Year : 2020

Volume : Volume 11

Issue : Issue 2s

Address for correspondence :
Dr. Ahsan Mozaffar.
ahsanmozaffar@gmail.com

Abstract

Aim:  To evaluate and compare the compressive strength of a ceramic-reinforced glass ionomer and resin-based high strength glass ionomer cement with a nanohybrid composite  Material and methods: 30maxillary premolar teeth were selected. Selected teeth after cleaning were mounted in acrylic resin blocks exposing the crown. Class II cavities were prepared. Samples were divided into three groups of 10teeth; Group 1: Class II cavity restored with nanohybrid composite (control group). Group 2: Class II cavity restored with ceramic reinforced GIC Group 3: Class II cavity restored with resin-based GIC. Restored samples stored in artificial saliva for two weeks and thermocycling were done for 500 cycles between the temperature of 4-degree Celsius to 45 degree Celsius and subjected to compressive strength test using the universal testing machine at a crosshead speed of 0.5 mm/min. The failure load was recorded. SPSS software was employed for statistical analysis. Mean compressive strength and mean compressive load was calculated Results: One-way analysis of variance (ANOVA) followed by post hoc tests served for comparison of compressive strength among the study groups. The significance level was set at 0.001.  Conclusion: Nanohybrid composite has high compressive strength compared to ceramic reinforced glass ionomer cement, and resin-coated glass ionomer cement.

Keywords: Amalgomer CR, Compressive strength, Equia Forte, Posterior class II restorations, Tetric N Ceram.