Ulf Örtengren
University of Gothenburg
52 Papers
231 Citations
Ulf Örtengren is an academic researcher from University of Gothenburg. The author has contributed to research in topics: Chemistry & Dental composite. The author has an hindex of 22, co-authored 48 publications. Previous affiliations of Ulf Örtengren include Health Science University & University of Tromsø.
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Papers
Water sorption and solubility of dental composites and identification of monomers released in an aqueous environment
TL;DR: Water sorption and solubility of six proprietary composite resin materials were assessed, and monomers eluted from the organic matrix during water storage identified, and triethyleneglycol dimethacrylate was the main monomer released.
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Fracture resistance of monolithic zirconia molar crowns with reduced thickness
Keisuke Nakamura,Akio Harada,Ryoichi Inagaki,Taro Kanno,Yoshimi Niwano,Percy Milleding,Ulf Örtengren +6 more
TL;DR: It is suggested that monolithic zirconia crown with chamfer width of 0.5 mm and occlusal thickness of 0,5 mm can be used in the molar region in terms of fracture resistance.
Influence of pH and storage time on the sorption and solubility behaviour of three composite resin materials.
TL;DR: The sensitivity of the sorption and solubility behaviour to time and pH of the materials tested seems to be related to the hydrophilicity of the matrix and the chemical composition of the filler.
208
The influence of low-temperature degradation and cyclic loading on the fracture resistance of monolithic zirconia molar crowns.
Keisuke Nakamura,Keisuke Nakamura,Akio Harada,Taro Kanno,Ryoichi Inagaki,Yoshimi Niwano,Percy Milleding,Ulf Örtengren +7 more
TL;DR: Even though LTD increased the monoclinic phase, resulting in lower strength, the fracture resistance of the monolithic zirconia crowns was still sufficient to withstand the loading conditions in the molar regions.
93
Effect of cements on fracture resistance of monolithic zirconia crowns.
Keisuke Nakamura,Mathieu Mouhat,John Magnus Nergård,Solveig Jenssen Lægreid,Taro Kanno,Percy Milleding,Ulf Örtengren +6 more
- 26 Jan 2016
TL;DR: The values achieved in the load-to-failure test suggest that monolithic zirconia crowns with a minimal thickness of 0.5 mm may have good resistance against fracture regardless of types of cements.
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