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RESEARCH PRODUCT
Effects of Polyacrylic Acid Pre-Treatment on Bonded-Dentine Interfaces Created with a Modern Bioactive Resin-Modified Glass Ionomer Cement and Subjected to Cycling Mechanical Stress
José Antonio García BautistaRaquel Gonzalez MartínezVicente Faus-matosesJuan Manuel Nuñez MartíSalvatore SauroVicente Faus-llácerIrina Makeevasubject
polyacrylic acid treatmentGlass ionomer cement02 engineering and technologyCementos dentales.lcsh:TechnologyAdhesivos dentales.Dental adhesives.dentinechemistry.chemical_compound0302 clinical medicineDentinGeneral Materials ScienceComposite materiallcsh:QC120-168.85bioactiveBond strengthPolyacrylic acidAbrasive021001 nanoscience & nanotechnologyDentin.adhesionmedicine.anatomical_structureDental materials.0210 nano-technologylcsh:TK1-9971cycling mechanical stressresin-modified glass ionomer cementsPolyacrylic acid - Therapeutic use.Materials scienceArticle03 medical and health sciencesstomatognathic systemlongevityDental cementmedicineMateriales dentales.Odontología restauradora.lcsh:MicroscopyDentina.CementRemineralisationDental cements.lcsh:QH201-278.5lcsh:T030206 dentistrychemistrylcsh:TA1-2040lcsh:Descriptive and experimental mechanicslcsh:Electrical engineering. Electronics. Nuclear engineeringlcsh:Engineering (General). Civil engineering (General)Ácido poliacrílico - Uso terapéutico.Dentistry Operative.description
Objectives: Resin-modified glass ionomer cements (RMGIC) are considered excellent restorative materials with unique therapeutic and anti-cariogenic activity. However, concerns exist regarding the use of polyacrylic acid as a dentine conditioner as it may influence the bonding performance of RMGIC. The aim of this study was to evaluate the effect of different protocols for cycling mechanical stress on the bond durability and interfacial ultramorphology of a modern RMGIC applied to dentine pre-treated with/without polyacrylic acid conditioner (PAA). Methods: The RMGIC was applied onto human dentine specimens prepared with silicon-carbide (SiC) abrasive paper with or without the use of a PAA conditioner. The specimens were immersed in deionised water for 24 h then divided in 3 groups. The first group was cut into matchsticks (cross-sectional area of 0.9 mm2) and tested immediately for microtensile bond strength (MTBS). The second was first subjected to load cycling (250,000 cycles
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-10-01 | Materials |