Introduction: Open pores between endodontic sealer and root canal walls present potential niches for bacterial growth and migration pathways. The aim was to assess the internal and external porosity of calcium silicate-based sealers and to ascertain the long-term effect of storage in simulated body fluid on sealer porosity. Methods: Sixteen single-rooted teeth were filled with gutta-percha and 1 of 4 root canal sealers: BioRoot RCS, EndoSequence BC, MTA Fillapex, or AH Plus. Obturated roots, stored in Hank's balanced salt solution, were scanned after 7 days and after 6 months by using micro-computed tomography at an isotropic resolution of 9.9 mm. Total, open, and closed porosity were calculated in the coronal, middle, and apical thirds. Data were statistically analyzed by using general linear model and paired t test (alpha = 0.05). Results: Significantly higher percentage of open than closed porosity was found in all groups. Initially, significantly greater open and total porosity wer...e found for MTA Fillapex than for AH Plus. After 6 months, the percentage of open and total porosity increased in BioRoot RCS and MTA Fillapex and decreased in AH Plus and EndoSequence BC. Both initially and after storage, coronal region of all sealers had significantly greater total porosity than middle and apical regions, which were comparable. Conclusions: None of the root fillings were void-free, with predominant open porosity persisting after long-term storage.
TY - JOUR
AU - Milanović, Ivana
AU - Milovanović, Petar
AU - Antonijević, Đorđe
AU - Dželetović, Bojan
AU - Đurić, Marija
AU - Miletić, Vesna
PY - 2020
UR - https://smile.stomf.bg.ac.rs/handle/123456789/2474
AB - Introduction: Open pores between endodontic sealer and root canal walls present potential niches for bacterial growth and migration pathways. The aim was to assess the internal and external porosity of calcium silicate-based sealers and to ascertain the long-term effect of storage in simulated body fluid on sealer porosity. Methods: Sixteen single-rooted teeth were filled with gutta-percha and 1 of 4 root canal sealers: BioRoot RCS, EndoSequence BC, MTA Fillapex, or AH Plus. Obturated roots, stored in Hank's balanced salt solution, were scanned after 7 days and after 6 months by using micro-computed tomography at an isotropic resolution of 9.9 mm. Total, open, and closed porosity were calculated in the coronal, middle, and apical thirds. Data were statistically analyzed by using general linear model and paired t test (alpha = 0.05). Results: Significantly higher percentage of open than closed porosity was found in all groups. Initially, significantly greater open and total porosity were found for MTA Fillapex than for AH Plus. After 6 months, the percentage of open and total porosity increased in BioRoot RCS and MTA Fillapex and decreased in AH Plus and EndoSequence BC. Both initially and after storage, coronal region of all sealers had significantly greater total porosity than middle and apical regions, which were comparable. Conclusions: None of the root fillings were void-free, with predominant open porosity persisting after long-term storage.
PB - Elsevier Science Inc, New York
T2 - Journal of Endodontics
T1 - Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers
VL - 46
IS - 4
SP - 515
EP - 523
DO - 10.1016/j.joen.2020.01.007
ER -
@article{
author = "Milanović, Ivana and Milovanović, Petar and Antonijević, Đorđe and Dželetović, Bojan and Đurić, Marija and Miletić, Vesna",
year = "2020",
abstract = "Introduction: Open pores between endodontic sealer and root canal walls present potential niches for bacterial growth and migration pathways. The aim was to assess the internal and external porosity of calcium silicate-based sealers and to ascertain the long-term effect of storage in simulated body fluid on sealer porosity. Methods: Sixteen single-rooted teeth were filled with gutta-percha and 1 of 4 root canal sealers: BioRoot RCS, EndoSequence BC, MTA Fillapex, or AH Plus. Obturated roots, stored in Hank's balanced salt solution, were scanned after 7 days and after 6 months by using micro-computed tomography at an isotropic resolution of 9.9 mm. Total, open, and closed porosity were calculated in the coronal, middle, and apical thirds. Data were statistically analyzed by using general linear model and paired t test (alpha = 0.05). Results: Significantly higher percentage of open than closed porosity was found in all groups. Initially, significantly greater open and total porosity were found for MTA Fillapex than for AH Plus. After 6 months, the percentage of open and total porosity increased in BioRoot RCS and MTA Fillapex and decreased in AH Plus and EndoSequence BC. Both initially and after storage, coronal region of all sealers had significantly greater total porosity than middle and apical regions, which were comparable. Conclusions: None of the root fillings were void-free, with predominant open porosity persisting after long-term storage.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Endodontics",
title = "Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers",
volume = "46",
number = "4",
pages = "515-523",
doi = "10.1016/j.joen.2020.01.007"
}
Milanović, I., Milovanović, P., Antonijević, Đ., Dželetović, B., Đurić, M.,& Miletić, V.. (2020). Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers. in Journal of Endodontics
Elsevier Science Inc, New York., 46(4), 515-523.
https://doi.org/10.1016/j.joen.2020.01.007
Milanović I, Milovanović P, Antonijević Đ, Dželetović B, Đurić M, Miletić V. Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers. in Journal of Endodontics. 2020;46(4):515-523.
doi:10.1016/j.joen.2020.01.007 .
Milanović, Ivana, Milovanović, Petar, Antonijević, Đorđe, Dželetović, Bojan, Đurić, Marija, Miletić, Vesna, "Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers" in Journal of Endodontics, 46, no. 4 (2020):515-523,
https://doi.org/10.1016/j.joen.2020.01.007 . .
