Nouf A1 Hammad, Fouad S. Salama.
Enamel Surface and Resin Tags Morphology: SEM Study
J Pak Dent Assoc Jan - Mar 2001;10(1):17-24.
College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia

OBJECTIVE: To evaluate surface treatment of enamel and enameloplasty preparation resin tags morphology of the following materials: Dyract, Compoglass, Photac-Fil and Delton Plus. MATERIAL AND METHODS: A total of 45 extracted caries free permanent teeth were divided into 9 groups of 5 teeth each. Groups 1, 2, 3 and 4 were used to evaluate surface treatment of enamel treated according to the manufacturer's instructions of each of the mentioned materials while group 5 serves as control. Groups 6, 7, 8 and 9 were used to evaluate the enameloplasty preparation resin tags morphology of those materials after teeth were demineralized in 0.1 N hydrochloric acid for 24 hours, which leaves the restorative materials previously in contact with cavity walls, exposed. Teeth in groups 1, 2, 3, 4 and 5 as well as fitting surfaces of restorative materials in groups 6, 7, 8 and 9 were prepared and examined using SEM to evaluate surface treatment pattern and resin tags morphology. RESULTS: Surface treatment of enamel and enameloplasty preparation resin tags morphology evaluation of Dyract, Compoglass, Photac-Fil and Delton Plus using SEM demonstrated different appearance. Control surfaces showed the longitudinal marks and the smear layer created during preparations. Surface treatment of the teeth using Dyract and Delton Plus resulted in disappearance of the longitudinal marks while surfaces treated with Compoglass and Photac-Fil showed the longitudinal marks. The fitting surfaces of Compoglass, Photac-Fil and Delton Plus were consistent with their surface treatment appearance, while Dyract fitting surfaces were consistent with the prepared teeth surfaces before Dyract PSA Prime/Adhesive application. CONCLUSIONS: Enamel surface of the teeth following Dyract and Delton Plus surface treatments cause disappearance of the longitudinal marks created during cutting while surfaces treated with Compoglass and Photac-Fil surface still show the longitudinal marks. The fitting surfaces of Compoglass, PhotacFil and Delton Plus are consistent with their surface treatment appearance while Dyract fitting surfaces are consistent with the prepared teeth surfaces before Dyract PSA Prime/Adhesive application.

Category: Dentistry
Keywords: Enamel. Resin Tags. Scanning Electron Microscope.

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