: Arthrocentesis is the simplest surgical intervention for the temporomandibular joint (TMJ). It can be performed on an outpatient basis at a low cost and with low morbidity. The objective is to release the articular disc by disrupting the adhesion formed between its surfaces and the mandibular fossa through hydraulic pressure generated by irrigation of the upper compartment of the TMJ. Read More

Int J Prosthodont 2021 Mar-Apr;34(2):173-182

Purpose: To compare the efficacy of low-dose laser therapy to that of conservative treatment using two different occlusal splints (stabilization and anterior repositioning splints) in patients with internal derangements of the temporomandibular joint (TMJ).

Materials And Methods: The study population consisted of patients with disc displacement with reduction diagnosed according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) Axis I and Axis II. In addition, disc displacement with reduction was confirmed in all patients using TMJ ultrasonography. Read More

Hua Xi Kou Qiang Yi Xue Za Zhi 2021 Apr;39(2):203-208

Key Laboratory for Biomechanical Engineering of Sichuan Province, Sichuan University, Chengdu 610065, China.

Objectives: To investigate the differences in the temporomandibular joints (TMJs) between patients with anterior disc displacement with reduction (ADDwR) and asymptomatic subjects by using 3D morphometric measurements.

Methods: A total of 15 patients with ADDwR and 10 asymptomatic subjects were enrolled. Then, 3D models of the maxilla and mandible were reconstructed using MIMICS 20. Read More

Diagnostics (Basel) 2021 Mar 28;11(4). Epub 2021 Mar 28.

Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba 80215-901, Brazil.

Temporomandibular joint dysfunction (TMD) is a multifactorial condition that impairs human's health and quality of life. Its etiology is still a challenge due to its complex development and the great number of different conditions it comprises. One of the most common forms of TMD is anterior disc displacement without reduction (DDWoR) and other TMDs with distinct origins are condylar hyperplasia (CH) and mandibular dislocation (MD). Read More

Head Face Med 2021 Mar 27;17(1):11. Epub 2021 Mar 27.

State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, 145# Western Changle Road, Xi'an, 710032, P.R. China.

Background: Temporomandibular joint (TMJ) 'closed lock' is a clinical condition causing TMJ pain and limited mouth opening (painful locking). Recent studies suggest an increasing prevalence of degenerative joint disease associated with the onset of TMJ closed lock in adolescents and young adults. Early interventions are recommended, but the curative effect of standard therapies remains controversial. Read More

Oral Surg Oral Med Oral Pathol Oral Radiol 2021 Apr 8;131(4):405-414. Epub 2020 Dec 8.

Resident, Department of Oral and Cranio-maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Huang Pu District, Shanghai, China.

Objective: The objective of this study was to evaluate the effect of combined temporomandibular joint (TMJ) disk repositioning by suturing through open incision and orthodontic functional appliance (OFA) treatment for adolescents with mandibular asymmetry.

Study Design: Adolescent patients (12-20 years old) with mandibular asymmetry combined with unilateral TMJ disk displacement without reduction were treated with disk repositioning by suturing through open incision with and without postoperative OFA. Magnetic resonance imaging and posteroanterior cephalometric radiographs (PA) were used to measure and compare the changes in condylar height, joint space, and menton deviation pre- and postoperatively. Read More

J Int Med Res 2021 Feb;49(2):300060521990530

Department of Temporomandibular Joint, State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China.

Objective: To describe the proportions of different osseous diagnoses in older patients with temporomandibular disorders (TMD) and to analyze the symptoms, disc position, occluding pairs, and facial skeletal characteristics of patients with bilateral osteoarthrosis (BOA) and bilateral normal joints (BNJ).

Methods: This retrospective cross-sectional study constituted 88 older patients (age ≥60 years). The osseous diagnosis, symptoms, disc position, occluding pairs, and facial skeletal characteristics were evaluated. Read More

Plast Reconstr Surg 2021 02;147(2):443-452

From the Department of Plastic and Reconstructive Surgery, The Johns Hopkins University School of Medicine; the Division of Plastic and Reconstructive Surgery, Department of Surgery, Yale School of Medicine; and Rush Medical College of Rush University.

Background: The purpose of this study was to examine injury patterns in pediatric mandibular condylar fractures and to propose and evaluate the validity of an institutional treatment algorithm for such fractures.

Methods: A retrospective chart review was conducted on pediatric patients who presented to the authors' institution with isolated mandibular condylar fractures between 1990 and 2016. Patients were categorized by dentition, and information regarding demographics, injury characteristics, management, and complications was compiled. Read More

Zhonghua Kou Qiang Yi Xue Za Zhi 2021 Feb;56(2):158-163

Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, China.

To compare changes of condylar height, disc length and displaced distance in adolescent temporomandibular joint (TMJ) disc displacement with or without arthroscopic discopexy. From September 2015 to November 2018, adolescents with magnetic resonance image (MRI) comfirmed disc displacement without reduction (DDwoR) were recruited in operation group (OG) and control group (CG) and were classified into five subgroups according to age (11-14 years, 15-16 years, 17-18 years, 19-20 years and 21-24 years). Changes of condylar height, disc length and displaced distance were measured before and after follow-up MRI. Read More

J Craniomaxillofac Surg 2021 Mar 5;49(3):177-183. Epub 2021 Jan 5.

