• Home
  • Browse
    • Current Issue
    • By Issue
    • By Author
    • By Subject
    • Author Index
    • Keyword Index
  • Journal Info
    • About Journal
    • Aims and Scope
    • Editorial Board
    • Publication Ethics
    • Peer Review Process
  • Guide for Authors
  • Submit Manuscript
  • Reviewers
  • Contact Us
 
  • Login
  • Register
Home Articles List Article Information
  • Save Records
  • |
  • Printable Version
  • |
  • Recommend
  • |
  • How to cite Export to
    RIS EndNote BibTeX APA MLA Harvard Vancouver
  • |
  • Share Share
    CiteULike Mendeley Facebook Google LinkedIn Twitter
Al-Azhar Dental Journal for Girls
arrow Articles in Press
arrow Current Issue
Journal Archive
Volume Volume 7 (2020)
Volume Volume 6 (2019)
Issue Issue 4
Issue Issue 3
Issue Issue 2
Issue Issue 1
Volume Volume 5 (2018)
Volume Volume 4 (2017)
Volume Volume 3 (2016)
Abdel Gawad, A., El-yassaky, M., Fathi, A., Hossam El Din, M. (2019). Micro- Computed Tomographic Evaluation of Marginal Fit of Different Monolithic all Ceramic Crowns Fabricated Using Two CAD/CAM Systems.. Al-Azhar Dental Journal for Girls, 6(2), 195-201. doi: 10.21608/adjg.2019.42141
Asmaa Abdel Gawad; Mohamed El-yassaky; Atef Fathi; Mona Hossam El Din. "Micro- Computed Tomographic Evaluation of Marginal Fit of Different Monolithic all Ceramic Crowns Fabricated Using Two CAD/CAM Systems.". Al-Azhar Dental Journal for Girls, 6, 2, 2019, 195-201. doi: 10.21608/adjg.2019.42141
Abdel Gawad, A., El-yassaky, M., Fathi, A., Hossam El Din, M. (2019). 'Micro- Computed Tomographic Evaluation of Marginal Fit of Different Monolithic all Ceramic Crowns Fabricated Using Two CAD/CAM Systems.', Al-Azhar Dental Journal for Girls, 6(2), pp. 195-201. doi: 10.21608/adjg.2019.42141
Abdel Gawad, A., El-yassaky, M., Fathi, A., Hossam El Din, M. Micro- Computed Tomographic Evaluation of Marginal Fit of Different Monolithic all Ceramic Crowns Fabricated Using Two CAD/CAM Systems.. Al-Azhar Dental Journal for Girls, 2019; 6(2): 195-201. doi: 10.21608/adjg.2019.42141

Micro- Computed Tomographic Evaluation of Marginal Fit of Different Monolithic all Ceramic Crowns Fabricated Using Two CAD/CAM Systems.

Article 11, Volume 6, Issue 2, Spring 2019, Page 195-201  XML PDF (351.72 K)
Document Type: Original Article
DOI: 10.21608/adjg.2019.42141
Authors
Asmaa Abdel Gawad1; Mohamed El-yassaky2; Atef Fathi3; Mona Hossam El Din4
1Assistant Lecturer of Crowns and Bridges Department, Faculty of Dental Medicine for Girls, AL-Azhar University
2Professor of Operative Dentistry, and Dean of Faculty of Dental Medicine Sinai, University
3Professor and Head of Crowns and Bridges Department, Faculty of Dental Medicine for Girls, AL-Azhar University
4Professor of Crowns and Bridges Department, Faculty of Dental Medicine for Girls, AL-Azhar University
Abstract
the objective of the present in vitro study was to evaluate the effect of two different CAD/CAM systems on the marginal fit of three commercially available dental ceramics using micro-computed tomography. Materials and Methods: one human natural premolar was selected, received a standardized all ceramic preparation and duplicated using two types of die materials. PMMA dies were used for construction of E.max CAD and Vita Enamic monolithic crowns while zirconia dies were used for zirconia crowns. A total of thirty monolithic all-ceramic crowns (N=30) were constructed on the fabricated working dies. These were equally divided into 2 groups (n=15) according to the CAD/CAM system used as follows: group (I): Everest system and group (II): Zircon Zhan system. Each group was further subdivided into 3 subgroups (n=5) according to the ceramic material used into subgroup (E): E.max CAD glass ceramic, subgroup (Z): ice prettau zirconia and subgroup (V): Vita Enamic hybrid ceramic. Each sample was scanned for fit analysis using a quantitative micro-computed tomography scanner then were analyzed. Results: Everest CAD/CAM system showed statistically significantly lower mean marginal gap distance than ZirconZahn. Either with Everest or ZirconZahn; E.max CAD showed the statistically significantly highest mean vertical marginal gap distance followed by Zirconia while Vita Enamic showed the statistically significantly lowest mean vertical marginal gap distance.
Conclusions: Micro-CT technology presents a reliable tool for evaluation of the dental restorations fit. Also, superior marginal fit is achievable with monolithic CAD/CAM hybrid ceramic compared to both zirconia based and glass ceramics
Keywords
Marginal fit; micro CT; Hybrid ceramics; monolithic crowns; E.max CAD
Main Subjects
Crown and Bridge
Statistics
Article View: 171
PDF Download: 432
Home | Glossary | News | Aims and Scope | Sitemap
Top Top

Journal Management System. Designed by NotionWave.