Table 4.
Frequency and percentage of “degradation features” attributed to restorations after 1 and 36 months of follow-up according to the combination of restorative materials (n = 47 patients, number of restorations in each group shown in parenthesis)
| Degradation feature | 1 month | 36 months | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| APX + IPS (n = 102) | EST + IPS (n = 46) | SUP + SUP (n = 80) | LU + SUP (n = 42) | APX + IPS (n = 102) | EST + IPS (n = 46) | SUP + SUP (n = 80) | LU + SUP (n = 42) | ||||||||||
| Freq | % | Freq | % | Freq | % | Freq | % | Freq | % | Freq | % | Freq | % | Freq | % | ||
| Irregularities | Present | 47 | 46.1 | 19 | 41.3 | 31 | 38.8 | 15 | 35.7 | 39 | 38.2 | 16 | 34.8 | 35 | 43.8 | 10 | 23.8 |
| Absent | 55 | 53.9 | 27 | 58.7 | 49 | 61.3 | 27 | 64.3 | 63 | 61.8 | 30 | 65.2 | 45 | 56.3 | 32 | 76.2 | |
| Ditching | Present | 10 | 9.8 | 2 | 4.3 | 7 | 8.8 | 1 | 2.4 | 10 | 9.8 | 7 | 15.2 | 12 | 15.0 | 4 | 9.5 |
| Absent | 92 | 90.2 | 44 | 95.7 | 73 | 91.3 | 41 | 97.6 | 92 | 90.2 | 39 | 84.8 | 68 | 85.0 | 38 | 90.5 | |
| Fracture | Present | 3 | 2.9 | 2 | 4.3 | 4 | 5.0 | 1 | 2.4 | 7 | 6.9 | 8 | 17.4 | 10 | 12.5 | 4 | 9.5 |
| Absent | 99 | 97.1 | 44 | 95.7 | 76 | 95.0 | 41 | 97.6 | 95 | 93.1 | 38 | 82.6 | 70 | 87.5 | 38 | 90.5 | |
APX + IPS (palatal veneer Clearfil AP-X, buccal veneer IPS Empress Direct), EST + IPS (palatal veneer Clearfil Estenia C&B, buccal veneer IPS Empress Direct), SUP + SUP (palatal and buccal veneers Filtek Supreme XTE), LU + SUP (palatal veneer Lava Ultimate, buccal veneer Filtek Supreme XTE)