Mohamed, M., Mohamed, G., Hassan, N. (2019). Comparative Evaluation Of Physical Properties Of Conventionally Constructed Versus CAD/CAM Milled Frameworks For Kennedy Class I Partial Dentures. test, 65(Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), 3663-3670. doi: 10.21608/edj.2019.75998
Maha Nagy Mohamed; Gihan Fekry Mohamed; Nesma Osama Hassan. "Comparative Evaluation Of Physical Properties Of Conventionally Constructed Versus CAD/CAM Milled Frameworks For Kennedy Class I Partial Dentures". test, 65, Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), 2019, 3663-3670. doi: 10.21608/edj.2019.75998
Mohamed, M., Mohamed, G., Hassan, N. (2019). 'Comparative Evaluation Of Physical Properties Of Conventionally Constructed Versus CAD/CAM Milled Frameworks For Kennedy Class I Partial Dentures', test, 65(Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), pp. 3663-3670. doi: 10.21608/edj.2019.75998
Mohamed, M., Mohamed, G., Hassan, N. Comparative Evaluation Of Physical Properties Of Conventionally Constructed Versus CAD/CAM Milled Frameworks For Kennedy Class I Partial Dentures. test, 2019; 65(Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)): 3663-3670. doi: 10.21608/edj.2019.75998

Comparative Evaluation Of Physical Properties Of Conventionally Constructed Versus CAD/CAM Milled Frameworks For Kennedy Class I Partial Dentures

Egyptian Dental Journal
Article 11, Volume 65, Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), October 2019, Pages 3663-3670    PDF (1.24 M)
Document Type: Original Article
DOI: 10.21608/edj.2019.75998
Authors
Maha Nagy Mohamed1; Gihan Fekry Mohamed2; Nesma Osama Hassan3
1Lecturer in Removable Prosthodontics Department Faculty of Dentistry British University In Egypt
2Professor of Removable Prosthodontics Faculty of Dentistry Minia University
3Teaching Assistant in Removable Prosthodontics Department Faculty of Dentisty British University In Egypt
Abstract
Aim: The objective of this study was to compare the physical properties (retention, surface roughness, and wear) of conventionally constructed (pressed) bioHPP removable partial denture (RPD) frameworks versus computer aided designed - computer manufactured (CAD/CAM) RPD frameworks.
Materials and Methods: Over standardized epoxy resin cast models, twenty frameworks were fabricated and divided equally into two groups, group A received ten conventionally fabricated (pressed) bioHPP frameworks and group B received ten CAD/CAM milled frameworks. Each framework was subjected to insertion/ removal cycles by using universal testing machine, (360, 720, 1080, 1440, 2116 cycles) representing time intervals baseline, three, six, nine- and twelve-months respectively, where retention, wear and surface roughness were measured before and after each time interval.
Results: Group B(CAD/CAM) milled RPD frameworks results showed statistically significant difference with higher mean values than group A (pressed) RPD frameworks results in all measured parameters throughout all time intervals.
Conclusion: Within the limitations of this study, it could be concluded that either with milled or pressed way of construction BioHPP remains a reliable material that could be used to construct a highly accurate RPD framework with acceptable physical properties.
Keywords
BioHPP; CAD/CAM; pressed RPD frameworks; Kennedy Class I; retention; Surface roughness; Wear
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