Two cases of posterior open bite caused by the thickness of retrodiscal tissue in the temporomandibular joint

2014 ◽  
Vol 43 (9) ◽  
pp. 1104-1107 ◽  
Author(s):  
T. Hasegawa ◽  
Y. Shibuya ◽  
T. Minamikawa ◽  
T. Komori
Keyword(s):  
Temporomandibular Joint ◽  
Open Bite

scholarly journals Dental malocclusion is not related to temporomandibular joint clicking: a logistic regression analysis in a patient population

2013 ◽  
Vol 84 (2) ◽  
pp. 310-315 ◽  
Author(s):  
Daniele Manfredini ◽  
Giuseppe Perinetti ◽  
Luca Guarda-Nardini
Keyword(s):  
Logistic Regression ◽  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Open Bite ◽  
Final Model ◽  
Posterior Crossbite ◽  
The Difference ◽  
Contact Position ◽  
Dental Malocclusion

ABSTRACT Objectives: To assess the association of several dental malocclusion features with temporomandibular joint (TMJ) click sounds in a population of temporomandibular disorder (TMD) patients. Materials and Methods: Four hundred forty-two TMD patients (72% female; 32.2 ± 5.7 years, range 25–44 years) were divided into a TMJ clicking and a no-TMJ clicking group, based on the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) assessment. Seven occlusal features were recorded for each patient: (1) posterior crossbite, (2) overbite, (3) open bite, (4) overjet, (5) mediotrusive and (6) laterotrusive interferences and (7) retruded contact position to maximum intercuspation (RCP-MI) slide length. A logistic regression model was created to estimate the association of occlusal features with TMJ clicking. Results: The difference between the groups as for the prevalence of the various occlusal features was generally not statistically significant, with minor exceptions. Mediotrusive interferences (P  =  .015) and RCP-MI slide ≥2 mm (P  =  .001) were the two occlusal features that were associated with the probability of having TMJ clicking, even if the adjusted odds ratios for TMJ clicking were low for both variables (1.63 and 1.89, respectively). Moreover, the amount of variance in the prevalence of TMJ clicking that was predicted by the final model was as low as 4.5% (R2  =  0.045). Conclusions: Findings from the present investigation suggested that in a population of TMD patients, the contribution of dental malocclusion features to predict TMJ click sounds is minimal with no clinical relevance.

Coronoidoplasty in TMJ ankylosis treatment

2020 ◽  
Vol 13 (8) ◽  
pp. e235698
Author(s):  
Daniel Sathiya Sundaram Selvaraj ◽  
Ajish George Ommen ◽  
Jagadish Ebenezer
Keyword(s):  
Temporomandibular Joint ◽  
Treatment Protocol ◽  
Mouth Opening ◽  
Facial Asymmetry ◽  
Open Bite ◽  
Surgical Removal ◽  
Tmj Ankylosis ◽  
Temporomandibular Joint Ankylosis ◽  
The Past ◽  
Joint Ankylosis

A 2-year-old boy was brought by his parents with complaints of difficulty in mouth opening for the past one and half years. He had difficulty in chewing and was malnourished, with developing facial asymmetry. He was diagnosed with right side temporomandibular joint ankylosis. We planned for surgical removal of the ankylotic mass. But we modified the treatment protocol. Instead of doing coronoidectomy after aggressive excision of the ankylotic mass as advocated by Kaban, we did a ‘coronoidoplasty’ after aggressive excision of the ankylotic mass. Coronoidotomy or coronoidectomy is one of the rungs in the treatment ladder that is followed in surgical management of temporomandibular joint ankylosis. But one of the postoperative complications after coronoidectomy is the open bite. The difficulty to close the mouth becomes more pronounced when bilateral coronoidectomy is done. However, ‘coronoidoplasty’, as we have done for this patient retains the action of the temporalis muscle on the mandible in closing the mouth, yet removes the mechanical interference of the coronoid process. Postoperatively the patient was able to clench his teeth well, chew properly and there was no open bite.

scholarly journals Dental and facial characteristics of patients with juvenile idiopathic arthritis

2004 ◽  
Vol 59 (3) ◽  
pp. 93-98 ◽  
Author(s):  
Cynthia Savioli ◽  
Clovis A.A. Silva ◽  
H. Ching Lin ◽  
Lucia M.M.A. Campos ◽  
Eliane F.B.G. Prado ◽  
...  
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Oral Health ◽  
Temporomandibular Joint ◽  
Open Bite ◽  
Control Group ◽  
Healthy Children ◽  
Anterior Open Bite ◽  
Temporomandibular Joint Dysfunction ◽  
Facial Profile ◽  
Gingival Bleeding

OBJECTIVE: It has been shown that the temporomandibular joint is frequently affected by juvenile idiopathic arthritis, and this degenerative disease, which may occur during facial growth, results in severe mandibular dysfunction. However, there are no studies that correlate oral health (tooth decay and gingival diseases) and temporomandibular joint dysfunction in patients with juvenile idiopathic arthritis. The aim of this study is to evaluate the oral and facial characteristics of the patients with juvenile idiopathic arthritis treated in a large teaching hospital. METHOD: Thirty-six patients with juvenile idiopathic arthritis (26 female and 10 male) underwent a systematic clinical evaluation of their dental, oral, and facial structures (DMFT index, plaque and gingival bleeding index, dental relationship, facial profile, and Helkimo's index). The control group was composed of 13 healthy children. RESULTS: The mean age of the patients with juvenile idiopathic arthritis was 10.8 years; convex facial profile was present in 12 juvenile idiopathic arthritis patients, and class II molar relation was present in 12 (P = .032). The indexes of plaque and gingival bleeding were significant in juvenile idiopathic arthritis patients with a higher number of superior limbs joints involved (P = .055). Anterior open bite (5) and temporomandibular joint noise (8) were present in the juvenile idiopathic arthritis group. Of the group in this sample, 94% (P = .017) had temporomandibular joint dysfunction, 80% had decreased mandibular opening (P = 0.0002), and mandibular mobility was severely impaired in 33% (P = .015). CONCLUSION: This study confirms that patients with juvenile idiopathic arthritis a) have a high incidence of mandibular dysfunction that can be attributed to the direct effect of the disease in the temporomandibular joint and b) have a higher incidence of gingival disease that can be considered a secondary effect of juvenile idiopathic arthritis on oral health.

Pain, tenderness, mandibular mobility, and anterior open bite in relation to radiographic erosions in temporomandibular joint disease

1997 ◽  
Vol 55 (1) ◽  
pp. 18-22 ◽  
Author(s):  
Silvi Nordahl ◽  
Per Alstergren ◽  
Anna Appelgren ◽  
Björn Appelgren ◽  
Sören Eliasson ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Open Bite ◽  
Joint Disease ◽  
Anterior Open Bite ◽  
Mandibular Mobility ◽  
Temporomandibular Joint Disease
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