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The International Journal of Prosthodontics
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Int J Prosthodont 31 (2018), Nr. 1     8. Feb. 2018
Int J Prosthodont 31 (2018), Nr. 1  (08.02.2018)

Seite 74-76, doi:10.11607/ijp.5492, PubMed:29166421, Sprache: Englisch


Wear and Fracture Strength of New Ceramic Resins for Chairside Milling
Zierden, Karina / Acar, Johannes / Rehmann, Peter / Wöstmann, Bernd
Purpose: The purpose of this in vitro study was to evaluate wear and fracture strength of chairside-milled new ceramic resins after artificial aging in a chewing simulator. Materials and Methods: Two ceramic resins (Lava Ultimate and Vita Enamic) and two conventional ceramics (IPS Empress CAD and Celtra Duo) were tested. For analysis of wear, baseline and follow-up scans of the specimens were made, the scans were superimposed, and the wear was calculated. To determine fracture strength, the specimens were loaded until they fractured. Results: Lava Ultimate showed the highest wear, caused the lowest wear of the opposing dentition, and showed statistically significantly higher fracture strength than conventional ceramics after cyclic loading. Conclusion: New ceramic resins for chairside milling are a good alternative to conventional ceramics.
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