Evaluation of Microleakage in Zirconomer®: A Zirconia Reinforced Glass Ionomer Cement

OBJECTIVE: To evaluate the microleakage of four direct restorative materials. MATERIALS AND METHODS: C. The samples were immersed in dye solution of 0.5% methylene blue for 24 hr. Each filled cavity was sectioned through the centre of restoration and then studied under a stereomicroscope to assess the marginal leakage. The obtained microleakage scores were statistically analysed. RESULTS: Silver and amalgam, whereas the Zirconomer groups had no significant differences with composites. All tested groups showed significant differences with amalgam restorations. CONCLUSIONS: The marginal leakage was evident in all restorative materials. Further studies with clinical trial have to be done.