Table 1.
Oral and maxillofacial characteristics of the participants according to mixing ability index.
| Variable | Total | Mixing Ability Index | ||
|---|---|---|---|---|
| ≥51.86 (n = 40) | <51.86 (n = 40) | p-Value | ||
| Age | 75.10 ± 5.64 | 74.95 ± 5.49 | 75.25 ± 5.85 | 0.814 * |
| Sex | ||||
| Male | 35 (43.8) | 14 (35.0) | 21 (52.5) | 0.176 † |
| Female | 45 (56.3) | 26 (65.0) | 19 (47.5) | |
| Mixing ability index | 55.22 ± 19.59 | 70.49 ± 13.65 | 39.95 ± 10.60 | <0.001 * |
| Number of remaining teeth | 18.60 ± 4.38 | 19.45 ± 4.33 | 17.75 ± 4.33 | 0.083 * |
| Number of functional tooth units | 7.29 ± 1.88 | 7.70 ± 1.60 | 6.89 ± 2.06 | 0.052 ‡ |
| Symptoms related to periodontal disease | 1.66 ± 1.08 | 1.45 ± 1.03 | 1.88 ± 1.09 | 0.078 ‡ |
| Symptoms related to temporomandibular disease (TMD) | 0.74 ± 0.87 | 0.58 ± 0.71 | 0.90 ± 0.98 | 0.095 ‡ |
| Salivary secretion rate (mL/min) | 1.62 ± 0.62 | 1.66 ± 0.69 | 1.58 ± 0.54 | 0.564 † |
| Oscillation frequency of masseter (Tension, Hz) | 19.03 ± 3.67 | 17.83 ± 3.21 | 20.23 ± 3.75 | 0.003 * |
| Logarithmic decrement of masseter (Elasticity) | 1.49 ± 0.38 | 1.39 ± 0.41 | 1.60 ± 0.32 | 0.011 * |
| Dynamic stiffness of masseter (N/m) | 321.41 ± 49.12 | 314.05 ± 43.14 | 328.76 ± 54.00 | 0.182 * |
All values are presented as mean ± standard deviation or n (%). * Independent t-test; † Chi-square test; ‡ Mann–Whitney U test.