Influence of cementation on in vitro performance, marginal adaptation and fracture resistance of CAD/CAM-fabricated ZLS molar crowns

Dental Materials : Official Publication of the Academy of Dental Materials
Verena PreisMartin Rosentritt

Abstract

This study investigated the influence of conventional cementation, self-adhesive cementation, and adhesive bonding on the in vitro performance, fracture resistance, and marginal adaptation of zirconia-reinforced lithium silicate (ZLS) crowns. Human molar teeth (n=40) were prepared and full-contour crowns of a ZLS ceramic (Celtra Duo, DeguDent, G, n=32) and a lithium disilicate ceramic (LDS; IPS e.max CAD, Ivoclar-Vivadent, FL, n=8) were fabricated and glazed. Four groups of ZLS crowns were defined (n=8/group) and cemented with different glass-ionomer cements, resin, and resin-modified self-adhesive luting materials. The LDS crowns served as reference group with adhesive bonding. A combined thermal cycling and mechanical loading (TCML: 3000×5°C/3000×55°C; 1.2×10(6) cycles à 50N) with human antagonists was performed in a chewing simulator. Fracture force of surviving crowns was determined. Marginal adaptation at the cement/tooth and cement/crown interface was investigated by scanning electron microscopy before and after TCML, and the share of perfect margins was determined. Data were statistically analyzed (one-way ANOVA; post hoc Bonferroni, α=0.05). One crown of the adhesive group failed during TCML (879,000 cycles=3.7 years). ...Continue Reading

References

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Citations

Oct 23, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·C KerezoudiG Palaghias
Jul 3, 2016·Clinical Oral Investigations·Martin RosentrittVerena Preis
May 30, 2017·The Journal of Prosthetic Dentistry·Alexis GoujatBrigitte Grosgogeat
Jan 24, 2017·Journal of Prosthodontic Research·Franz Sebastian SchwindlingMarc Schmitter
Mar 7, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Moritz ZimmermannDennis Fasbinder
Dec 13, 2019·European Journal of Oral Sciences·Bahram RanjkeshHenrik Løvschall
Aug 25, 2018·The Journal of Advanced Prosthodontics·Verena PreisMartin Rosentritt
Jul 1, 2020·The Journal of Advanced Prosthodontics·Funda OzenOzge Parlar Oz
Oct 28, 2020·International Journal of Implant Dentistry·Elif Yeğin, Mustafa Hayati Atala
Apr 30, 2019·The Journal of the American Dental Association·Nathaniel C LawsonUNKNOWN National Dental Practice-Based Research Network Collaborative Group
Jul 23, 2016·The Journal of Contemporary Dental Practice·Yasser Alfawaz
Apr 19, 2021·The Journal of Prosthetic Dentistry·Aikaterini MikeliMichael Raedel
Apr 18, 2021·Journal of Dentistry·Fernando ZaroneRoberto Sorrentino

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