JIOH on LinkedIn JIOH on Facebook
  • Users Online: 579
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
Year : 2022  |  Volume : 14  |  Issue : 4  |  Page : 382-385

Effect of cement-space thickness on the marginal fitness of all zirconium oxide crowns—An in vitro study

Restorative and Esthetic Dentistry Department, College of Dentistry, University of Basrah, Basrah, Iraq

Correspondence Address:
Dr. Farah A Taha
Restorative and Esthetic Dentistry Department, College of Dentistry, University of Basrah, Basrah
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JIOH.JIOH_275_21

Rights and Permissions

Aim: To estimate the influence of cement-space thickness on the vertical marginal fitness of full zirconia crowns. Materials and Methods: A total of 24 newly extracted sound human maxillary first premolars were mounted and thereafter prepared to receive fully contoured zirconia crowns. Teeth were scanned via Chairside Economical Restoration of Esthetic Ceramic (CEREC) digital intraoral scanner (Omnicam, Sirona, Germany). Afterward, teeth were randomly assorted into three groups (depending on the cement-space thickness parameter of their corresponding designed crowns): group A = 80 μm, group B = 100 μm, and group C = 120 μm. Zirconia crowns were assembled using In-Lab MCX5 milling machine (Sirona). The cementation procedure was undergone using RelyX Unicem self-adhesive luting cement (3M, ESPE, Germany). The marginal discrepancy was measured at 16 points/tooth utilizing a digital microscope (85× magnification). Data were statistically analyzed utilizing one-way analysis of variance (ANOVA) and Tukey honestly significant difference (HSD) test (P = 0.05). Results: The analysis revealed that the cement-space thickness parameter had a highly significant effect on the marginal gap values in all groups. The lowest mean of marginal gap values was noted for group C (120 μm). Conclusion: Increasing cement-space thickness from 80 μm to 100 and 120 μm might be favorable for a better adaptation of monolithic zirconia crowns.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded35    
    Comments [Add]    

Recommend this journal