Influence of Thickness of Endocrown and Ceramic Translucency on The Degree of Conversion of Resin Cement (In Vitro Study)

Bih, Sara Shoukri Mousa; Zohdy, Maged; Foudah, Sara Mehanna; Farag, Engy Adel Ahmed

doi:10.21608/edj.2024.273175.2960

	Influence of Thickness of Endocrown and Ceramic Translucency on The Degree of Conversion of Resin Cement (In Vitro Study)
Egyptian Dental Journal
Volume 70, Issue 2 - Serial Number 4, April 2024, Page 1827-1835 PDF (673.81 K)
Document Type: Original Article
DOI: 10.21608/edj.2024.273175.2960
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Authors
Sara Shoukri Mousa Bih ¹; Maged Zohdy ²; Sara Mehanna Foudah ³; Engy Adel Ahmed Farag ⁴
¹Post Graduate Student at Fixed Prosthodontics Department, Ain Shams University
²Professor of Fixed Prosthodontics, Faculty of Dentistry, Ain Shams University
³Lecturer of Fixed Prosthodontics, Faculty of Dentistry, Ain Shams University
⁴Lecturer of Fixed Prosthodontics Department, Faculty of Dentistry , The British University in Egypt
Abstract
Abstract Objective: Various factors influence the degree of conversion of dual-cure resin cement, including the restoration thickness, and the translucency of the ceramic material. This study aims to explore the impact of endocrown thickness and ceramic material translucency on the degree of conversion of dual-cure resin cement. Material and Methods: Forty ceramic samples of vita Enamic were used. They were categorized into four groups based on the translucency T (n=10) and HT (n=10) and thickness 3mm (n=10) and 5mm (n=10). Two specially designed Teflon molds were fabricated for each thickness. The ceramic samples were placed inside the mold followed by dual cure Self-Adhesive Resin. The dual cured resin cement had a 0.1mm thickness. The cement film was detached from the ceramic samples. Then the Fourier Transform Infrared Spectroscopy was used to measure the degree of conversion. Results: Two-way ANOVA showed significant differences between the different thicknesses of ceramic and different translucencies on the degree of conversion of the dual resin cement (p < 0.05). Conclusion: Ceramic thicknesses have a significant influence on the degree of conversion of the underlying dual cure resin cement. Higher translucencies of ceramic material show higher cement conversion than lower translucencies.
Keywords
Ceramic Thickness; Hybrid Ceramic; Translucency; Degree of conversion


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