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https://www.readbyqxmd.com/read/28222947/comparison-of-the-effectiveness-of-three-different-treatment-methods-for-temporomandibular-joint-disc-displacement-without-reduction
#1
U Tatli, M E Benlidayi, O Ekren, F Salimov
The aim of this study was to compare the effectiveness of three treatment methods for unilateral temporomandibular joint (TMJ) disc displacement without reduction (DDwoR). One hundred and twenty patients with unilateral TMJ DDwoR were assigned randomly to one of three treatment groups (40 patients in each): group 1 received arthrocentesis, group 2 received stabilization splint therapy following arthrocentesis, and group 3 received splint therapy only. The groups were compared in terms of pain (visual analogue scale), joint function (maximum mouth opening and laterotrusive movements), disability and psychological status (validated questionnaire), and success rates...
February 17, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28176754/magnetic-resonance-imaging-mri-evaluation-for-anterior-disc-displacement-of-the-temporomandibular-joint
#2
Zhongjun Yang, Mingguo Wang, Yingwei Ma, Qingguo Lai, Dongdong Tong, Fenghe Zhang, Lili Dong
BACKGROUND Magnetic resonance imaging (MRI) is the criterion standard imaging technique for visualization of the temporomandibular joint (TMJ) region, and is currently considered the optimum modality for comprehensive evaluation in patients with temporomandibular joint disorder (TMD). This study was aimed at finding the value of MRI in pre-clinical diagnosis of TMJ disc displacement. MATERIAL AND METHODS Patients primarily diagnosed as having anterior disc displacement by clinical symptoms and X-ray were selected in the present study...
February 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28157490/effect-of-flat-plane-splint-vertical-thickness-on-disc-displacement-without-reduction-a-retrospective-matched-cohort-study
#3
Shang-Lun Lin, Shang-Liang Wu, Shun-Yao Ko, Ching-Yu Yen, Jung-Wu Yang
PURPOSE: The efficacy of occlusal splints for treating temporomandibular disorders (TMDs) remains controversial. This study aimed to evaluate and compare the effectiveness of flat-plane splints (FPSs) with a vertical thickness of 3 mm (VT3) and 5 mm (VT5) in treating disc displacement without reduction (DDWOR). MATERIALS AND METHODS: This retrospective matched-cohort study selected the study participants from 400 TMD patients treated in the Department of Oral and Maxillofacial Surgery of Tainan Sin-Lau Hospital, Tainan, Taiwan, between August 2013 and July 2015...
January 5, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28129794/three-dimensional-morphological-changes-of-the-temporomandibular-joint-and-functional-effects-after-mandibulotomy
#4
Mohammed A Q Al-Saleh, Kumaradevan Punithakumar, Manuel Lagravere, Pierre Boulanger, Jacob L Jaremko, John Wolfaardt, Paul W Major, Hadi Seikaly
BACKGROUND: The midline and paramedian mandibulotomy are surgical procedures that divide the mandibular bone into two halves and disconnects the condylar heads of the TMJ from each other. This study aimed to prospectively evaluate the temporomandibular joint (TMJ) functional and morphological changes after mandibulotomy using a reconstructed 3D models of the TMJ. METHODS: Sixteen adult patients diagnosed with oral and oropharyngeal tumors with planned surgical mandibulotomy (test group, 9 patients) or transoral (control group, seven patients) treatments were included in the study...
