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Temporomandibular joint treatment

J C Nickel, L R Iwasaki, Y M Gonzalez, L M Gallo, H Yao
Craniofacial secondary cartilages of the mandibular condyle and temporomandibular joint (TMJ) eminence grow in response to the local mechanical environment. The intervening TMJ disc distributes normal loads over the cartilage surfaces and provides lubrication. A better understanding of the mechanical environment and its effects on growth, development, and degeneration of the TMJ may improve treatments aimed at modifying jaw growth and preventing or reversing degenerative joint disease (DJD). This review highlights data recorded in human subjects and from computer modeling that elucidate the role of mechanics in TMJ ontogeny...
July 1, 2018: Journal of Dental Research
Fernanda Thomé Brochado, Luciano Henrique de Jesus, Vinicius Coelho Carrard, Angelo Luiz Freddo, Karen Dantur Chaves, Manoela Domingues Martins
The effectiveness of photobiomodulation (PBM) and manual therapy (MT), alone or combined (CT), were evaluated in pain intensity, mandibular movements, psychosocial aspects, and anxiety symptoms of temporomandibular disorder (TMD) patients. Fifty-one TMD patients were randomly assigned to three groups: the PBM group (n = 18), which received PBM with 808 nm, 100 mW, 13.3 J/cm2, and 4 J per point; the MT group (n=16) for 21 minutes each session on masticatory muscles and temporomandibular joint TMJ; and the CT group (n = 17), applied during twelve sessions...
July 10, 2018: Brazilian Oral Research
Pamela Maria Kusdra, Jose Stechman-Neto, Bianca Lopes Cavalcante de Leão, Paulo Francisco Arant Martins, Adriana Bender Moreira de Lacerda, Bianca Simone Zeigelboim
BACKGROUND: Patients with any type of temporomandibular disorder (TMD) may have several symptoms in their temporomandibular joints, masticatory muscles and associated structures, and may have otological symptoms such as tinnitus, ear fullness, ear pain, hearing loss, hyperacusis, and vertigo, which may be due to the anatomical proximity between the temporomandibular joint, muscles innervated by the trigeminal nerve, and ear structures. Objective: This study found a prevalence of ear complaints described in the medical records of patients (n = 485) at the Center for Diagnosis and Treatment of the Temporomandibular Joint and Dental-Facial Functional Alterations at Tuiuti University of Paraná (CDATM/UTP), with TMD evaluated by the Research Diagnostic Criteria/Temporomandibular Disorders (RDC/ TMD)...
June 1, 2018: International Tinnitus Journal
Zhan Shi, Jin Lv, Liu Xiaoyu, Li Wu Zheng, Xue-Wen Yang
Objective: The masticatory muscles are the most important contributor to bite force, and the temporomandibular joint (TMJ) receives direct occlusal loading. The present study aimed to investigate condylar remodeling after masseter muscle atrophy in rats. Methods: Sixty 5-week-old female Sprague-Dawley rats were divided into the following 3 groups: the control group, soft diet (SD) group, and botulinum toxin (BTX) group. The cross-sectional area (CSA) of the masseter muscles was investigated as well as atrogin-1/MuRF-1 expression...
2018: BioMed Research International
Shiva Safari, Arezoo Mahdian, Saeed Reza Motamedian
A simple overview of daily orthodontic practice involves use of brackets, wires and elastomeric modules. However, investigating the underlying effect of orthodontic forces shows various molecular and cellular changes. Also, orthodontics is in close relation with dentofacial orthopedics which involves bone regeneration. In this review current and future applications of stem cells (SCs) in orthodontics and dentofacial orthopedics have been discussed. For craniofacial anomalies, SCs have been applied to regenerate hard tissue (such as treatment of alveolar cleft) and soft tissue (such as treatment of hemifacial macrosomia)...
June 26, 2018: World Journal of Stem Cells
Yong-Ming Qiao, Yi-Ming Liu, Rui Li, Jian-Min Gong, Wei He
OBJECTIVE: This study aimed to retrospectively analyze temporomandibular joint dislocation by surgical treatment and evaluate the treatment effect. METHODS: From May 2012 to April 2016, a total of 17 cases of temporomandibular joint dislocation were surgically treated, including 8 cases of irreducible dislocation (ID) and 9 cases of recurrent dislocation (RD). Synovial injection of sclerosing agent by arthroscope was performed in 5 cases, 9 sides; augmentation of the articular eminence by titanium plate implantation was performed in 7 cases, 12 sides; iliac bone transplantation was performed in 1 case, 1 side; Medpore implantation was performed in 3 cases, 6 sides; and eminectomy and capsular tightening were performed in 1 case, 2 sides...
