Clinical Study
Management of Class I and Class II Amalgam Restorations with Localized Defects: Five-Year Results
Table 1
U.S. Public Health Service/Ryge clinical criteria.
| Clinical characteristic | Alfa | Bravo | Charlie |
| Marginal adaptation | Explorer does not catch when drawn across the restoration/tooth interface | Explorer falls into crevice when drawn across the restoration/tooth interface | Dentin or base is exposed along the margin |
| Anatomic form | The general contour of the restorations follows the contour of the tooth | The general contour of the restoration does not follow the contour of the tooth | The restoration has an overhang |
| Surface roughness | The surface of the restoration has not any surface defects | The surface of the restoration has minimal surface defects | The surface of the restoration has severe surface defects |
| Secondary caries | There is no clinical diagnosis of caries | NA | There is clinical diagnosis of caries |
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