Table 2.
Distribution of RDC/TMD axis I diagnosis
| RDC group | Number of subjects |
|---|---|
| Muscle disorders | |
| Myofascial pain | 71 |
| Myofascial pain with limited opening | 16 |
| Disc displacements | |
| Disc displacement with reduction | 36 |
| Disc displacement without reduction, with limited opening | 0 |
| Disc displacement without reduction, without limited opening | 1 |
| Arthralgia, arthritis, arthrosis | |
| Arthralgia | 61 |
| Osteoarthritis of the temporomandibular joint | 1 |
| Osteoarthrosis of the temporomandibular joint | 0 |
RDC/TMD = research diagnostic criteria for temporomandibular disorders; RDC = research diagnostic criteria.