Download PDF A comparative evaluation of the effect of three different concentrations of in-office bleaching agents on microhardness and surface roughness of enamel – An in vitro study  This is a temporary file and hence do not link it from a website, instead link the URL of this page if you wish to link the PDF file. To read this article you will require Adobe© Acrobat Reader, if you do not have this installed you can download it from here Support open access Recommend
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