Impact of different concentration of calcium fluoride on some properties of acrylic resin material and electrochemical behavior in saliva

Document Type : Original articles

Authors

1 College of Health and Medical Techniques, Middle Technical University, Baghdad , Iraq

2 College of Dentistry University of Baghdad

Abstract

Aim: of the study was to study the consequences of different ratio of calcium fluoride on some properties of heat acrylic resin material (transverse strength and surface roughness)in addition study its electrochemical behavior on the saliva and blood.
 Material and Methods: 40 samples have been intended according to ADA specification dimensions (65x10x2.5)mm length, width and thickness respectively were prepared from acrylic resin material,10 samples without additive (Control) and 30 samples incorporated with CaF2 in different concentrations (1%, 2%and 3%), Transverse strength tested by Instron Universal machine , Roughness test was done by TR 220 portable tester and electrochemical behavior by using cyclic voltammetry.
Results: control group recorded the minimum  mean value for transverse strength and roughness test ,while 3%CaF2 recorded the highest value , for all test the significant were differences between control and CaF2 groups .electrochemical behavior study showed in the acidic pH medium of artificial saliva had oxidative behavior and in alkaline pH medium of artificial saliva had antioxidant property
 Conclusion: The addition of CaF2 showed significant improved in transverse strength ,but had adverse effect on roughness in comparison to control group, calcium fluoride be reliable compound with both saliva and blood and safe for incorporation with dental prostheses at (1%,2%and3%).
 

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