LOGIN
 
Share Page:
Back

Volume 16 , Issue 5
September/October 2003

Pages 538–542


The Influence of Different Cements on the Fracture Resistance and Marginal Adaptation of All-Ceramic and Fiber-Reinforced Crowns

Michael Behr, DMD, PhD/Martin Rosentritt, MS/Martin Mangelkramer, DMD/Gerhard Handel, DMD, PhD


PMID: 14651242

Purpose: This in vitro study investigated the marginal adaptation and fracture resistance of heat-pressed glass-ceramic and fiber-reinforced composite molar crowns luted with resin, resin-modified glass-ionomer, or zinc-oxide-eugenol–free cements. Materials and Methods: A total of 24 heat-pressed all-ceramic and 24 glass fiber–reinforced composite crowns were constructed and cemented using the above-mentioned luting agents (eight crowns per cement). The restorations were thermocycled and mechanically stressed, and fracture resistance was determined. Marginal adaptation was evaluated before and after stress application using semiquantitative analysis in a scanning electron microscope. Results: All-ceramic and fiber-reinforced composite crowns reached the highest fracture resistance after stress application in combination with the resin cement. When luted with resin-modified glass-ionomer or zinc-oxide-eugenol–free cements, the fracture resistance of all-ceramics decreased significantly, while the fiber-reinforced composite crowns maintained their fracture resistance level; the lowest values were found for zinc-oxideeugenol –free cements. The marginal adaptation remained unchanged after stress for allceramics and fiber-reinforced composite restorations if they were luted with resin cements. Luting with resin-modified glass-ionomers significantly deteriorated the marginal adaptation after stress application, with the exception of the crown-cement interface of all-ceramics. Conclusion: The highest fracture resistance and marginal adaptation were found for all-ceramic and glass fiber–reinforced composite molar crowns if they were luted with resin cement. Int J Prosthodont 2003;16:538–542.


Full Text PDF File | Order Article

 

 
Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files. This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site to get your copy of Adobe Acrobat Reader.

 

© 2017 Quintessence Publishing Co, Inc

IJP Home
Current Issue
Ahead of Print
Archive
Author Guidelines
About
Accepted Manuscripts
Submission Form
Submit
Reprints
Permission
Advertising
Quintessence Home
Terms of Use
Privacy Policy
About Us
Contact Us
Help