June 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
Z Huang, G S Huang, J Wu, T Sang
Objective: To assess the mandibular condylar growth using cone-beam CT (CBCT) in beagle dogs treated with Herbst appliance and exogenous prostaglandin E2 (PGE2) during late stage of growth. Methods: Twenty-four male beagle dogs aged 8 months were divided into four groups according to the random number table ( n= 6 in each group): natural growth group, mandibular protraction group (Herbst group), injected prostaglandin E2 group (PGE2 group), mandibular protraction plus injected prostaglandin E2 group (Herbst+PGE2 group)...
November 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
Gholamreza Shirani, Mahnaz Arshad, Xaniar Mahmoudi
This case report presents a 16-year-old boy with bilateral temporomandibular joint (TMJ) bony ankylosis due to trauma. The patient had undergone several unsuccessful therapeutic surgeries and was experiencing reduced mouth opening, difficulty in eating and speaking, poor oral hygiene, snoring, and depression. Bilateral gap arthroplasty and distraction osteogenesis (DO) were performed. After the surgery, we were able to move the osteodistractors forward and prevent the upward and backward movement of the proximal mandibular segment with the use of our custom-made Sh-device, which allowed bone growth and soft-tissue matching...
January 2018: Journal of Dentistry of Tehran University of Medical Sciences
H Rajantie, J Snäll, H Thorén
The aim of this prospective follow-up study was to clarify the incidence and characteristics of dysfunction of the temporomandibular joint (TMJ) in patients treated surgically for fractures of the zygomatic complex. Patients were evaluated on presentation and six months after injury to assess the function of the masticatory system using the Helkimo index, which incorporates two complementary subindices: the subjective symptomatic (anamnestic) index (Ai ) and the objective clinical dysfunction index (Di ). Forty-five patients (12 women and 33 men, mean (range) age 44 (21-83)years) completed the study...
June 30, 2018: British Journal of Oral & Maxillofacial Surgery
Marcelo Freire Matos, Ivson Souza Catunda, Jane Luzia Matos, Belmiro Cavalcanti Vasconcelos, Jorge Alfonso Learreta
The etiology of degenerative processes of the temporomandibular joint (TMJ) remains unclear, as they could be the result of trauma, infection, or autoimmune disease. Improving the diagnosis of autoimmune disease, whether the TMJ is the primary site or secondarily affected by a systemic disease, is of fundamental importance in selecting treatment that will address the causes rather than just relieve the symptoms. The purposes of this article are to discuss autoimmunity as an etiologic factor in degenerative processes of the TMJ by presenting clinical cases and to highlight the importance of imaging and serologic examinations for diagnosis...
July 2018: General Dentistry
Ramat Braimah, Abdurrazaq Taiwo, Adebayo Ibikunle, Taoreed Oladejo, Mike Adeyemi, Francis Adejobi, Siddiq Abubakar
Objectives: Temporomandibular joint ankylosis (TMJA) is a joint pathology caused by bony and/or fibrous adhesion of the joint apparatus, resulting in partial or total loss of function. Materials and Methods: This is a retrospective study conducted between 2012 and 2016 in the northwest region of Nigeria. The data retrieved includes gender, age, etiology of ankylosis, duration of ankylosis, laterality of ankylosis, type of imaging technique, type of airway management, types of incision, surgical procedure, mouth opening, interpositional materials used, and complications...
June 2018: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Sirmahan Çakarer, Sabri Cemil Isler, Basak Keskin Yalcin, Demirhan Diracoglu, Aysenur Uzun, Tolga Sitilci
Temporomandibular joint (TMJ) ankylosis is fusion or a bony union of the head of the condyle and the glenoid fossa by bony or fibrotic tissues. Due to the immobility of the TMJ, all mandibular movements get affected. Treatment goals are to allow nearly normal TMJ movements, restore symmetry of the face and occlusion, and promote growth and correction of deformity in children. The surgical techniques used to treat TMJ ankylosis are a gap or interpositional arthroplasty, joint reconstruction, and distraction osteogenesis...
January 2018: Annals of Maxillofacial Surgery
Vikas Dhupar, Francis Akkara, Pulkit Khandelwal, Archana Louis
Temporomandibular joint ankylosis may be true or false. Most commonly, trauma and inflammatory conditions lead to this condition. Zygomatico-coronoid ankylosis is a rare extra-articular (false) form of ankylosis of the jaw. This condition may follow treated or untreated midface fractures. Coronoid process locking may be overlooked because attention is generally focused on temporomandibular joint. A review of literature has reported 16 cases of this disorder. The true incidence of this condition may be even higher...
