Effect of fluoride-containing solutions on the surface of cast commercially pure titanium.
This study evaluated the effects of fluoride-containing solutions on the surface of commercially pure titanium (CP Ti) obtained by casting. CP Ti specimens were fabricated and randomly assigned to 5 groups (n=10): group 1: stored in distilled water at 37 +/- 1 masculineC; group 2: stored in distilled water at 37 +/- 1 masculineC and daily immersed in 0.05% NaF for 3 min; group 3: stored in distilled water at 37 +/- 1 masculineC and daily immersed in 0.2% NaF for 3 min; group 4: stored in distilled water at 37 +/- 1 masculineC; and immersed in 0.05% NaF every 15 days for 3 min; and group 5: stored in distilled water at 37 +/- 1 masculineC and immersed in 0.2% NaF every 15 days for 3 min. Surface roughness was measured with a profilometer immediately after metallographic polishing of the specimens (T0) and at 15-day intervals until completing 60 days of experiment (T15, T30, T45, T60). Data were analyzed statistically by ANOVA and Tukey's test (alpha=0.05). There was no statistically significant difference (p>0.05) in surface roughness among the solutions. In conclusion, fluoride-containing solutions (pH 7.0) used as mouthwashes do not damage the surface of cast CP Ti and can be used by patients with titanium-based restorations.
Department of Dental Materials and Prosthodontics, University of São Paulo, Ribeirão Preto, SP, Brazil.
Marcelo Bighetti
MB
Toniollo
Rodrigo
R
Tiossi
Ana Paula
AP
Macedo
Renata Cristina Silveira
RC
Rodrigues
Ricardo Faria
RF
Ribeiro
Maria da Gloria Chiarello de
Mda G
Mattos
D000704:Analysis of Variance; D002327:Cariostatic Agents / Q000737:chemistry*; D003343:Corrosion; D003764:Dental Materials / Q000737:chemistry; D012969:Sodium Fluoride / Q000737:chemistry*; D018709:Statistics, Nonparametric; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D002327:Cariostatic Agents; D003764:Dental Materials; D012969:Sodium Fluoride; D014025:Titanium