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Vaibhavi Belwalkar
Sanjivani Hospital, India
ScientificTracks Abstracts: Dentist Case Rep
Statement of problem: Loss of retention has been cited to be the most common cause of the failure of post-retained restoration with irreversible consequences especially when materials with different compositions are in intimate contact at the post-resin interface. The weaker adhesion at the post-resin interface may be due to a lack of strong chemical bonding between resin luting agents and the polymerized epoxy matrices of fiber-reinforced posts. Aim: The purpose of this study is to compare the effect of the chemicals namely silane(S), hydrogen peroxide(H2O2), hydrofluoric acid (HF), and potassium permanganate(kmno4) that can enhance the adhesion at the post-resin interface and to investigate their morphologic aspect using a scanning electron microscope (SEM). Material and Methods: 100 glass fiber-reinforced posts (DT light posts) were divided into four groups (n=25) namely, Group A: Salinization, Group B: Treatment with 20% vol kmno4 followed by salinization, Group C: Treatment with 4%HF followed by salinization, Group D: Treatment with 10%H2O2 followed by salinization. These specimens were bonded with a dual polymerizing resin-based luting agent (Calibra), and subjected to a shear load at a cross-head speed of 1mm/min until failure, using a universal testing machine (Instron 4467). Means and standard deviations were calculated using analysis of variance (ANOVA). Further SEM analysis was done to study the characteristics of the post-resin interface. Results: Dissolution of the epoxy resin matrix occurred in each of the four groups except for Group A which showed poor ultrastructural changes respectively. Conclusion: A combination of chemical pre-treatments followed by salinization enhanced the bond strength at the post-adhesive interface. Recent Publications: 1. Comparison of evaluation of the sealing ability of bio dentine carried out under three different working conditions using glucose penetration method – An In-vitro stud—European Journal of Molecular and clinical medicine,2020, Volume 7, Issue 7, Pages 1684-1691. 2. Belwalkar VR, Gade J, Mankar NP. Comparison of the effect of shear bond strength with silane and other three chemical surface treatments of a glass fiber-reinforced post on adhesion with a resin-based luting agent: An in vitro study. Contemp Clin Dent. 2016 Apr-Jun;7(2):193-7. 3. Title for ebook: “RESTORATION OF EXTENSIVELY DAMAGED TEETH.” A Book through LAMBERT PUBLISHING ACADEMY (2014).
A self-motivated and energetic speaker, a creative person with a goal-oriented approach working for reputed institutions. She has represented as a team leader and master of ceremonies for several continuing dental education projects and workshops. Her efforts in improving the student experience as a guide and mentor have helped her to achieve a reputation for transparency and innovation. With more than 12 years of experience in prosthetic and cosmetic dentistry, she is adept in maxillofacial rehabilitation, the development of occlusion, corrections of TMJ, and removable or implant-supported dentures. She has enormous contribution to the Indian Prosthodontic Society (IPS) and is an award winner for varied clinical research and digital reviews held at national and international conventions. Her research work received excellent feedback which was acknowledged in the journal published by Elsevier. Her e-book through Lambert publishing academy held immense responses internationally on Amazon. She is open to expanding her services and footprint at a global level.
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