Diagnostic Tool Using the Diagnostic Criteria for Temporomandibular Disorders: A Randomized Crossover-Controlled, Double-Blinded, Two-Center Study

To assess the speed and accuracy of a checklist user interface for the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD).A diagnostic tool formatted as a checklist was developed and compared to an existing diagnostic tool, the DC/TMD diagnsostic decision trees. Both types of tools use the DC/TMD and were tested by dental students, interns, and residents in the USA and Japan for diagnosis of hypothetical patients. The comparisons were done in a randomized, crossover, controlled, double-blinded trial.Overall, subjects using the experimental tool answered 25% more correct diagnoses (P.001) and missed 27% fewer diagnoses (P.01). They were also able to finalize their diagnoses faster than those using the control tool, in 16% less time (P.05). The difference in accuracy was more pronounced in complex cases, while the difference in speed was more pronounced in simple cases.This checklist is an alternative user interface for the DC/TMD.