The effects of eugenol and epoxy-resin on the strength of a hybrid composite resin.
The compatibility of different dental materials (root canal sealer and composite core build-up restoratives) is an important factor for a successful restoration. The aim of this in vitro study was to determine the effects on compressive and diametral tensile strength of a classical chemical cure composite resin (Henry Schein Composite Anterior-Posterior dental restorative) when in contact with either eugenol or an epoxy-resin (EZ-Fill) in a variety of situations: (a) eugenol or epoxy-resin added during mixing of a composite resin before curing; (b) vapor exposure to cured samples; and (c) specimens placed directly in eugenol or epoxy-resin (after curing). Compressive strengths and diametral tensile strengths were tested for each group. Only the addition of eugenol during mixing with the composite resin (directly before curing) resulted in specimens that were unable to be tested, because they did not achieve a full cure or hardness. For all other groups, there were no significant differences with respect to either compressive strength (p = 0.17) or diametral tensile strength (p = 0.39). Group 1 (mixed directly with eugenol) was found to be statistically different from groups 2 through 7.
Cohen
Brett I
BI
Essential Dental Laboratories, South Hackensack, New Jersey 07606, USA.
Volovich
Yekaterina
Y
Musikant
Barry Lee
BL
Deutsch
Allan S
AS
D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry*; D019245:Compressive Strength; D003793:Dental Restoration, Permanent / Q000379:methods; D004339:Drug Compounding; D004344:Drug Incompatibility; D004853:Epoxy Resins / Q000737:chemistry*; D008422:Materials Testing; D012387:Root Canal Filling Materials / Q000737:chemistry; D013718:Tensile Strength; D015035:Zinc Oxide-Eugenol Cement / Q000737:chemistry*
D003188:Composite Resins; C118334:EZ-Fill epoxy resin; D004853:Epoxy Resins; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement; C045432:Grossman's sealer