January 28, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28116429/-mandibular-manipulation-technique-followed-by-exercise-therapy-and-occlusal-splint-for-treatment-of-acute-anterior-tmj-disk-displacement-without-reduction
#5
Xin Jiang, Shuai Fan, Bin Cai, Zhong-Yi Fang, Li-Li Xu, Li-Kun Liu
PURPOSE: This study aimed to evaluate the short-term efficiency of mandibular manipulation technique combined with exercise therapy and splint treatment of acute anterior TMJ disc displacement without reduction (ADDW), and TMJ disc-condyle relationship by magnetic resonance imaging (MRI). METHODS: Forty-four patients (37 females, 7 males) were diagnosed as acute ADDW and confirmed by MRI. All patients underwent mandibular manipulation, combined with exercise therapy, including jaw movement exercise, stabilization exercise, disc reposition exercise, and splint treatment...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28108240/degenerative-temporomandibular-joint-changes-associated-with-recent-onset-disc-displacement-without-reduction-in-adolescents-and-young-adults
#6
Jie Lei, Jianhui Han, Muqing Liu, Yi Zhang, Adrian U-Jin Yap, Kai-Yuan Fu
This study evaluated the occurrence of degenerative temporomandibular joint (TMJ) changes in adolescents and young adults with recent on-set disc displacement without reduction (DDw/oR) using high-resolution cone beam computed tomography (CBCT). The associations between types of osteoarthrosis (OA) changes and clinical factors including disease duration were also examined. CBCT and clinical data of 300 patients (84.70% females, mean age 20.93 ± 4.77 years) diagnosed with unilateral DDw/oR (≤12 months) based on RDC/TMD were acquired...
December 21, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28068790/temporomandibular-disorders-old-ideas-and-new-concepts
#7
Thomas List, Rigmor Højland Jensen
Background Temporomandibular disorders (TMD) is an umbrella term for pain and dysfunction involving the masticatory muscles and the temporomandibular joints (TMJs). TMD is the most common orofacial pain condition. Its prominent features include regional pain in the face and preauricular area, limitations in jaw movement, and noise from the TMJs during jaw movements. TMD affects up to 15% of adults and 7% of adolescents. Chronic pain is the overwhelming reason that patients with TMD seek treatment. TMD can associate with impaired general health, depression, and other psychological disabilities, and may affect the quality of life of the patient...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28064032/tmj-energy-densities-in-healthy-men-and-women
#8
L R Iwasaki, Y M Gonzalez, Y Liu, H Liu, M Markova, L M Gallo, J C Nickel
OBJECTIVE: Cartilage fatigue, due to mechanical work, may account for the early development of degenerative joint disease (DJD) in the temporomandibular joint (TMJ), and why women are three times more likely to be afflicted. This study tested for gender differences in mechanical energy densities in women and men with healthy TMJs. DESIGN: Eighteen women and eighteen men gave informed consent. Research diagnostic criteria including imaging were used to ensure that subjects' TMJs were normal, without disc displacement or signs of DJD...
January 5, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28005732/assessment-of-the-relationship-between-clinicophysiologic-and-magnetic-resonance-imaging-findings-of-the-temporomandibular-disorder-patients
#9
Salih Onur Basat, Mehmet Surmeli, Oguzhan Demirel, Fatih Ceran, Funda Akoz Saydam, Karaca Basaran
Temporomandibular joint disorders (TMJDs) are a complex group of disorders that comprise dysfunctions of the temporomandibular joint (TMJ). In this study, we analyzed the objective and subjective findings of the TMJD patients by using Helkimo anamnesis (Ai) and clinical dysfunction (Di) indices, and tried to document a relation between these findings and magnetic resonance imaging (MRI) results.Ninety-eight patients who were admitted to our clinic were included in the study. The clinical evaluation was performed by using Ai, an 8-question-survey based on the objective symptoms of patients; Di, concluded as the score of 5 objective measurements of physical examination...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27973713/subjects-with-temporomandibular-joint-disc-displacement-do-not-feature-any-peculiar-changes-in-body-posture
#10
T Rocha, M A Castro, L Guarda-Nardini, D Manfredini
The presence of body posture changes among patients with temporomandibular disorders (TMD) has been a controversial topic in dentistry. Based on that, the aim of this study was to assess postural features of pain-free subjects with internal derangement of the temporomandibular joint (TMJ), viz. disc displacement, when compared to subjects with normal disc position. A total of 21 subjects with unilateral, pain-free TMJ disc displacement (DD) and 21 subjects without any TMD signs of symptoms were assessed for body posture changes by means of posturographic evaluation of several body segments and postural balance reactions through the centre of mass during jaw movements using a balance platform...
