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European Journal of Prosthodontics and Restorative Dentistry

Comparison of Flexural Strength of Resin Cements After Storing in Different Media and Bleaching Agents

Abstract

10.1922/EJPRD_1406Geramipanah06

Comparison of Flexural Strength of Resin Cements After Storing in Different Media and Bleaching Agents
Farideh Geramipanah, Susan Mir Mohammad Rezaei, Maryam Jafary, Leyla Sadighpour

ABSTRACT
The aim of this study was to determine the effects of different storage media and bleaching treatments on the flexural strength of two resin cements (Panavia and BisCem). One hundred rectangular-shaped specimens were prepared with two resin cements and were stored in five media types (n=10): distilled water (DW), lactic acid (LA), sodium hydroxide (NH) , in-office bleaching ( OB) and home bleaching (HB). There was significant interaction between the solutions and cements (p<0.05). The lowest threepoint flexural strength was found in sodium hydroxide for both cements (p<0.05). Both cements exhibited significant increase in flexural strength following home and in-office bleaching (except Panavia in OB) (p<0.05) compared with immersion in distilled water. Panavia recorded significantly higher flexural strength compared with BisCem in all media (p< 0.002), with the exception of in-office bleaching.

Keywords
Resin Cement Bleaching Agent Flexural Strength

Authors

Leyla Sadighpour, Maryam Jafary, Susan Mir Mohammad Rezaei, Farideh Geramipanah

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