Title: 2060 - Chair-side TMD Risk Assessment – Result from the OPPERA Dataset


Hong Chen, University of Iowa College of Dentistry
Chandler Pendleton (Presenter)
University of Iowa College of Dentistry

Xian Jin Xie, University of Iowa College of Dentistry


Chair-side risk assessment for temporomandibular disorder (TMD) is overwhelmingly difficult for dental professionals due to the complex multifactorial biopsychosocial contributions to TMD. We have developed a simple chair-side risk screening model based on several phenotype characteristics. The objective of this study was to evaluate the risk screening method.

Secondary data analysis was performed using the Orofacial Pain: Prospective Evaluation and Risk Assessment (OPPERA) dataset. Based on the current evidence, fifteen questions related to systemic and local risk domains for jaw pain and functional interferences were extracted. Cox regression was utilized to determine significant predictors for first-onset of TMD using a sample of 2636 participants. Bivariate analyses were performed for each outcome variable of interest, and a variable was selected for multivariate modeling when its p-value ≤ 0.2. Backward elimination was used for variable selection for the final model. SAS 9.4 was utilized for all analyses.

Three orofacial related questions and number of comorbidities were determined to be significantly associated with development of TMD. An increase in the number of orofacial symptoms, the number of different types of headaches in the last year, and the number of comorbidities experienced led to an increased hazard of developing TMD with hazard ratios of 1.25 (1.14, 1.38), 1.20 (1.08, 1.33), and 1.15 (1.10, 1.20) respectively. In addition, participants that reported grinding or clenching their teeth during the day most or all of the time were at an increased hazard of developing TMD with a hazard ratio of 2.52 (1.46, 4.33).

Conclusions: The number of both pre-clinical orofacial symptoms and comorbidities, multiple types of headaches, and frequent daytime teeth grinding and/or clenching activities could be used for chair-side TMD risk assessment. Risk screening tools should be further developed to facilitate dental treatment planning regards to TMD.

Disclosure Statement:
The submitter must disclose the names of the organizations with which any author have a relationship, the nature of the relationship, and the clinical or research area involved. The following is submitted: NONE