Effect of intracoronal bleaching agents on ultrastructure and mineral content of dentin.

Journal of Conservative Dentistry : JCD
Fatemeh MaleknejadIman Kianfar

Abstract

The purpose of this in vitro study was to evaluate the ultrastructural changes of dentin induced after exposure to different intracoronal tooth bleaching agents. Dental discs of 1 mm thickness were prepared from coronal dentin of sixty-four human maxillary premolars. Experimental specimens were divided into four subgroups: 45% carbamide peroxide, 35% hydrogen peroxide, sodium perborate + 30% hydrogen peroxide, sodium perborate + water. The specimens were then evaluated under scanning electron microscope to determine diameter of dentinal tubules and chemical analysis. There was significant difference between dentinal tubule diameter of all test and control groups with the exception of sodium perborate + water. Chemical analysis revealed that there was no significant difference between experimental subgroups regarding calcium and sulfur wt%. All bleaching agents increased dentinal tubule diameter and promote alterations in mineral content of dentin with the exception of Sodium perborate mixed with water.

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Citations

Aug 21, 2013·Journal of Conservative Dentistry : JCD·Ab-Ghani ZuryatiMohamad Dasmawati
Aug 8, 2014·Photomedicine and Laser Surgery·Fabiana Almeida CurylofoAline Evangelista Souza-Gabriel
Nov 12, 2015·BioMed Research International·Bryant Anthony IrawanMohammad Khursheed Alam
May 26, 2016·Brazilian Dental Journal·Thaís Fantinato TrindadeVivian Colucci
Nov 15, 2018·Journal of Applied Oral Science : Revista FOB·Zeynep B KutukSevil Gurgan
Jul 31, 2019·Journal of Lasers in Medical Sciences·Mohsen RezaeiZohreh Moradi
Jul 18, 2017·The Journal of Contemporary Dental Practice·Carmen LlenaLeopoldo Forner

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