Comparative Evaluation of Bond Strength of Surfacetreated and Surface-modified Anterior Acrylic Teeth to Heat Cure Denture Base: An in vitro Study

Publisher: Jaypee Infomedia

E-ISSN: 2456-317x|5|2|123-130

ISSN: 2347-6249

Source: International Journal of Oral Care & Research, Vol.5, Iss.2, 2017-04, pp. : 123-130

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Abstract

ABSTRACTBackgroundAcrylic resin ruled the dental profession for 60 years, and this success is attributed to its esthetics, handling properties, physical and biological compatibility, stability in oral environment, and cost-effectiveness.Aims and objectivesThe objective of this study was to evaluate and compare the bond strength of acrylic resin teeth treated with various surface treatments and surface modifications like cingulum ledge, sandblasting, and dichloromethane.Materials and methodsThe study was carried out in which 80 samples were grouped into four groups. The groups were: Control group, Cingulum ledge as mechanical surface modification, Sandblasting as micromechanical surface modification, Dichloromethane as chemical surface modification. The samples ware retained in wax pattern with the help of surveyor, then flasked, trimmed, and polished. The prepared samples were then subjected to shear bond strength using the Instron Universal Testing Machine at an angle of 45°.ResultsCreation of cingulum ledge, sandblasting, and/or application of dichloromethane increased the bond strength between acrylic teeth and denture base, when compared with the conventionally processed samples, i.e., control group. However, it was found that application of dichloromethane increased the bond strength more than creating cingulum ledge and sandblasting.Observation and conclusionApplication of dichloromethane is advised to enhance the bond strength as it is easy for application, increases bond strength compared with creation of cingulum ledge and sandblastingHow to cite this articleKhandagale TS, Sanyal PK, Tewary S, Guru R, Kore A. Comparative Evaluation of Bond Strength of Surface-treated and Surface-modified Anterior Acrylic Teeth to Heat Cure Denture Base: An in vitro Study. Int J Oral Care Res 2017;5(2):123-130.

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