Table 5.
Results of the USPHS evaluation of the second study cohort (nanofilled composite restorations) after a mean restoration service time of 5.2 years, and of the first study cohort (microhybrid composite restorations) after a similar restoration service time *. The percentages of the respective ratings (alpha–delta) for the different categories of the clinical evaluation are given.
| Alpha | Bravo | Charlie | Delta | |||||
|---|---|---|---|---|---|---|---|---|
| Nanofilled | Microhybrid * | Nanofilled | Microhybrid * | Nanofilled | Microhybrid * | Nanofilled | Microhybrid * | |
| Surface texture | 74 | 72 | 26 | 28 | - | - | - | - |
| Anatomical form | 74 | 29 | 17 | 57 | 9 | 13 | 0 | 0 |
| Marginal integrity | 80 | 41 | 19 | 57 | 1 | 5 | 0 | 1 |
| Marginal discoloration | 81 | 39 | 14 | 51 | 5 | 11 | 0 | 0 |
| Secondary caries | 99 | 100 | - | - | 1 | 0 | - | - |
| Marginal inflammation | 41 | 41 | 59 | 59 | 0 | 0 | 0 | 0 |
| Restoration color stability | 91 | 97 | 9 | 3 | - | - | - | - |
| Color match | 72 | 89 | 28 | 11 | 0 | 0 | 0 | 0 |
| Postoperative sensitivity (air) | 100 | 96 | 0 | 4 | 0 | 0 | - | - |
* Values taken from Attin et al. [25].