Comparison between the Effect Of 2mm intrapulpal Preparation Extension & 6mm intrapulpal Preparation Extension On Fracture Resistance Of Endo-crowns Fabricated With Two Ceramic Materials Restoring Premolar Teeth. (In Vitro Study)
Mahgoub, K., Morsi, T., Abofadle, A., Mina, R. (2023). Comparison between the Effect Of 2mm intrapulpal Preparation Extension & 6mm intrapulpal Preparation Extension On Fracture Resistance Of Endo-crowns Fabricated With Two Ceramic Materials Restoring Premolar Teeth. (In Vitro Study). EKB Journal Management System, 69(4), 2855-2860. doi: 10.21608/edj.2023.197856.2471
Khaled Yehia Mahgoub; Tarek Salah el din Morsi; Ahmed Khaled Abofadle; Rafik K.G Mina. "Comparison between the Effect Of 2mm intrapulpal Preparation Extension & 6mm intrapulpal Preparation Extension On Fracture Resistance Of Endo-crowns Fabricated With Two Ceramic Materials Restoring Premolar Teeth. (In Vitro Study)". EKB Journal Management System, 69, 4, 2023, 2855-2860. doi: 10.21608/edj.2023.197856.2471
Mahgoub, K., Morsi, T., Abofadle, A., Mina, R. (2023). 'Comparison between the Effect Of 2mm intrapulpal Preparation Extension & 6mm intrapulpal Preparation Extension On Fracture Resistance Of Endo-crowns Fabricated With Two Ceramic Materials Restoring Premolar Teeth. (In Vitro Study)', EKB Journal Management System, 69(4), pp. 2855-2860. doi: 10.21608/edj.2023.197856.2471
Mahgoub, K., Morsi, T., Abofadle, A., Mina, R. Comparison between the Effect Of 2mm intrapulpal Preparation Extension & 6mm intrapulpal Preparation Extension On Fracture Resistance Of Endo-crowns Fabricated With Two Ceramic Materials Restoring Premolar Teeth. (In Vitro Study). EKB Journal Management System, 2023; 69(4): 2855-2860. doi: 10.21608/edj.2023.197856.2471

Comparison between the Effect Of 2mm intrapulpal Preparation Extension & 6mm intrapulpal Preparation Extension On Fracture Resistance Of Endo-crowns Fabricated With Two Ceramic Materials Restoring Premolar Teeth. (In Vitro Study)

Egyptian Dental Journal
Volume 69, Issue 4, October 2023, Page 2855-2860  XML PDF (491.3 K)
Document Type: Original Article
DOI: 10.21608/edj.2023.197856.2471
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Authors
Khaled Yehia Mahgoub email orcid 1; Tarek Salah el din Morsiorcid 2; Ahmed Khaled Abofadleorcid 3; Rafik K.G Minaorcid 4
1Ph.D. Candidate, Armed Forces
2Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Ain Shams University
3Associate Professor, Fixed prosthodontics, Dentistry, Ain shams University, Cairo, Egypt
4Assistant Professor, Egyptian Armed Forces
Abstract
Purpose: This research was conducted to evaluate the effect of two intrapulpal depth with two different materials on fracture resistance of endo-crowns restoring premolars.
Materials &Methods: 28 sound premolars were assigned to two groups (n=14), Group A (2 mm extension into the pulp chamber), Group B (6 mm extension intrapulpally).then each group is subdivided into two subgroups (n=7) according to the type of the material used Subgroup I(Enamic), Subgroup II(Suprinity). All premolars were decoronated to be 3 mm above the CEJ Proximally. Samples were split into two groups regarding the type of preparation done.After cementation, fracture resistance test was performed. Data was collected and statistically analyzed.
Results: There was a statistically significant difference between samples regarding different depths of preparation extension were the highest value of fracture resistance was in samples with 6 mm extension depth (1617.43 N ) as well as samples regarding the type of the material, where all samples of Vita Suprinity showed higher values of fracture resistance in each depth.
Conclusion: It could be concluded that root canal treated premolars can be restored with endocrowns, moreover, the increase of the preparation depth of the endocrowns are less prone to fracture
Keywords
Endocrowns; Premolars; Suprinity; Enamic
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