3604 Oral Behaviors Checklist: Reliability of Performance in Targeted Behaviors
M.R. MARKIEWICZ, R. OHRBACH, and W.D. MCCALL, Jr., University at Buffalo, NY, USA

Objective: The Oral Behaviors Checklist (Ohrbach et al, 2004) is a self-report scale for identifying and quantifying the frequency of jaw overuse behaviors. The assessment of such behaviors is potentially compromised by uncertainty in the labeling of a behavior; for example, what behavior does “clenching” actually refer to? Our aim was to assess the consistency of intentional behavioral performance as an index of whether each individual understood the meaning of the behavioral terms. Low reliability would be interpreted as poor understanding, whereas high reliability would be interpreted as concrete understanding.

Methods: Surface EMG (2 Khz sampling) was used to measure bilateral masseter, temporalis, and suprahyoid muscles (for assessment of oral behaviors) and to measure biceps muscle (reference task of biceps-curl) in 27 TMD cases and 26 controls. Subjects were asked to perform biceps-curl using 5 weights with explanation and specified oral behaviors (e.g., “clench”, “yawn”) without explanation, EMG was obtained during two sequential trials with baseline trials preceding, data were reduced off-line, and Pearson correlation was used (alpha 0.05).

Results: Biceps-curl performance resulted in assignments of {high, medium, low} for linearity-reliability based on inspection and correlation. Overall, test-retest reliability of the 10 performed oral behaviors ranged from 0.8 to 0.9 for all three muscle groups. Across tasks, elevator muscle reliability of cases was 0.87 compared to 0.75 for controls; group values for suprahyoid muscles were similar. Reliability of jaw performance behaviors was slightly higher in subjects with lower biceps-curling linearity.

Conclusions: Individual subjects performed each task at a high level of consistency, and that performance was not appreciably altered by being a case vs control or by the performance level of a reference task, indicating that each individual understood well a meaning of each oral behavior-related word. Research supported by NIH-DE-13331 and T-35-DE-07106.

Seq #375 - Craniomandibular Muscles and Oral Function
2:00 PM-4:00 PM, Saturday, 12 March 2005 Baltimore Convention Center Exhibit Hall E-F

Back to the Neuroscience / TMJ Program
Back to the IADR/AADR/CADR 83rd General Session (March 9-12, 2005)

Top Level Search