February 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/27918900/differential-gene-expression-in-the-condylar-cartilage-of-growing-rabbits-with-temporomandibular-joint-anterior-disk-displacement-a-transcriptomic-study
#11
Shuhua Wang, Liquan Deng, Ye Li, Huiling Wu, Zhiyuan Gu
Internal derangement (ID) in the temporomandibular joint (TMJ) comprises a group of clinical problems with relatively high prevalence. However, the temporal changes in gene expression of condylar cartilage during continuous ID remain unclear. The aim of the current study is to investigate by microarray analysis, the differentially-expressed gene pattern in condylar cartilage of rabbits with ID from one to eight weeks of ID progression. Histological results (hematoxylin and eosin staining) indicated that abnormal collagen fiber arrangements, fragmentation of fibrils, and inflammatory cell-infiltration were detected from one to four weeks in joint disc specimens, while newly formed vessels, mucoid degeneration, meniscal tears, and the presence of osteoclasts and osteoblasts were observed at later time points...
February 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/27912927/effect-of-an-early-supervised-rehabilitation-programme-compared-with-home-based-exercise-after-temporomandibular-joint-condylar-discopexy-a-randomized-controlled-trial
#12
N Capan, S Esmaeilzadeh, A Karan, D Dıracoglu, U Emekli, A Yıldız, A Baskent, C Aksoy
The goal of rehabilitation after temporomandibular joint (TMJ) surgery is to achieve a normal range of motion. The aim of this study was to compare the impact of a comprehensive and early supervised rehabilitation programme with home-based exercise after TMJ condylar discopexy. Patients diagnosed with disc displacement without reduction were randomized to the study and control groups. After baseline assessments, the same surgical condylar discopexy procedure was applied to both groups. Following surgery, the study group patients underwent a supervised exercise programme conducted by a physiotherapist in the outpatient clinic...
March 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27889535/does-temporomandibular-joint-pathology-with-or-without-surgical-management-affect-the-stability-of-counterclockwise-rotation-of-the-maxillomandibular-complex-in-orthognathic-surgery-a-systematic-review-and-meta-analysis
#13
Essam Ahmed Al-Moraissi, Larry M Wolford
PURPOSE: This study was designed to determine the stability of counterclockwise rotation (CCWR) of the maxillomandibular complex (MMC) in orthognathic surgery with or without surgical correction of coexisting temporomandibular joint (TMJ) pathology. MATERIALS AND METHODS: The authors implemented a systematic review and meta-analysis. A search of major databases through PubMed, EMBASE, and Cochrane CENTRAL was performed. Inclusion criteria were studies that analyzed CCWR of the MMC in regard to skeletal stability after orthognathic surgery in patients with or without pre-existing TMJ pathology that was or was not surgically corrected concomitantly...
November 4, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27856966/longitudinal-stability-of-common-tmj-structural-disorders
#14
E L Schiffman, M Ahmad, L Hollender, K Kartha, R Ohrbach, E L Truelove, L Zhang, J S Hodges, E Sommers, G C Anderson, Y M Gonzalez, X Guo, J O Look
The longitudinal course of temporomandibular joint (TMJ) disc displacement (DD) and degenerative joint disease (DJD) has never been conclusively described with magnetic resonance imaging and computed tomography, respectively. This 8-y observational study's objective was to assess the longitudinal stability of DD and DJD among 401 subjects. The Validation Project provided baseline measures; follow-up was performed in the TMJ Impact Project. With magnetic resonance imaging, 2 radiologists rendered a consensus diagnosis of normal/indeterminate, DD with reduction, or DD without reduction...
November 1, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/27855674/disk-displacement-eccentric-condylar-position-osteoarthrosis-misnomers-for-variations-of-normality-results-and-interpretations-from-an-mri-study-in-two-age-cohorts
#15
Jens C Türp, Anna Schlenker, Johannes Schröder, Marco Essig, Marc Schmitter
BACKGROUND: Clinical decision-making and prognostic statements in individuals with manifest or suspected temporomandibular disorders (TMDs) may involve assessment of (a) the position of articular disc relative to the mandibular condyle, (b) the location of the condyle relative to the temporal joint surfaces, and (c) the depth of the glenoid fossa of the temporomandibular joints (TMJs). The aim of this study was twofold: (1) Determination of the prevalence of these variables in two representative population-based birth cohorts...
