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Clinical and SEM study of Tetric resin composite in posterior teeth: 12-month results

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Clinical and SEM study of Tetric resin composite in posterior teeth:

12-month results

KREJCI, Ivo, BESEK, Mario, LUTZ, Felix

Abstract

Thirty-nine conventional posterior composite fillings were placed according to the three-sited light curing technique using Tetric, a fine hybrid composite material, and Syntac, a dentin adhesive. Six and 12 months later, the restorations were clinically evaluated using macrophotographs. A quantitative marginal analysis was also done immediately after placing the restorations and at the two recall intervals using a replica technique and an SEM. Contour, secondary caries, postoperative sensitivity and bulk fractures all rated "A" at 12 months.

Marginal discoloration and color match were scored as 97% "A" and 3% "B". The SEM evaluation of the marginal adaptation showed 95% "continuous margin" initially and 93% at 6 months and 89% at 12 months. No statistical difference was found between the initial findings and the 12-month recall between premolars and molars, nor between small and large restorations. The overall performance of the new composite material during the 12-month observation period was satisfactory.

KREJCI, Ivo, BESEK, Mario, LUTZ, Felix. Clinical and SEM study of Tetric resin composite in posterior teeth: 12-month results. American Journal of Dentistry , 1994, vol. 7, no. 1, p. 27-30

PMID : 9115675

Available at:

http://archive-ouverte.unige.ch/unige:81113

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