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Int J Dent. 2012;2012:563203. doi: 10.1155/2012/563203. Epub 2011 Nov 3.

Effect of dentin bonding agent on the prevention of tooth discoloration produced by mineral trioxide aggregate.

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1
Department of Restorative Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad 91735-984, Iran.

Abstract

OBJECTIVE:

Determination of the effect of dentin bonding agent (DBA) on the prevention of tooth discoloration produced by mineral trioxide aggregate (MTA).

METHODS:

50 teeth were endodontically treated and after removal of 3 mm of obturating materials were divided into five groups. In white MTA (WMTA) and grey MTA (GMTA) groups, these materials were placed in root canal below the orifice. In DBA + WMTA and DBA + GMTA groups, DBAs were applied in the access cavity. Then, 3 mm of WMTA and GMTA was placed. The last 10 teeth served as control. All of teeth were restored and color measurement was recorded for each specimen at this time and 6 months later.

RESULTS:

The mean tooth discoloration in WMTA and GMTA groups was significantly more than DBA + WMTA and DBA + GMTA groups, respectively. There was no significant difference between DBA + WMTA and DBA + GMTA groups and control group.

CONCLUSION:

Application of DBA before MTA may prevent tooth discoloration.

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