Journal of Research and Advancement in Dentistry
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Year : 2024
Volume : Volume 16
Issue : Issue 5
Address for correspondence :
Dr. Raksha Mishra
rakshamishra49@gmail.com
Introduction: This study is undertaken to evaluate and compare the shear bond strength of Biodentine to primary and permanent dentin after 2 days, 7 days, and 14 days and microleakage in primary and permanent dentin. Materials and Methods: A total of 60 primary and 60 permanent teeth were selected for study out of which 30 primary and 30 permanent teeth were evaluated for microleakage and rest teeth were divided into 3 subgroup of primary containing 10 sample in each and same for permanent teeth, which were evaluated for shear bond strength at 2 days, 7 days, and 14 days. Coronal dentin was exposed, and teeth were embedded into self-cure acrylic. For shear bond testing, a standardized PVC mold was placed over exposed dentin and restored with Biodentine and evaluated after 2 days, 7 days, and 14 days using a universal testing machine. For microleakage testing, a standardized classI cavity was prepared with 2 mm depth and filled with Biodentine and subject to thermocycling than submerged in 2% methylene blue dye for 24 h. After removing from the dye, teeth were cleaned and sectioned longitudinally and studied under a stereomicroscope. Results: Data were collected, tabulated, and analyzed using analysis of variance test and unpaired t-test. A significant difference (P < 0.0001) in shear bond strength existed at 2 days and 7 days in Biodentine-Primary dentin samples and same for Biodentine-Permanent dentin samples while no significant difference (P > 0.05) in shear bond strength existed at 7 days and 14 days in Biodentine-Primary dentin samples and same for Biodentine-Permanent dentin samples. Statistically insignificant difference existed between shear bond strength of Biodentine to permanent dentin and Biodentine to primary dentin (at 2 days [P = 0.1095, 7 days (P = 0.0895), and 14 days (P = 0.0716]). Biodentine exhibits less microleakage in both permanent (0.833 + 1.085) and primary teeth (0.666 + 0.922), which was statistically insignificant (P = 0.524). Conclusion: Biodentine exhibits the same level of shear bonding and microleakage in both primary and permanent dentin.
