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  • Title: Durability of new restorative materials in Class III cavities.
    Author: van Dijken JW.
    Journal: J Adhes Dent; 2001; 3(1):65-70. PubMed ID: 11317385.
    Abstract:
    PURPOSE: The aim of this study was to evaluate the durability of new hybrid tooth-colored restorative materials in Class III cavities. MATERIALS AND METHODS: 154 large-sized Class III restorations were placed in 50 patients. The patients received one of each of the three following materials: a resin composite (RC, Pekafill), a polyacid-modified resin composite (PMRC, Dyract) (compomer), and a resin-modified glass-ionomer cement (RMGIC, Fuji II LC). The restorations were evaluated yearly with slightly modified USPHS criteria. RESULTS: Of 141 restorations evaluated at 6 years, 16 were estimated as unacceptable. Seven of these were replaced: 2 fractures, 3 recurrent caries, and 2 due to unacceptable color match. In 9 other restorations with unacceptable color match, the patients did not request replacements. No significant differences were seen between the materials concerning the occurrence of recurrent caries. The RC showed significantly better color match. Significantly higher surface roughness was seen for the aged RMGIC restorations. Fracture of the incisal enamel corner was observed contiguous to ten restorations in the 6-year evaluation. None of the restorative techniques resulted in postoperative sensitivity or loss of vitality. CONCLUSION: The resin composite showed the best durability.
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