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Quintessence International
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Quintessence Int 27 (1996), No. 9     1. Sep. 1996
Quintessence Int 27 (1996), No. 9  (01.09.1996)

Page 627-634


Clinical performance of preventive resin restorations placed in a hospital environment
King / Yung / Holmgren
This study was conducted retrospectively to evaluate the clinical performance of preventive resin restorations. Five hundred thirty-two restorations in 351 patients had been in the mouth for a mean of 16.5 ± 7.6 months. The clinical performance was determined with a modified version of the US Public Health Service rating system. In 79.9% of the restorations, the marginal discoloration was rate d as Alfa (no discoloration), while only 0.9% were scored as Charlie (discoloration pernetrating in a pulpal direction). The marginal adaptation was rated as Oscar (fully sealed) in 28.4% of restorations; in only 0.4% of restorations, rated as Charlie or Delta, was the dentin or base exposed. In 98.3% of the restorations evaluated, the anatomic form was rated as Alfa (continuous with existing anatomic form). Recurrent caries was associated with 2.3% of the restorations. Chi-squared tests failed to reveal any statistically significant relationships between the clinical performance of the restorations and the length of time in the mouth.