Comparative Evaluation of Different Irrigating Solutions on Smear Layer Removal of Primary Teeth Root Canals: A Scanning Electron Microscopic Study

Author(s): Heerala Chokotiya*

Introduction: This in vitro study was designed to assess the efficacy of 0.9% normal saline, 5.25% Sodium Hypochlorite, MTAD and Ginger extract as final irrigant in the removal of the smear layer in the coronal, middle, and apical thirds of the root canals of primary teeth after hand instrumentation.

Materials and Methods: 28 human extracted primary teeth were prepared to 40 k file and randomly divided into four groups (n=7) 0.9% Normal Saline, 5.25% Sodium Hypochlorite, MTAD and Ginger extract as final irrigant. The decoronated teeth were split longitudinally into two halves and assessed for the amount of smear layer over dentinal surface. SEM images were taken and scoring was done using Rome criteria and data were analysed using Kruskal-Wallis test, chi-square test and student t test.

Results: Intergroup comparison shown statistically significant difference in all thirds with Biopure MTAD (p<0.0001) compared with other groups.

Conclusion: Biopure MTAD is an effective solution for the removal of the smear layer and the Ginger extract is an herbal alternative as root canal irrigant in primary teeth.


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