Quantitative Assessment of Fluoride Release and Recharge Ability of Different Restorative Materials in Different Media: An In Vitro Study
ZC31-ZC34
Correspondence
Dr. Mahesh Jingarwar,
Post Graduate Student, Department of Pedodontics & Preventive Dentistry,
Government Dental College and Hospital, Patiala, India.
Phone: 8699365070, Email: dr.maheshjingarwar@gmail.com
Objective: To measure fluoride release and recharge ability of restorative materials in deionised water, artificial saliva and lactic acid.
Materials and Methods: Pellets were prepared from GC2, Ketac N100 and Beautifil II. Each pellets were individually immersed in 10 ml deionised water, artificial saliva or lactic acid as per respective subgroup for 24 h and then elutes were collected. Specimens were reimmersed in respective container. Fluoride released was analysed after 24 h, 7th and 15th day. On 15th day all specimens were exposed to 1.23% APF gel and fluoride release in respective solution was measured on 16th, 22nd, 30th day.
Result: Fluoride release was more after 24 h for all materials in all media then decrease gradually. GC2 shows more fluoride release than Ketac N100 at 24 hours and on 7th day but onwards Ketac N100 released significantly more fluoride. Beautifil II showed least fluoride release at all measured intervals in all media. Order of fluoride release in media was lactic acid > deionised water > artificial saliva for all materials.
Conclusion: GICs are smart material which release more fluoride when environment become more acidic and also show tendency to recharge which helps clinically in caries risk children.