International Journal of Research and Review Vol.7; Issue: 8; August 2020 Website: www.ijrrjournal.com Original Research Article E-ISSN: 2349-9788; P-ISSN: 2454-2237 International Journal of Research and Review (ijrrjournal.com) 257 Vol.7; Issue: 8; August 2020 Comparative Evaluation of the Effect of Various Surface Coating Agents on Fluoride Release from Conventional Glass Ionomer Cement in Deionized Water, Artificial Saliva and Lactic Acid - An In-Vitro Study Sathiyavathi Mahendra Kumar 1 , Bhavana Vankayala 2 , Geetha K 3 , Mahendra Kuamar S 4 , Leneena Gudugunta 5 , Purnima Jevaji 6 1 Lecturer, Department of Pedodontics and Preventive Dentistry, AIMST University, Malaysia. 2 Assistant Professor, Department of Conservative Dentistry and Endodontics, Government dental college and hospital, Hyderabad, Telangana, India. 3 Faculty, Department of Pedodontics and Preventive Dentistry, Rajah Muthiah Dental College & Hospital, Annamalai University, India. 4 Faculty, Department of Oral maxillofacial surgery, Rajah Muthiah Dental College & Hospital Annamalai University, India. 5 Lecturer, Department of Conservative Dentistry and Endodontics, AIMST University, Malaysia. 6 Research Assistant, Department of Research, The George Institute of Global Health, Hyderabad, Telengana. Corresponding Author: Bhavana Vankayala ABSTRACT Introduction: To know the effect of surface coating agents on the fluoride release property of conventional Glass Ionomer Cements (GIC) when stored in different storage media. Materials and Method: Forty-five pellets were fabricated from conventional GIC (GC Fuji type ii capsules) and were randomized into three groups (Group I, II and III)of 15 each. Group I samples were uncoated, group II coated with petroleum jelly and group III were coated with G-coat plus (Nano-filled protective coating). Each group were divided into 3 subgroups consisting of 5 samples which were suspended in each immersion solution in deionized water, artificial saliva and lactic acid and were renewed every 24 hours for 15 days. The fluoride release was measured on day 1 st ,3 rd , 7 th and 15 th by using UV light visible spectrophotometer. Results: In deionized water and artificial saliva, for all the 3 groups the mean fluoride release values were found to be fluctuating, as, from 1 st day it showed a increased release on 3 rd day and subsequently decreased till 15 th day where as in lactic acid, it showed a highest release on 1 st day and then gradually decreased till 15 th day. On intergroup comparison, G-coat plus showed very minimal fluctuation of fluoride release and was statistically significant. Conclusion: The result concludes that fluoride release from the conventional GIC was reduced with the application of surface coating and maximum fluoride release was observed in low pH environment. Conventional GIC when protected with G-coat plus showed minimal fluctuation in fluoride release, thus allowing sustained release for a longer period of time. Keywords: Fluoride Release, Surface Coating Agents, Glass Ionomer Cement, Deionized Water, Artificial Saliva and Lactic Acid INTRODUCTION Dental caries is a multifactorial disease in which fermentation of dietary sugars by bacteria from the oral biofilm leads to localized demineralization of tooth surfaces, which may ultimately result in cavity formation 1 . The GICs are one of the products developed in this direction and are widely used in Paediatric operative dentistry because of their ability to adhere to/bond with enamel and dentin without any pre- treatment and potential to release fluoride