Table 3. Oral health status and treatment need of residents with natural teeth at baseline (total n = 263).
| Variable | Baseline (T0) | Follow-up (T1) | p-valuea | ||
|---|---|---|---|---|---|
| Mean (median) or Number | SD or % | Mean (median) or Number | SD or % | ||
| Number of natural teeth | |||||
| Total Sample | 13.09 (13.0) | 7.64 | 10.16 (9.0) | 7.92 | < 0.001 |
| 0 teeth | 0 | 0 | 29 | 11.0 | |
| 1–9 teeth | 105 | 39.9 | 112 | 42.6 | |
| 10–20 teeth | 107 | 40.7 | 90 | 34.2 | |
| > 20 teeth | 51 | 19.4 | 32 | 12.2 | |
| D3MFt | 23.60 (25.00) | 6.70 | 25.15 (27.00) | 6.71 | |
| Decayed teeth | 3.02 (2.00) | 4.01 | 1.40 (2.95) | 2.95 | < 0.001 |
| Missing teeth | 18.90(19.00) | 7.64 | 21.86 (23.0) | 7.89 | < 0.001 |
| Filled teeth | 1.62 (0.00) | 2.72 | 1.89 (1.00) | 2.55 | 0.003 |
| Number of residual roots | 1.83 (1.00) | 3.35 | 0.85 (0.00) | 2.37 | < 0.001 |
| Treatment index b | 87.24 (92.59) | 15.71 | 94.09 (100.00) | 12.07 | < 0.001 |
| Restorative index c | 31.63 (0.00) | 38.54 | 64.19 (89.20) | 41.73 | < 0.001 |
| Fillings needed | 0.81 (0.00) | 1.53 | 0.37 (0.00) | 1.03 | < 0.001 |
| Extractions needed | 2.95 (1.00) | 4.31 | 1.31 (0.00) | 3.30 | < 0.001 |
| Total treatment need (fillings + extractions) | |||||
| Total Sample | 3.76 (2.00) | 4.44 | 1.68 (0.00) | 3.50 | < 0.001 |
| 1–9 teeth | 2.41 (2.00) | 2.33 | 1.04 (0.00) | 1.77 | <0.001 |
| 10–20 teeth | 4.21 (3.00) | 4.50 | 2.48 (0.00) | 4.35 | <0.001 |
| > 20 teeth | 5.61 (3.00) | 6.44 | 3.19 (1.00) | 5.43 | 0.016 |
a Wilcoxon matched pairs signed ranks test
b The treatment index is derived from the DMFt index and expresses the percentage of decayed teeth that received restorative treatment or were extracted. It is calculated by the following formula: [(F+M)/(D+F+M)] x 100. The more untreated caries, the lower the restorative index. The treatment index is especially relevant compared to the restorative index when the number of missing teeth is high.
c The restorative index is derived from the DMFt index and expresses the percentage of decayed teeth that received restorative treatment. It is calculated by the following formula: [F/(D+F)] x 100. The more untreated caries, the lower the restorative index.