Method: In this research, the tribocorrosion of sealants and glass–ionomer presently used in the dental practice as preventive material is studied. Tests were conducted in Fusayama modified artificial saliva solution. Tribocorrosion tests were conducted in the reciprocating sliding configuration in contact with natural teeth. Normal load was varied between 3 and 10 N. The surface mechanical, structural and chemical properties of the tested materials, teeth and surfaces were evaluated by nano-indentation, XRD and SEM/EDS.
Result: Group 1 – sealants+3N: 1.31 (±0.81); Group 2 – sealant+10N: 0.73(±0.25); Group 3 – glass-ionomer+3N: 0.96(±0.16); Group 4 – glass-ionomer+10N: 0.59(±0.09).
Conclusion: In particular it was observed that the wear mechanisms depending on the applied load and the material used. Finally, in some conditions, the surface mechanical properties of the natural teeth were altered due to the transferance of material from the counterface.
Keywords: Composites, Glass ionomers, Mastication, Teeth and Wear
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