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Table 3 The adapted USPHS criteria with their categories and grading

From: Influence of different application protocols of universal adhesive system on the clinical behavior of Class I and II restorations of composite resin – a randomized and double-blind controlled clinical trial

Marginal discoloration1. Alpha (clinically ideal)
2. Bravo (showing minor deviations from the ideal, nevertheless acceptable – except for retention and secondary caries)
3. Charlie (should be replaced to avoid future damage or requiring immediate replacement)
1. Acceptable (1, 2)
2. Not acceptable (3)
Marginal integrity
Postoperative sensitivity
Recurrence of caries