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Marginal Adaptation Evaluation of B iodentine and MTA P lus in “Open Sandwich” Class II Restorations
Author(s) -
Aggarwal Vivek,
Singla Mamta,
Yadav Suman,
Yadav Harish
Publication year - 2015
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12141
Subject(s) - glass ionomer cement , mineral trioxide aggregate , dentin , materials science , molar , composite number , dentistry , cement , calcium silicate , dental cement , cementum , composite material , gingival margin , scanning electron microscope , adhesive , medicine , layer (electronics)
Purposes This study aimed at evaluation of two different commercially available calcium silicate materials ( B iodentine and mineral trioxide aggregate [ MTA ] P lus) used as dentin substitute. Materials and Methods Sixty Class II cavities were prepared in extracted mandibular third molars, with margins extending 1 mm below the cementum–enamel junction. The samples were divided into three groups on the basis of dentin substitute used: resin modified glass ionomer cement, B iodentine, and MTA P lus. Cavities were restored with composite resins in an “open sandwich” technique. The samples were subjected to alternate aging in phosphate buffered saline and cyclic loading. Marginal adaptation was evaluated in terms of “continuous margin” at the gingival margin, using a low vacuum scanning electron microscope. Statistical analysis was done with two‐way analysis of variance with H olm‐ S idak's correction for multiple comparisons. Results The glass ionomer group and B iodentine group presented an overall 83% and 91% of continuous margins, with no difference between them. MTA P lus showed least values of continuous margins. Granular deposits were seen over the surface of B iodentine and MTA P lus. Conclusions Biodentine and resin‐modified glass ionomer cement, when used as a dentin substitute under composite restorations in open sandwich technique, gave satisfactory marginal adaptation values. Clinical Significance Contemporary calcium silicate materials can be used as dentin substitute materials in “open sandwich” Class II restorations. This study evaluates the marginal adaptation of B iodentine, MTA P lus, and resin modified glass ionomer cement used as dentin substitutes and reports better adaptation obtained with B iodentine and glass ionomer cement.