Table 1: Alterations in temporomandibular joints of patients treated with facemask with skeletal anchorage following the Alternate Rapid Maxillary Expansion and Constriction (Alt-RAMEC) protocol.
| Disc position (after treatment) | ||||||
|---|---|---|---|---|---|---|
| Normal | Anterior disc displacement with reduction | Anterior disc displacement without reduction | Total | Total (n) | p-value | |
| Disc position (before treatment) | Normal | 23 | 4 | 1 | 28 | 0.034*,a |
| Anterior disc displacement with reduction | 0 | 2 | 0 | 2 | ||
| Anterior disc displacement without reduction | 0 | 0 | 0 | 0 | ||
| Total (n) | 23 | 6 | 1 | 30 | ||
| Condylar translation (after treatment) | ||||||
| Normal | Restricted | Excessive | Total (n) | p-value | ||
| Condylar translation (before treatment) | Normal | 28 | 1 | 0 | 29 | 1.000b |
| Restricted | 1 | 0 | 0 | 1 | ||
| Excessive | 0 | 0 | 0 | 0 | ||
| Total (n) | 29 | 1 | 0 | 30 | ||
| Degenerative changes of the condyle (after treatment) | ||||||
| Absent | Present | Total (n) | p-value | |||
| Degenerative changes of the condyle (before treatment) | Absent | 30 | 0 | 30 | 1.000 | |
| Present | 0 | 0 | 0 | |||
| Total (n) | 30 | 0 | 30 | |||
| Joint effusion (after treatment) | ||||||
| Absent | Present | Total (n) | p-value | |||
| Joint effusion (before treatment) | Absent | 28 | 0 | 28 | 1.000b | |
| Present | 0 | 2 | 2 | |||
| Total (n) | 28 | 2 | 30 | |||
n = number; *p<0.05.
a Marginal homogeneity test; bMcNemar test.