Corrosion Behavior Of Titanium In Artificial Saliva With Intraoral Fluoride Releasing-controlled Device

Objective: The purpose of this study was to investigate the roughness of titanium alloy expose to IFRD 5,10,25 days in vitro.Materials and methods: 24 titanium abutments were divided into 4 groups at random. Group A,B and C samples were immersed into 20ml artificial saliva with 2 IFRDs for 5,10, 25 days equal to 1,2,5 years in vivo respectively. Group D samples were immersed into 20ml artificial saliva without IFRD and were regarded as blank control. Their roughness values were measured by interference microscope.Results: Roughness values of group A,B,C,D were respectively (0.302±0.025)μm, (0.311±0.035)μm,(0.330±0.039)μm, (0.292±0.030)μm. There was no significantly difference between any two groups(A-B, A-C, A-D, B-C, B-D, C-D).Conclusion: IFRD had no significant effect on surface roughness increase of titanium alloy.