Table 2.
Clinical index of temporomandibular dysfunction (Di).
| Di | Symptoms |
|---|---|
| Mandibular movements | |
| 0 | Normal range |
| 1 | Small reduction in amplitude |
| 5 | Large reduction in amplitude |
|
| |
| Temporomandibular joint function | |
| 0 | Smooth, noiseless abduction and adduction of mandible, trajectory asymmetry <2 mm |
| 1 | Noise in one joint or both joints during abduction and adduction of mandible, trajectory asymmetry >2 mm |
| 5 | Abduction of mandible impossible and/or luxation |
|
| |
| Masticatory muscle pain | |
| 0 | No tenderness |
| 1 | Tenderness of 1–3 sites |
| 5 | Tenderness of 4 and more sites |
|
| |
| Temporomandibular joint pain | |
| 0 | No tenderness |
| 1 | Unilateral or bilateral tenderness |
| 5 | Unilateral or bilateral tenderness of the dorsal surface of joint |
|
| |
| Pain during movement of mandible | |
| 0 | No pain |
| 1 | Pain during one out of all possible movement directions |
| 5 | Pain during more than one out of all possible movement directions |