Table 2 Modified USPHS criteria.
Criteria/score | Alpha (A) | Bravo (B) | Charlie (C) | Delta (D) |
|---|---|---|---|---|
Anatomic contour (integrity filling) (visual inspection and explorer) | The restoration is a continuation of existing anatomic form or is slightly flattened. It may be over-contoured When the side of the explorer is placed tangentially across the restoration, it does not touch two opposing cavo-surface line angles at the same time | A surface concavity is evident. When the side of the explorer is placed tangentially across the restoration, it does not touch two opposing cavosurface line angles at the same time, but the dentin or base is not exposed | There is a loss of restorative substance such that a surface concavity is evident, and the base and/or dentin is exposed | Total loss of the restoration |
Marginal adaptation (visual inspection and explorer) | The explorer does not catch when drawn across the surface of the restoration toward the tooth, or, if the explorer does not catch, there is no visible crevice along the periphery of the restoration | The explorer catches and there is visible evidence of a crevice, which the explorer penetrates, indicating that the edge of the restoration does not adapt closely to the tooth structure. The dentin and/or the base is not exposed, and the restoration is not mobile | The explorer penetrates crevice defect extended to the dentino- enamel junction. (localized) | Strong negative step in major parts of the margin not removable |
Surface texture (explorer) | Surface texture similar to polished enamel as determined by means of a sharp explorer | Surface texture gritty or similar to a surface subject to a white stone or similar to a composite containing supra-micron sized particle | Surface pitting is sufficiently coarse to inhibit the continuous movement of an explorer across the surface | |
Gross fracture | Restoration is intact and fully retained | Restoration is partially retained with some portion of the restoration still intact | Restoration is completely missing | |
Cavo-surface marginal discoloration (visual inspection) | There is no visual evidence of marginal discoloration different from the color of the restorative material and from the color of the adjacent tooth structure | There is visual evidence of marginal discoloration at the junction of the tooth structure and the restoration, but the discoloration has not penetrated along the restoration in a pulpal direction | There is evidence of visual marginal discoloration at the junction of the tooth structure and the restoration that has penetrated along the restoration in a pulpal direction | Strong discoloration in major parts Of the margins, not removable |
Color match (visual inspection) | The restoration matches the shade and translucency of the adjacent tooth | There is a mismatch in the shade and translucency, but it is within the normal range of tooth shade | The mismatch beyond the normal range of the tooth shade and translucency | |
Secondary caries (visual inspection) | The restoration is a continuation of existing anatomic form adjacent to the restoration | There is visual evidence of dark keep discoloration adjacent to the restoration (but not directly associated with cavo- surface margins) | ||
Postoperative hypersensitivity | No postoperative sensitivity, after the restorative procedure and during the study | Sensitivity at any stage of the study |