November 17, 2016: BMC Oral Health
https://www.readbyqxmd.com/read/27765334/mri-alone-versus-mri-cbct-registered-images-to-evaluate-temporomandibular-joint-internal-derangement
#16
Mohammed A Q Al-Saleh, Noura A Alsufyani, Manuel Lagravere, Brian Nebbe, Hollis Lai, Jacob L Jaremko, Paul W Major
OBJECTIVE: To evaluate the effect of magnetic resonance imaging-cone beam computed tomography (MRI-CBCT) image registration on inter- and intraexaminer consistency when evaluating temporomandibular joint (TMJ) internal derangement compared to MRI alone. METHODS: MRI and CBCT images of 25 patients (50 TMJs) were obtained and coregistered using mutual-information rigid image registration via Mirada XD software. Two experienced radiologists independently and blindly evaluated two types of images (MRI alone and MRI-CBCT registered images) at two different times (T1 and T2) for TMJ internal derangement, based on sagittal and coronal articular disc position in relation to the head of the condyle and the posterior slope of the articular eminence...
November 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27747636/effect-of-bite-force-in-occlusal-adjustment-of-dental-implants-on-the-distribution-of-occlusal-pressure-comparison-among-three-bite-forces-in-occlusal-adjustment
#17
Sho Kayumi, Yoshiyuki Takayama, Atsuro Yokoyama, Nana Ueda
BACKGROUND: The purpose of this study was to investigate the influence of occlusal forces (the contractile force of masticatory muscles) exerted during occlusal adjustment on the distribution of the forces among teeth, implants, and temporomandibular joints (TMJs) in intercuspal clenching in cases with bilateral missing molars and premolars by using finite element analysis. METHODS: A three-dimensional finite element model of the mandible with eight implants in the premolar and molar regions was constructed...
December 2015: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27671371/changes-in-disc-status-in-the-reducing-and-nonreducing-anterior-disc-displacement-of-temporomandibular-joint-a-longitudinal-retrospective-study
#18
Ying Kai Hu, Chi Yang, Qian Yang Xie
Treatment procedures for anterior disc displacement (ADD) of temporomandibular joint (TMJ) are far from reaching a consensus. The aim of the study was to evaluate disc status changes of anterior disc displacement with reduction (ADDWR) and without reduction (ADDWoR) comparatively, to get a better understanding of the disease progress without intervention. This longitudinal retrospective study included 217 joints in 165 patients, which were divided into ADDWR group and ADDWoR group based on magnetic resonance imaging (MRI) examination...
September 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27670722/unbalanced-lateral-mandibular-deviation-associated-with-tmj-sound-as-a-sign-in-tmj-disc-dysfunction-diagnosis
#19
S E Widmalm, Y Dong, B X Li, M Lin, L J Fan, S M Deng
The aim was to study the characteristics of lateral mandibular horizontal deviations during opening-closing movements and their association with TMJ sounds of the clicking type. Subjects were 28 healthy volunteers and 38 patients diagnosed with MRI imaging as having TMJ disc dysfunction, 22 with disc displacement without (DD) and 16 as having disc displacement with reduction (DDR). TMJ sounds were recorded with miniature microphones placed in the ear canals, and jaw movements were documented with a kinesiograph...
December 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/27663975/prevention-of-adhesions-in-the-temporomandibular-joint-by-the-use-of-chitosan-membrane-in-goats
#20
H P Li, S F Sun, B T Fan, P Shen, J S Zheng, S Y Zhang
We evaluated the effects of chitosan membrane, a highly absorbable and viscous material, in the prevention of intra-articular adhesions after anchoring of the disc in the temporomandibular joints (TMJ) of six adult goats (12 joints). To simulate anterior displacement of the disc and TMJ trauma, we cut off the retrodiscal attachment and damaged the surface of the condylar bone, then randomly divided the goats into two groups: the control group (n=2) and the experimental group (n=4). In the experimental group we covered the condylar surfaces on both sides of the animals with chitosan membranes...
January 2017: British Journal of Oral & Maxillofacial Surgery
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