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1990:
Fuks A B; Chosack A; Eidelman E
Two-year evaluation in vivo and in vitro of Class 2 composites.
Operative dentistry 1990;
15(
6):.
Nineteen class 2 Herculite restorations were evaluated two years after placement. Nine of these were retrieved and examined by clinical inspection out of the mouth. Six of the restorations were then removed and the cavities examined for extent and location of discoloration and secondary caries. Radiolucent defects at the gingival margins were seen in 36% of the teeth. Gaps were evident in 58% of the gingival margins of the retrieved teeth. Secondary caries was diagnosed in four cases, all of them at the cervical margin. Examination of the cavities after removal of the composite resin demonstrated the penetration of the carious process into the dentin.
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