Department of Stomatology,Shenzhen University General Hospital and Shenzhen University Clinical Medical Academy,Shenzhen University, 1098# XueYuan Road, NanShan District, Shenzhen City, 518055, GuangDong Province, China. Electronic address:

Background: Anterior Disc Displacement without Reduction (ADDwoR) in adolescence can result in condylar resorption which produces mandibular retrusion/deviation (MR/D) in adulthood. This study aims to analyze the therapeutic effect of simultaneous genioplasty and temporomandibular joint (TMJ) anchorage surgery on ADDwoR with MR/D patients.

Methods: During 2016-2018, ADDwoR with MR/D cases were included and underwent TMJ anchorage surgery and genioplasty guided by digital design. Read More

Int J Environ Res Public Health 2020 12 4;17(23). Epub 2020 Dec 4.

Gnathologic Division, Department of Oral and Maxillo-Facial Sciences, "Sapienza" University of Rome, Via Caserta 6, 00161 Rome, Italy.

The study aimed at assessing the effectiveness of the RA.DI.CA. Read More

J Craniofac Surg 2021 Jun;32(4):e384-e386

Department of Plastic and Reconstructive Surgery, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, South Korea.

Abstract: An 82-year-old man fell from a motorcycle and was admitted with superolateral dislocation of the bilateral mandibular condyles. The displaced condyles on the right and left were hooked in the posterior root of the zygomatic arch and in the temporal fossa beyond the zygomatic arch, respectively. There was a sagittal split fracture on the medial side of the right mandibular condyle and a right mandibular body fracture. Read More

J Craniofac Surg 2021 May;32(3):e293-e296

The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University.

Objective: This study aimed to assess whether ramus height is restored in children with extracapsular condylar fractures treated by conservative or surgery procedures.

Methods: The sample consisted of 35 children (collected consecutively) less than 12 years old who presented with extracapsular condylar fractures and treated within an 8-year period (June 2011 to April 2019). Data on the age, gender, date of injury, mechanism of trauma, location and pattern of mandibular condylar fracture, associated injuries and treatment methods were recorded and analyzed. Read More

Oral Surg Oral Med Oral Pathol Oral Radiol 2021 Mar 9;131(3):276-285. Epub 2020 Sep 9.

Adjunct Professor, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil.

Objective: The aim of this study was to compare the outcomes of 2 surgical treatment options: one for correction of class II malocclusion skeletal deformity and one for pre-existing temporomandibular joint (TMJ) disorders requiring orthognathic surgery (OS) for correction of dentofacial deformity.

Study Design: This retrospective study evaluated patients who underwent OS with maxillomandibular advancement (MMA) with or without concomitant TMJ surgery for articular disk repositioning (ADR). Patients were divided into 2 groups: group I (MMA) was treated with OS only (18 patients); and group II (MMA-ADR) was treated with OS and concomitant ADR (19 patients). Read More

J Craniofac Surg 2021 Jun;32(4):1440-1444

The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University.

Objective: This study aims to reveal the reconstruction process in pediatric patients with extracapsular condylar fractures after conservative treatment. We clarify that the "upright" position (or "recontouring" or favorable prognosis) of condyles is not a result of the anatomical reduction of the deviated condylar processes but originates from the remodeling of the skeleton. We also explore the related mechanism. Read More

Dis Markers 2020 12;2020:6351817. Epub 2020 Oct 12.

Department of Dental Prosthetics, Pomeranian Medical University, Szczecin, Poland.

Objectives: The aim of this study was to investigate the role of rs1643821 and TNF- rs1800629 as potential genetic factors regulating anterior disc displacement without reduction-mediated inflammatory pathway.

Background: The temporomandibular joint is a complex synovial joint that allows mandibular movement in three directions. Although temporomandibular disorders are widespread, limited data is available on the biochemical characteristics of the displaced disc and quality of the surrounding soft tissue. Read More

J Craniomaxillofac Surg 2020 Oct 14;48(10):933-941. Epub 2020 Aug 14.

Department of Maxillofacial and Oral Surgery (Head: Assoc. Prof. Andrej A. Kansky, DMD, PhD), University Medical Centre Ljubljana, Zaloška 2, SI-1000, Ljubljana, Slovenia. Electronic address:

Aim: The results of conservative treatment of pediatric dislocated (luxative) condyle fractures are usually unsatisfactory. We therefore decided to present and analyze the results of surgical treatment of these fractures.

Patients And Methods: Children with dislocated condyle fractures were treated surgically, with the approach always including opening the temporomandibular joint (TMJ). Read More

Tokai J Exp Clin Med 2020 Sep 20;45(3):152-155. Epub 2020 Sep 20.

Department of Oral and Maxillofacial Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo 192-0032, Japan.

Background: Temporomandibular joint (TMJ) dislocation can be categorized into three groups: acute, habitual or recurrent, and long-standing. Long-standing TMJ dislocation refers to a condition that persists for more than one month without reduction. Long-standing dislocation of the TMJ is rare and the most challenging and difficult to treat of the three. Read More