Woolford M J, Grieve A R
Department of Conservative Dentistry, Dental School, University of Dundee, UK.
J Dent. 1995 Aug;23(4):233-7. doi: 10.1016/0300-5712(95)91188-s.
This study was designed to examine the effect of the application of radiant heat on the fluoride release from the surface of a glass polyalkenoate cement.
The radiant heat was applied at different intensities and for different time intervals using a high-intensity fibreoptic quartz halogen light source. A standard technique was used to measure the amount of fluoride released from one surface of a cement specimen into deionized water. Fluoride release was measured for a time period of over 2 years.
Results showed that fluoride was still being released 2 years after placement. The application of radiant heat did not have a statistically significant effect on the release of fluoride from the surface of this material.
There appeared to be a trend suggesting that the greater the amount of heat applied, the less fluoride was released from the surface of the cement. A considerable inter- and intrabatch variation was noted in the amount of fluoride released from the cement.
