Table 2.
Modified United States Public Health Service (USPHS) criteria used for the clinical evaluations of the restorations
| Category | Score | Criteria |
|---|---|---|
| Marginal adaptation | 0 | Smooth margin |
| 1 | All margins closed or possess minor voids or defects (enamel exposed) | |
| 2 | Obvious crevice at margin, dentin or base exposed | |
| 3 | Debonded from one end | |
| 4 | Debonded from both ends | |
| Color match | 0 | Very good color match |
| 1 | Good color match | |
| 2 | Slight mismatch in color or shade | |
| 3 | Obvious mismatch, outside the normal range | |
| 4 | Gross mismatch | |
| Marginal discoloration | 0 | No discoloration evident |
| 1 | Slight staining, can be polished away | |
| 2 | Obvious staining, cannot be polished away | |
| 3 | Gross staining | |
| Surface roughness | 0 | Smooth surface |
| 1 | Slightly rough or pitted | |
| 2 | Rough, cannot be refinished | |
| 3 | Surface deeply pitted, irregular grooves | |
| Fracture of restoration | 0 | No fracture |
| 1 | Minor crack lines over restoration | |
| 2 | Minor chippings of restoration (1/4 of restoration) | |
| 3 | Moderate chippings of restoration (1/2 of restoration) | |
| 4 | Severe chippings (3/4 restoration) | |
| 5 | Debonding of restoration | |
| Fracture of tooth | 0 | No fracture of tooth |
| 1 | Minor crack lines in tooth | |
| 2 | Minor chippings of tooth (1/4 of crown) | |
| 3 | Moderate chippings of tooth (1/2 of crown) | |
| 4 | Crown fracture near cementum enamel line | |
| 5 | Crown-root fracture (extraction) | |
| Wear of restoration | 0 | No wear |
| 1 | Wear | |
| Wear of antagonist | 0 | No wear |
| 1 | Wear of antagonist | |
| Caries | 0 | No evidence of caries continuous along the margin of the restoration |
| 1 | Caries evident continuous with the margin of the restoration | |
| Postoperative sensitivity | 0 | No symptoms |
| 1 | Slight sensitivity | |
| 2 | Moderate sensitivity | |
| 3 | Severe pain |