Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation
Abstract
Objectives: The aim of this study was to test long-term microtensile bond strength (mu TBS) of 2 universal adhesives applied to dentin following "total-etch" (TE) or "self-etch" (SE) protocols and aged by direct or indirect water exposure using simulated pulpal pressure. Materials and methods: Single Bond Universal (SBU, 3M ESPE) or Ipera Bond (IP, Itena) were applied to mid-coronal dentin ("flat dentin") or Class I cavity ("cavity dentin") following TE or SE protocols in 112 extracted human third molars. Sixteen groups (n=7 per group) were prepared, 8 groups for mu TBS measurements after 24 hours, and further 8 groups for measurements after 6 months storage. "Cavity dentin" groups were subjected to simulated hydrostatic pulpal pressure of 15 cm H2O using a custom-made device before cutting 1 x 1 mm sticks while "flat dentin" groups were cut into sticks and directly exposed to deionized water. Results: Generally, the TE protocol resulted in highest mu TBS values on flat dentin initiall...y for both adhesives (general linear model, P lt .05). Long-term storage resulted in significantly lower mu TBS values for the TE protocol (P lt .05) while the SE protocol showed comparable values after 6 months (P>.05). "Cavity dentin" with simulated pulpal pressure resulted in lower mu TBS than "flat dentin" (P lt .05). For both adhesives, mu TBS was in the range of 19-42 MPa initially and 16-36 MPa after 6 months storage. Conclusions: mu TBS to dentin of universal adhesives is more stable in the long term following the SE than TE protocol. Simulated pulpal pressure and cavity-type sample preparation may be recommended for mu TBS testing as a more clinically relevant strategy.
Keywords:
cavity dentin / flat dentin / microtensile bond strength / simulated pulpal pressure / universal adhesivesSource:
Journal of Esthetic & Restorative Dentistry, 2018, 30, 3, 240-248Publisher:
- Wiley, Hoboken
Funding / projects:
- Development and Application of Methods and Materials for Monitoring New Organic Contaminants, Toxic Compounds and Heavy Metals (RS-172007)
- Pain Control and Molecular Mechanisms as Factors for Tissue Regeneration in Dentistry in Healthy and Diabetic Patients (RS-175021)
DOI: 10.1111/jerd.12363
ISSN: 1496-4155
PubMed: 29377533
WoS: 000436802000008
Scopus: 2-s2.0-85041057174
Collections
Institution/Community
Stomatološki fakultetTY - JOUR AU - Ležaja-Zebić, Maja AU - Dželetović, Bojan AU - Miletić, Vesna PY - 2018 UR - https://smile.stomf.bg.ac.rs/handle/123456789/2299 AB - Objectives: The aim of this study was to test long-term microtensile bond strength (mu TBS) of 2 universal adhesives applied to dentin following "total-etch" (TE) or "self-etch" (SE) protocols and aged by direct or indirect water exposure using simulated pulpal pressure. Materials and methods: Single Bond Universal (SBU, 3M ESPE) or Ipera Bond (IP, Itena) were applied to mid-coronal dentin ("flat dentin") or Class I cavity ("cavity dentin") following TE or SE protocols in 112 extracted human third molars. Sixteen groups (n=7 per group) were prepared, 8 groups for mu TBS measurements after 24 hours, and further 8 groups for measurements after 6 months storage. "Cavity dentin" groups were subjected to simulated hydrostatic pulpal pressure of 15 cm H2O using a custom-made device before cutting 1 x 1 mm sticks while "flat dentin" groups were cut into sticks and directly exposed to deionized water. Results: Generally, the TE protocol resulted in highest mu TBS values on flat dentin initially for both adhesives (general linear model, P lt .05). Long-term storage resulted in significantly lower mu TBS values for the TE protocol (P lt .05) while the SE protocol showed comparable values after 6 months (P>.05). "Cavity dentin" with simulated pulpal pressure resulted in lower mu TBS than "flat dentin" (P lt .05). For both adhesives, mu TBS was in the range of 19-42 MPa initially and 16-36 MPa after 6 months storage. Conclusions: mu TBS to dentin of universal adhesives is more stable in the long term following the SE than TE protocol. Simulated pulpal pressure and cavity-type sample preparation may be recommended for mu TBS testing as a more clinically relevant strategy. PB - Wiley, Hoboken T2 - Journal of Esthetic & Restorative Dentistry T1 - Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation VL - 30 IS - 3 SP - 240 EP - 248 DO - 10.1111/jerd.12363 ER -
@article{ author = "Ležaja-Zebić, Maja and Dželetović, Bojan and Miletić, Vesna", year = "2018", abstract = "Objectives: The aim of this study was to test long-term microtensile bond strength (mu TBS) of 2 universal adhesives applied to dentin following "total-etch" (TE) or "self-etch" (SE) protocols and aged by direct or indirect water exposure using simulated pulpal pressure. Materials and methods: Single Bond Universal (SBU, 3M ESPE) or Ipera Bond (IP, Itena) were applied to mid-coronal dentin ("flat dentin") or Class I cavity ("cavity dentin") following TE or SE protocols in 112 extracted human third molars. Sixteen groups (n=7 per group) were prepared, 8 groups for mu TBS measurements after 24 hours, and further 8 groups for measurements after 6 months storage. "Cavity dentin" groups were subjected to simulated hydrostatic pulpal pressure of 15 cm H2O using a custom-made device before cutting 1 x 1 mm sticks while "flat dentin" groups were cut into sticks and directly exposed to deionized water. Results: Generally, the TE protocol resulted in highest mu TBS values on flat dentin initially for both adhesives (general linear model, P lt .05). Long-term storage resulted in significantly lower mu TBS values for the TE protocol (P lt .05) while the SE protocol showed comparable values after 6 months (P>.05). "Cavity dentin" with simulated pulpal pressure resulted in lower mu TBS than "flat dentin" (P lt .05). For both adhesives, mu TBS was in the range of 19-42 MPa initially and 16-36 MPa after 6 months storage. Conclusions: mu TBS to dentin of universal adhesives is more stable in the long term following the SE than TE protocol. Simulated pulpal pressure and cavity-type sample preparation may be recommended for mu TBS testing as a more clinically relevant strategy.", publisher = "Wiley, Hoboken", journal = "Journal of Esthetic & Restorative Dentistry", title = "Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation", volume = "30", number = "3", pages = "240-248", doi = "10.1111/jerd.12363" }
Ležaja-Zebić, M., Dželetović, B.,& Miletić, V.. (2018). Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation. in Journal of Esthetic & Restorative Dentistry Wiley, Hoboken., 30(3), 240-248. https://doi.org/10.1111/jerd.12363
Ležaja-Zebić M, Dželetović B, Miletić V. Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation. in Journal of Esthetic & Restorative Dentistry. 2018;30(3):240-248. doi:10.1111/jerd.12363 .
Ležaja-Zebić, Maja, Dželetović, Bojan, Miletić, Vesna, "Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation" in Journal of Esthetic & Restorative Dentistry, 30, no. 3 (2018):240-248, https://doi.org/10.1111/jerd.12363 . .