Journal article
Evaluation of Novel Plant-derived Monomers-based Pretreatment on Bonding to Sound and Caries-affected Dentin
Operative dentistry, Vol.47(1), pp.E12-E21
01/01/2022
DOI: 10.2341/20-138-L
PMID: 34963010
Abstract
SUMMARY
This study evaluated the influence of new monomers derived from cashew nut shell liquid (CNSL) applied for dentin biomodification on resin–dentin bond strength, nanoleakage, and micropermeability to sound and artificially-created caries-affected dentin. Human dentin specimens were assigned to five groups, according to the following dentin pretreatment solutions: Absolute ethanol (control), 2 wt% grape seed extract (Vitis vinifera), 2 wt% cardol [from cashew nut shell liquid (CNSL)], 2 wt% cardol-methacrylate or 2 wt% cardanol-methacrylate applied on sound and artificial caries-affected dentin. Specimens were analyzed after 24 hour or 1 year of water storage. Microtensile bond strength (μTBS) (n=6), interface micropermeability (n=3), and silver nanoleakage (n=6) were assessed using a universal testing machine, confocal laser scanning microscope, and scanning electron microscope, respectively. In sound dentin, no difference in bond strength was observed between the groups in either storage period. In artificial caries-affected dentin, pretreatment with cardol-methacrylate resulted in statistically higher bond strength than all the other treatments in both storage periods. Cardol-methacrylate treatment resulted in less nanoleakage, along with improved interfacial integrity, compared to further treatments in artificial caries-affected dentin. Regarding micropermeability analysis, all treatments depicted deficient sealing ability when applied on artificial caries-affected dentin, with the presence of gaps in the control group. In conclusion, cardol-methacrylate is a promising plant-derived monomer to reinforce the hybrid layer, since it preserved resin–dentin bond strength and improved dentin bonding, especially to caries-affected dentin, a well-known harsh substrate for adhesion longevity.
Details
- Title: Subtitle
- Evaluation of Novel Plant-derived Monomers-based Pretreatment on Bonding to Sound and Caries-affected Dentin
- Creators
- MVS Lemos - VictorV G Araujo-Neto - Pontifícia Universidade Católica de São PauloD Lomonaco - Universidade Federal do CearáS E Mazzetto - Universidade Federal do CearáV P Feitosa - Paulo Picanço School of DentistryS L Santiago - Universidade Federal do Ceará
- Resource Type
- Journal article
- Publication Details
- Operative dentistry, Vol.47(1), pp.E12-E21
- DOI
- 10.2341/20-138-L
- PMID
- 34963010
- ISSN
- 0361-7734
- eISSN
- 1559-2863
- Language
- English
- Date published
- 01/01/2022
- Academic Unit
- Operative Dentistry
- Record Identifier
- 9984655344502771
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