IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v18y2021i5p2722-d512980.html
   My bibliography  Save this article

Technical Accuracy of Dental Laboratories in the Quality and Shade Matching of Porcelain Fused to Metal Crowns: An In Vitro Study

Author

Listed:
  • Mohammed. S. Bin-Shuwaish

    (Department of Restorative Dental Sciences, College of Dentistry, King Saud University, 60169, Riyadh 11545, Saudi Arabia)

  • Yasser F. AlFawaz

    (Department of Restorative Dental Sciences, College of Dentistry, King Saud University, 60169, Riyadh 11545, Saudi Arabia)

  • Hamad A. AlGamaiah

    (Department of Restorative Dental Sciences, College of Dentistry, King Saud University, 60169, Riyadh 11545, Saudi Arabia)

  • Abdulaziz S. AlSani

    (Graduate Restorative, School of dentistry, University of Michigan, Ann Arbor, MI 48109, USA)

  • Ibrahim B. Abobakr

    (Department of Restorative Dental Sciences, College of Dentistry, King Saud University, 60169, Riyadh 11545, Saudi Arabia)

  • Khaled M. Alzahrani

    (Department of Prosthetic Dental Sciences, College of Dentistry, Prince Sattam Bin AbdulAziz University, Alkharj 11942, Saudi Arabia)

  • Basil Almutairi

    (Department of Restorative Dental Sciences, College of Dentistry, King Saud University, 60169, Riyadh 11545, Saudi Arabia)

  • Esraa A. Attar

    (Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, King AbdulAziz University, Jeddah 21589, Saudi Arabia)

  • Fahim Vohra

    (Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Research Chair for Bio-logical Research in Dental Health, Riyadh 11545, Saudi Arabia)

  • Tariq Abduljabbar

    (Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Research Chair for Bio-logical Research in Dental Health, Riyadh 11545, Saudi Arabia)

Abstract

Dental laboratories (LABs) are integral to the performance of a dentist in providing successful oral rehabilitation. The aim of this study was to compare the adaptation, contour, contacts, and shade matching of different government and commercial dental LABs in the fabrication of porcelain fused to metal (PFM) crowns. Thirty-two dental LABs were selected to fabricate PFM crowns (one PFM crown each). Marginal adaptation, contour, proximal contacts, and shade matching were evaluated. Evaluation of the crowns’ quality was performed following modified USPHS/FDI criteria. Visual and colorimeter assessments were employed to evaluate shade matching. Differences between groups were examined by Pearson’s Chi-square and Fisher’s exact test. The quality of marginal adaptation of crowns was good in 81.25%, however the quality of contours, contacts, and shade matching was compromised in 43.75%, 59.38%, and 39% of all LABs, respectively. Visual and colorimeter shade matching was acceptable in 62.5% and 80% of LABs in the cervical third and middle third regions of crowns, respectively, however in the incisal third the shade matching was unacceptable in nearly 60% of LABs. Commercial laboratories showed significantly better contours and shade matching, but not marginal adaptation. However, no significant differences were found in comparison of proximal contacts between the groups.

Suggested Citation

  • Mohammed. S. Bin-Shuwaish & Yasser F. AlFawaz & Hamad A. AlGamaiah & Abdulaziz S. AlSani & Ibrahim B. Abobakr & Khaled M. Alzahrani & Basil Almutairi & Esraa A. Attar & Fahim Vohra & Tariq Abduljabbar, 2021. "Technical Accuracy of Dental Laboratories in the Quality and Shade Matching of Porcelain Fused to Metal Crowns: An In Vitro Study," IJERPH, MDPI, vol. 18(5), pages 1-12, March.
  • Handle: RePEc:gam:jijerp:v:18:y:2021:i:5:p:2722-:d:512980
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/18/5/2722/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1660-4601/18/5/2722/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:18:y:2021:i:5:p:2722-:d:512980. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.