January 2018: Annals of Maxillofacial Surgery
Jameel Desai
Introduction: A retrospective analysis was done on patients who had undergone unilateral temporomandibular joint reconstruction using alloplastic temporomandibular prostheses. Aim: The study wished to highlight patient perceptions after surgery; specifically relating to pain, function, and aesthetics. Material and Method: Twenty three patients were assessed using a visual analogue scale (VAS) for pain, ability to eat, quality of life and scar appraisal...
January 2018: Annals of Maxillofacial Surgery
Ayesha Moin, Akshay D Shetty, T S Archana, Saurabh G Kale
Facial paralysis can be a devastating consequence resulting from blunt and penetrating trauma to the head and neck, as well as surgical injury, either accidental or due to involvement by tumor. In addition, the etiology can be attributed to a variety of other causes, ranging from infectious to metabolic, and is frequently idiopathic in nature. The incidence of facial nerve injury during temporomandibular joint (TMJ) surgeries varies among surgeons. There are many factors that could contribute to the injury of the temporal and zygomatic branches of the facial nerve...
January 2018: Annals of Maxillofacial Surgery
A Wojczyńska, L M Gallo, M Bredell, C S Leiggener
According to recognized guidelines, a total alloplastic replacement may be indicated to resolve temporomandibular pain and functional limitations in cases where conservative and less aggressive surgical management strategies have failed. It is broadly believed that, as a result of the surgical procedure, the function of the lateral pterygoid muscle is lost and so are the laterotrusive and protrusive jaw movements. Furthermore, the joint prosthesis design may not be conducive to lateral and protrusive movements...
June 25, 2018: International Journal of Oral and Maxillofacial Surgery
Rana M N El Qashty, Nesreen N Mohamed, Lobna R S Radwan, Fatma M M Ibrahim
The healing capacity of bone marrow mesenchymal stem cells (BMMSCs) has been evaluated in various studies. This study aimed to evaluate the effect of BMMSCs on the healing of temporomandibular joints (TMJs) with induced rheumatoid arthritis. Fifty healthy male Sprague Dawley rats were divided into three groups: group I (n = 10), negative control; group II (n = 20), positive control (induction of arthritis by adjuvant followed by intravenous injection of 0.1 ml of PBS); and group III (n = 20), intervention (as for group II but injected intravenously with 1 × 106  cells ml-1 of BMMSCs suspended in PBS)...
June 27, 2018: European Journal of Oral Sciences
Maria Bousnaki, Athina Bakopoulou, Danai Papadogianni, Nektaria-Marianthi Barkoula, Kalliopi Alpantaki, Aristidis Kritis, Maria Chatzinikolaidou, Petros Koidis
Tissue engineering (TE) may provide effective alternative treatment for challenging temporomandibular joint (TMJ) pathologies associated with disc malpositioning or degeneration and leading to severe masticatory dysfunction. Aim of this study was to evaluate the potential of chitosan/alginate (Ch/Alg) scaffolds to promote fibro/chondrogenic differentiation of dental pulp stem cells (DPSCs) and production of fibrocartilage tissue, serving as a replacement of the natural TMJ disc. Ch/Alg scaffolds were fabricated by crosslinking with CaCl2 combined or not with glutaraldehyde, resulting in two scaffold types that were physicochemically characterized, seeded with DPSCs or human nucleus pulposus cells (hNPCs) used as control and evaluated for cell attachment, viability, and proliferation...
June 26, 2018: Journal of Materials Science. Materials in Medicine
Ervina Sofyanti, Trelia Boel, Benny Soegiharto, Elza I Auerkari
Background: Temporomandibular joint disorder (TMD) includes symptoms of pain and dysfunction in the muscles of mastication and the temporomandibular joint. Differences in vertical condylar height, observed in the assessment of mandibular asymmetry, is a structural alteration that represents a risk factor for TMD. The study aimed to evaluate the association between TMD symptoms and vertical mandibular symmetry in young adult orthodontic patients in North Sumatra, Indonesia.  Methods: The cross-sectional study included 18-25-year-old (mean ± SD, 21...
2018: F1000Research
Xian-Hua Zhou, Zheng-Xiang Li, Na-Sha Ye
OBJECTIVE: To evaluate the clinical effects of manipulative reduction of cervical vertebrae combined with Pi needle release for the treatment of temporomandibular joint dysfunction. METHODS: From March 2012 to May 2017, 60 patients with temporomandibular joint dysfunction were treated by manipulative reduction of cervical vertebrae with Pi needle release, including 26 males and 34 females, ranging in age from 18 to 60 years old, with an average of 32.5 years old...
June 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
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