Effectiveness of Ketac Nano Restoration in Class II Cavities in Primary Molars: A Randomized Controlled Clinical Trial
Introduction: Nanofilled glass ionomer cement emerged as a new generation of dental materials, which mineralizes gradually into fluorapatite to improve the compressive strength and wear resistance of class II restorations in primary molars. The purpose of this study was to evaluate clinically the effectiveness of glass carbomer cement with surface coat as class II restorations in primary molars in comparison to both of Ketac N 100 glass ionomer cement with surface coat and conventional glass ionomer cement with surface coat (Equia Fill).
Materials and methods: This randomized controlled clinical trial included a sample of 117 children were selected with an age range of 4-7 years, having class II carious primary molars scoring 3, 4 or 5 (ICDAS II). They were randomly equally allocated into three groups according to the restorative material used- Group I (test): Teeth were restored with glass carbomer cement, Group II (test): Teeth were restored with Ketac N 100 glass ionomer cement and Group III (control): Teeth were restored with (Equia Fill). Clinical evaluation was performed at baseline, 6 and 12 months.
Results: Nano filled GICs (Ketac N and glass carbomer cement) showed significant higher retention rate and durability than Equia fill GIC at three examination times (baseline, 6 and 12 months) P<0.0001. Regarding the effect of the restorations on periodontal health there were statistically significant difference between the three study groups at baseline and 6 months P<0.0001. No statistically significant differences were found between three study groups at 12 months P=0.02.
Conclusion: Nanofilled GICs were more effective in restoring class II cavities in primary molars as well as having better consequential effect on the periodontal health compared to the conventional GICs.