Comparison of Corrosion Properties of Temporary Anchorage Devices in Artificial Saliva, With and Without Fluoride - an in Vitro Study

Abstract

Objectives: To compare the surface changes of three commercially available miniscrews after immersing in artificial saliva with and without fluoride.

Methods: The miniscrews were divided in to three groups-group I(Absoanchor), group II(SK Ti implant),group III(JSV Miniscrews) and were subjected to 2 hours of electrochemical testing using a three electrode setup after being immersed in two artificial saliva solutions- one with fluoride and one without fluoride. The surface topography of these samples were analysed using SEM scanning. The results of the study was subjected to statistical evaluation and conclusion was drawn.

Results: Absoanchorminiscrews showed higher corrosion resistance behavior than S K Ti implant and JSV miniscrews in artificial saliva solution with and without fluoride.

Interpretation and Conclusion: There was a significant drop in corrosion resistance properties in all the three groups when artificial saliva solution containing fluoride was used as the testing medium, thus concluding that topical fluorides may be vital and useful in improving the patient’s oral hygiene maintenance, it must be used judiciously as it might be a factor contributing to miniscrew corrosion and failure.