Comparative Evaluation of Microleakage of Zirconomer, Amalgomer CR, and Conventional Glass Ionomer

Over the past 50 years, many changes have occurred in restorative materials in development and on availability.1 Restorative dentistry, in its infancy, was dominated by the simple principle of “Extension for Prevention,” laid down by GV Black and which was partially dictated by the restorative material available at that time.2 Restoration in primary teeth differs from the permanent teeth because of limited lifespan of teeth, different morphology of primary molar teeth, and their susceptibility to caries, lower biting force in children.3 The ideal requisites for restorative material are that it should have a good color stability, have a coefficient of thermal expansion, have biocompatibility similar to that of natural tooth structure, excellent marginal seal, and the ability to adhere chemically to enamel and dentin.4 1,4,5Postgraduate Resident, 2Professor and Head, 3Reader 6Senior Lecturer 1-5Hitkarini Dental College & Hospital, Jabalpur, Madhya Pradesh, India