Enhancement of NiTi superelastic endodontic instruments by TiO2 coating.
Rotary nickel-titanium (NiTi) endodontic instruments were coated with a nanometric flexible TiO2 layer through dip-coating sol-gel. Control groups and coated samples of superelastic NiTi instruments model RaCe 25/0.06 (0.25mm tip-diameter, 6% conicity) were comparatively investigated with respect to the cutting efficiency, fatigue life, and corrosion resistance. Results showed an improvement in cutting efficiency for the coated samples and a high resistance to corrosion in NaClO. The coated instruments showed a better performance in fatigue life after corrosion.
['Aun|Diego Pinheiro|DP|', 'Peixoto|Isabella Faria da Cunha|IFDC|', 'Houmard|Manuel|M|', 'Buono|Vicente Tadeu Lopes|VTL|']
D000497:Alloys D020099:Coated Materials, Biocompatible D009532:Nickel D014025:Titanium
Dip-coating sol-gel Cutting efficiency Fatigue Corrosion NiTi endodontic instruments TiO(2) ceramic nanolayer