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Alexandria Dental Journal
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Volume Volume 49 (2024)
Issue Issue 3
A (Oral and maxillofacial surgery, oral medicine, periodontology, oral radiology, oral pathology, oral biology)
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B (Endodontics, Prosthodontics, Fixed prosthodontics, Conservative dentistry, Dental Biomaterials)
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Issue Issue 2
A (Oral and maxillofacial surgery, oral medicine, periodontology, oral radiology, oral pathology, oral biology)
Issue Issue 2
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Issue Issue 2
C (Pediatric dentistry, Dental public health, Orthodontics)
Issue Issue 1
A (Oral and maxillofacial surgery, oral medicine, periodontology, oral radiology, oral pathology, oral biology)
Issue Issue 1
B (Endodontics, Prosthodontics, Fixed prosthodontics, Conservative dentistry, Dental Biomaterials)
Issue Issue 1
C (Pediatric dentistry, Dental public health, Orthodontics)
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Marey, M., Hussein, S., Aboushelib, M. (2024). FIT ACCURACY OF OPEN VERSUS CLOSED CAD/CAM SYSTEMS USING A SECTIONAL METHOD. Alexandria Dental Journal, 49(3), 100-105. doi: 10.21608/adjalexu.2023.206854.1369
Mohamed Badr Marey; Sanaa Hussein; Moustafa Nabil Aboushelib. "FIT ACCURACY OF OPEN VERSUS CLOSED CAD/CAM SYSTEMS USING A SECTIONAL METHOD". Alexandria Dental Journal, 49, 3, 2024, 100-105. doi: 10.21608/adjalexu.2023.206854.1369
Marey, M., Hussein, S., Aboushelib, M. (2024). 'FIT ACCURACY OF OPEN VERSUS CLOSED CAD/CAM SYSTEMS USING A SECTIONAL METHOD', Alexandria Dental Journal, 49(3), pp. 100-105. doi: 10.21608/adjalexu.2023.206854.1369
Marey, M., Hussein, S., Aboushelib, M. FIT ACCURACY OF OPEN VERSUS CLOSED CAD/CAM SYSTEMS USING A SECTIONAL METHOD. Alexandria Dental Journal, 2024; 49(3): 100-105. doi: 10.21608/adjalexu.2023.206854.1369

FIT ACCURACY OF OPEN VERSUS CLOSED CAD/CAM SYSTEMS USING A SECTIONAL METHOD

Article 1, Volume 49, Issue 3, December 2024, Page 100-105  XML PDF (252.21 K)
Document Type: Original Article
DOI: 10.21608/adjalexu.2023.206854.1369
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Authors
Mohamed Badr Marey email 1; Sanaa Husseinorcid 2; Moustafa Nabil Aboushelib3
1Department of Fixed Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
2Professor, Department of Conservative Dentistry, Faculty of Dentistry, Alexandria University.
3Department of Dental Biomaterial, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Abstract
Introduction: Marginal fit is critical for the success of dental restorations. Zirconia full coverage restorations can be fabricated either chair-side or in a milling center.
Objective: To evaluate the fit accuracy of all ceramic restorations fabricated by two different CAD/CAM systems using a sectional method.
Material and methods: A lower first molar was prepared for a full coverage restoration, it was laser scanned (Ceramill map 400) and 24 replicas were milled using acrylic CAD/CAM block (Ceramill TEMP). Half of the dies were scanned using a closed system (CEREC inLab MC X5) while the other half used an open system (Ceramill motion 2). Zirconia restorations (Monolithic Katana zirconia) were milled from each system. Sectional method where each restoration was cut into thin sections (Buehler Isomet 4000 Linear Precision Saw) after cementation by self-adhesive resin cement (RelyX™ Unicem). A stereomicroscope was used for measurement. (n=24 α= 0.05).
Results: There was a significant difference (t=2.387, P<0.030) as the open system was better than the closed system at the axial sites.
Keywords
CAD/CAM; Open system; Closed system; Monolithic zirconia; Marginal adaptation
Main Subjects
Fixed prosthodontics
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