Comparative analysis of bond strength to root dentin and compression of bioceramic cements used in regenerative endodontic procedures
Rodrigues Maykely Naara Morais, Bruno Kely Firmino, de Alencar Ana Helena Goncalves, Silva Julyana Dumas Santos, de Siqueira Patricia Correia, de Almeida Decurcio Daniel, Estrela Carlos,
소속 상세정보
( Rodrigues Maykely Naara Morais ) - Federal University of Goias School of Dentistry Department of Endodontics
( Bruno Kely Firmino ) - South American College Department of Endodontics
( de Alencar Ana Helena Goncalves ) - Federal University of Goias School of Dentistry Department of Endodontics
( Silva Julyana Dumas Santos ) - Federal University of Goias School of Dentistry Department of Endodontics
( de Siqueira Patricia Correia ) - Federal University of Goias School of Dentistry Department of Endodontics
( de Almeida Decurcio Daniel ) - Federal University of Goias School of Dentistry Department of Endodontics
( Estrela Carlos ) - Federal University of Goias School of Dentistry Department of Endodontics
Abstract
Objectives: This study compared the Biodentine, MTA Repair HP, and Bio-C Repair bioceramics in terms of bond strength to dentin, failure mode, and compression.
Materials and Methods: Fifty-four slices obtained from the cervical third of 18 single-rooted human mandibular premolars were randomly distributed (n = 18). After insertion of the bioceramic materials, the push-out test was performed. The failure mode was analyzed using stereomicroscopy. Another set of cylindrically-shaped bioceramic samples (n = 10) was prepared for compressive strength testing. The normality of data distribution was analyzed using the Shapiro-Wilk test. The Kruskal-Wallis and Friedman tests were used for the push-out test data, while compressive strength was analyzed with analysis of variance and the Tukey test, considering a significance level of 0.05.
Results: Biodentine presented a higher median bond strength value (14.79 MPa) than MTA Repair HP (8.84 MPa) and Bio-C Repair (3.48 MPa), with a significant difference only between Biodentine and Bio-C Repair. In the Biodentine group, the most frequent failure mode was mixed (61%), while in the MTA Repair HP and Bio-C Repair groups, it was adhesive (94% and 72%, respectively). Biodentine showed greater resistance to compression (29.59 ± 8.47 MPa) than MTA Repair HP (18.68 ± 7.40 MPa) and Bio-C Repair (19.96 ± 3.96 MPa) (p < 0.05).
Conclusions: Biodentine showed greater compressive strength than MTA Repair HP and Bio-C Repair, and greater bond strength than Bio-C Repair. The most frequent failure mode of Biodentine was mixed, while that of MTA Repair HP and Bio-C Repair was adhesive.
키워드
Calcium silicate cement; Compressive strength; Dentin bond strength; Regenerative endodontics
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