An In-vitro Study to Determine the Sealing Ability of Biodentine when used as a Class II Restorative MaterialCorrespondence Address :
H. No. 1, Gujjar Colony, Narwal By-pass, Jammu, Jammu and Kashmir, India.
Introduction: Microleakage is a major setback to restorative dentistry. Leakage at the tooth/restoration interface may lead to numerous problems like postoperative sensitivity, recurrent caries, marginal sealing and later total failure of restoration.
Aim: To determine the microleakage thus sealing ability of a new hydraulic calcium silicate cement (Biodentine) as a base material and a bulk filling material.
Materials and Methods: An in-vitro study was conducted with ten freshly extracted maxillary molars from March 2019 to June 2019. Standardised Class II cavities were prepared on mesial and distal proximal surfaces. The twenty prepared samples were randomly divided into two groups (n=10)- G1 (BiodentineTM group) and G2 (BiodentineTM + Tetric N-Ceram group). The samples were subjected to thermocycling, followed by 1% methylene blue dye immersion. They were subsequently sectioned both buccolingually and mesiodistally in order to separate to proximal restorations (mesial and distal) and appreciate the amount of dye penetration at tooth/restoration interface respectively. Microleakage was evaluated by observing the samples under a stereomicroscope (30x). The data obtained was analysed using one-way ANOVA test and compared using Post-hoc test. p-value <0.05 to be considered significant.
Results: Biodentine showed no significant difference between the sealing ability as a bulk filling and a base material. Group G2 (0.35) indicated comparatively less microleakage as compared to group G1 (0.6) but the difference in microleakages in both groups was insignificant (p-value 0.083467).
Conclusion: BiodentineTM exhibits microleakage when used as a bulk filling material and as a dentin substitute in Class II cavities since there is no significant difference in both the groups.
Dentin substitute, Dye penetration, Restoration, Thermocycling
Date of Submission: Jun 03, 2020
Date of Peer Review: Jul 18, 2020
Date of Acceptance: Sep 02, 2020
Date of Publishing: Nov 01, 2020
• Financial or Other Competing Interests: None
• Was Ethics Committee Approval obtained for this study? Yes
• Was informed consent obtained from the subjects involved in the study? NA
• For any images presented appropriate consent has been obtained from the subjects. NA
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ETYMOLOGY: Author Origin
- Emerging Sources Citation Index (Web of Science, thomsonreuters)
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- Academic Search Complete Database
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- Indian Science Abstracts (ISA)
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- Popline (reproductive health literature)