SPECTROPHOTOMETRIC ANALYSIS OF CAD-CAM PRE-CRYSTALLIZED LITHIUM DISILICATE CERAMIC AFTER DIFFERENT SINTERING CYCLES (IN-VITRO STUDY)
Elsheikh, A., Shalaby, Y., El-Sharkawy, F., AboElhassan, R. (2024). SPECTROPHOTOMETRIC ANALYSIS OF CAD-CAM PRE-CRYSTALLIZED LITHIUM DISILICATE CERAMIC AFTER DIFFERENT SINTERING CYCLES (IN-VITRO STUDY). EKB Journal Management System, 49(3), 150-154. doi: 10.21608/adjalexu.2024.276408.1483
Abdurrahman Essam Elsheikh; Yousria Attia Shalaby; Fatma Mohamed El-Sharkawy; Rewaa Gaber AboElhassan. "SPECTROPHOTOMETRIC ANALYSIS OF CAD-CAM PRE-CRYSTALLIZED LITHIUM DISILICATE CERAMIC AFTER DIFFERENT SINTERING CYCLES (IN-VITRO STUDY)". EKB Journal Management System, 49, 3, 2024, 150-154. doi: 10.21608/adjalexu.2024.276408.1483
Elsheikh, A., Shalaby, Y., El-Sharkawy, F., AboElhassan, R. (2024). 'SPECTROPHOTOMETRIC ANALYSIS OF CAD-CAM PRE-CRYSTALLIZED LITHIUM DISILICATE CERAMIC AFTER DIFFERENT SINTERING CYCLES (IN-VITRO STUDY)', EKB Journal Management System, 49(3), pp. 150-154. doi: 10.21608/adjalexu.2024.276408.1483
Elsheikh, A., Shalaby, Y., El-Sharkawy, F., AboElhassan, R. SPECTROPHOTOMETRIC ANALYSIS OF CAD-CAM PRE-CRYSTALLIZED LITHIUM DISILICATE CERAMIC AFTER DIFFERENT SINTERING CYCLES (IN-VITRO STUDY). EKB Journal Management System, 2024; 49(3): 150-154. doi: 10.21608/adjalexu.2024.276408.1483

SPECTROPHOTOMETRIC ANALYSIS OF CAD-CAM PRE-CRYSTALLIZED LITHIUM DISILICATE CERAMIC AFTER DIFFERENT SINTERING CYCLES (IN-VITRO STUDY)

Alexandria Dental Journal
Article 1, Volume 49, Issue 3, December 2024, Page 150-154  XML PDF (386.57 K)
Document Type: Original Article
DOI: 10.21608/adjalexu.2024.276408.1483
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Authors
Abdurrahman Essam Elsheikh email 1; Yousria Attia Shalaby2; Fatma Mohamed El-Sharkawy3; Rewaa Gaber AboElhassanorcid 4
1Department of Fixed Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
2Conservative Dentistry Department, Faculty of Dentistry, Alexandria University
3Photometry Department, National Institute of Standards, Cairo, Egypt
4Department of Conservative Dentistry, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Abstract
Introduction: The growing demand for aesthetic perfection in dentistry has spurred advancements in all-ceramic systems, with a particular focus on mimicking the natural appearance of teeth. This study delves into the effects of different temperatures and modes of sintering processes on the translucency of CAD/CAM pre-crystallized lithium disilicate ceramic.
Aim of the Study: to analyze the effect of different temperatures and modes of sintering processes on CAD/CAM pre-crystallized lithium disilicate ceramic translucency using Spectrophotometer.
Materials and Methods: Using AutoCAD, 96 ceramic discs were designed from Amber Mill. Samples were randomly categorized into different four groups high, medium, low translucency, and medium opacity based on the temperature of crystallization. Samples were analyzed using reflectance spectrophotometry against black and white backgrounds.
Results: Statistical analysis of the translucency parameter (TP) revealed notable differences among the distinct crystallization temperature and mode groups. Rejecting the null hypothesis.
Conclusion: This research concludes that controlled thermal refinement is crucial for modulating the transparency of CAD/CAM pre-crystallized lithium disilicate ceramic.
Keywords
Dental ceramics; CAD/CAM; Lithium disilicate; Translucency; Spectrophotometry
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