SEM investigation of composite restoration adaptation to enamel after use of total etch and self etch adhesive system

Autor: Dačić Stefan, Dačić-Simonović Dragica, Živković Slavoljub, Radičević Goran, Mitić Aleksandar, Stanojević Ivana, Veselinović Aleksandar
Jazyk: English<br />Serbian
Rok vydání: 2009
Předmět:
Zdroj: Srpski Arhiv za Celokupno Lekarstvo, Vol 137, Iss 9-10, Pp 475-481 (2009)
Druh dokumentu: article
ISSN: 0370-8179
DOI: 10.2298/SARH0910475D
Popis: Introduction Quality and durability of enamel/composite interface essentially depend on an adhesive restorative system. Objective The aim of this study was to evaluate the quality of marginal adaptation of composite adhesive systems to enamel by scanning electron microscopy (SEM), and to analyze the morphology of the enamel surface along margins of composite restorations, following exposure to cariogenic solution. Methods The study material included 56 extracted human third molars. Class V cavities were prepared with margins at enamel. Cavities were restored with Single Bond/Z250 and Single Bond/Filtek flow, using the total etch adhesive system, and Prompt-L-Pop/Z250 and Prompt-L-Pop/Filtek flow, using the self etch adhesive system. After the restorative procedure, the restorations were submitted to demineralization during 7 and 28 days. Samples were stored in a cariogenic solution (lactic acid, pH 4.5; 0.1 M) at 37°C or in deionized water (the control group). The margins of restorations and perimarginal enamel were examined by scanning electron microscope (SEM). The gap formations around restoration were measured on cervical, occlusal and approximate margins. Results The usage of the total etch adhesive system showed statistically significant lower marginal gap width around composite restoration, compared with the self etch system (p
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