Tooth-composite interface from specific and nonspecific adhesive restorative systems

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Gitte HasshoffKnut Merte

Abstract

The aim of this in vitro study was to do a morphological comparison of tooth/composite interface by means of three composite systems: (1) a specific formulated primer adhesive and Organically Modified Ceramics (ORMOCER) composite, (2) an universal self-etching adhesive and the same ORMOCER composite, (3) and the same universal adhesive used for Group 2 and a fine-particle hybrid resin composite. The rational for this study was based on the recommendations from manufacturers that nonspecific dentin bonding agents can be used with ORMOCER. Twenty-one Class II cavities were prepared in extracted third molars. Seven randomly assigned teeth were restored with one of the three methods according to the instructions provided by the manufacturer. Following completion of the restorations, the teeth were sectioned and evaluated by means of scanning electron microscopy for evaluation of interfacial morphology and light microscopy for the determination of microleakage. The last was scored as being present or absent. The best results were observed using method 1, in which a special primer adhesive and ORMOCER composite was used. In this group there were statistically significant fewer gaps in enamel (4.7+/- 7.5%) and dentin (22.8 +/- 7.4%) c...Continue Reading

References

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Citations

Jun 5, 2007·Biomaterials·Kirsten L Van LanduytBart Van Meerbeek
May 3, 2007·The Journal of the American Dental Association·Deniz KorasliS Burcak Cehreli
Apr 15, 2009·Operative Dentistry·Hartmut SchneiderMatthias Häfer

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