Reliability and validity of the DC/TMD Axis I

First of all, we would like to thank our esteemed colleagues Drs. Steenks, Türp, and de Wijer for their thoughtful Focus Article1 related to the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD)2. In a way it is almost déjà vu, as already in 20093 Drs. Steenks and de Wijer aired their concerns about the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD)4, which in essence would have been one of the many factors leading to the publication of the DC/TMD5. Steenks et al now raise a number of new critical comments that no doubt will be valuable to consider in the next revision of the DC/TMD.