Effect of Hexagonal Boron Nitride Nanoparticles on the Push-Out Bond Strength of a Bioceramic Root Canal Sealer
- 1Department of Endodontics, Faculty of Dentistry, University of Istanbul Medeniyet, Istanbul 34956, Türkiye
Abstract
This in vitro study evaluated the effect of hexagonal boron nitride (HBN) nanoparticles on the push-out bond strength of a bioceramic root canal sealer. Sixty-eight extracted human maxillary central incisors were prepared using Reciproc R40 instruments and assigned to four groups: Adseal, unmodified BioRoot RCS, and BioRoot RCS containing 5% or 20% HBN by volume. Following obturation with gutta-percha and the respective sealers, specimens were stored at 37 °C and 100% humidity for 14 days. One-millimeter-thick slices from the coronal, middle, and apical thirds underwent push-out testing. Data were analyzed using a linear mixed-effects model, with sealer type, root region, and their interaction as fixed effects and tooth identity as a random effect (p < 0.05). BioRoot RCS containing 20% HBN showed significantly higher bond strength than Adseal in the coronal region, no significant difference in the middle region, and significantly lower bond strength in the apical region. Unmodified BioRoot RCS showed the lowest bond strength in all regions. Regional variations differed according to sealer type. Within the limitations of this study, incorporating 20% HBN increased the push-out bond strength of BioRoot RCS. Further investigation of the physicochemical, biological, and long-term properties of HBN-modified sealers is required.
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BibTeX
@article{ozkocak2026effect,
title = {{Effect of Hexagonal Boron Nitride Nanoparticles on the Push-Out Bond Strength of a Bioceramic Root Canal Sealer}},
author = {Ismail Ozkocak and Ikbal Sena Celebi Keskin and Banu Arıcıoglu},
journal = {Nanomaterials},
year = {2026},
month = nov,
doi = {10.3390/nano16211447},
url = {https://www.mdpi.com/2079-4991/16/21/1447},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Effect of Hexagonal Boron Nitride Nanoparticles on the Push-Out Bond Strength of a Bioceramic Root Canal Sealer
AU - Ismail Ozkocak
AU - Ikbal Sena Celebi Keskin
AU - Banu Arıcıoglu
PY - 2026
DA - 2026/11/08
JO - Nanomaterials
DO - 10.3390/nano16211447
UR - https://www.mdpi.com/2079-4991/16/21/1447
AB - This in vitro study evaluated the effect of hexagonal boron nitride (HBN) nanoparticles on the push-out bond strength of a bioceramic root canal sealer. Sixty-eight extracted human maxillary central incisors were prepared using Reciproc R40 instruments and assigned to four groups: Adseal, unmodified BioRoot RCS, and BioRoot RCS containing 5% or 20% HBN by volume. Following obturation with gutta-percha and the respective sealers, specimens were stored at 37 °C and 100% humidity for 14 days. One-millimeter-thick slices from the coronal, middle, and apical thirds underwent push-out testing. Data were analyzed using a linear mixed-effects model, with sealer type, root region, and their interaction as fixed effects and tooth identity as a random effect (p < 0.05). BioRoot RCS containing 20% HBN showed significantly higher bond strength than Adseal in the coronal region, no significant difference in the middle region, and significantly lower bond strength in the apical region. Unmodified BioRoot RCS showed the lowest bond strength in all regions. Regional variations differed according to sealer type. Within the limitations of this study, incorporating 20% HBN increased the push-out bond strength of BioRoot RCS. Further investigation of the physicochemical, biological, and long-term properties of HBN-modified sealers is required.
SN - 2079-4991
ER -