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The Influence of Resin Infiltration System on Sound Enamel Microhardness and Shear-Bond Strength of Orthodontic Bands: An In-Vitro Study | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

The Influence of Resin Infiltration System on Sound Enamel Microhardness and Shear-Bond Strength of Orthodontic Bands: An In-Vitro Study

Author(s): Omnia A. Elhiny, Hanaa S. Elattar and Ghada A. Salem

To test the possibility that ICON bond infilterant can prevent demineralization of healthy enamel and preserve the surface hardness under orthodontic bands cemented with glassionomer (GIC) without affecting the shear bond strength of the bands. Twenty freshly extracted human premolars divided into two groups, in the control group sectioned band materials were bonded to the tooth surface using GIC,in the experimental group bonding with GIC were done following surface treatment with ICON. Both groups were subjected to pH cycling for 21 days. Microhardness was measured before and after treatment of the enamel surface. Shear Bond Strength was measured after the pH cycling. Application of ICON as pretreatment resulted in significantly lower bond strength as compared with control group. As for the enamel surface microhardness, the experimental group showed a significant increase in the microhardness following the pH cycling where the control group showed no significant difference. Within the limitation of this study, it was found that the resin infilterant ICON was able to prevent demineralization of the enamel surface under the glassionomer cement with a significant increase in surface hardness over the control group. However, the shear bond strength was reduced.


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