Ulf Thore Ørtengren
Stillingsbeskrivelse
Responsible for education and research concerning biomaterials used in dentistry and the preclinical education.
Head for the reseach group "Biomaterials used in dentistry and medicine"
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Publikasjoner utenom Cristin
Milleding P, Örtengren U, Karlsson S. Ceramic inlay systems: some clinical aspects. J Oral Rehabil 1995; 22; 571-580.
Örtengren U, Andreasson H. Avvikande reaktioner mot dentala polymera material. Tandläkar Tidningen. 1997; 9; 39-42
Örtengren U. Dagens medicin. 1997; 2; 14.
Milleding P, Ahlgren F, Wennerberg A, Örtengren U, Karlsson S.
Microhardness and surface topography of a composite resin cement after water storage. Int J Prosthodont 1998; 1: 21-26.
Erneklint C, Ödman P, Örtengren U, Rasmusson L.
Tolerance test of five different types of crowns on single-tooth implants.
Int J Prosthodont 1998; 11: 233-239
Örtengren U, Andreasson H, Karlsson S, Meding B, Barregård L. Prevalence of self reported skin symptoms among Swedish dentists. Eur J Oral Sci 1999. 107; 496-505.
Örtengren U, Elgh U, Spasenoska V.Milleding P, Haasum J, Karlsson S.
Water sorption and flexural properties of a polymer resin cement after water storage. Int J Prosthodont 2000; 13: 141-147
Örtengren U. On composite resin materials. Degradation, erosion and possible adverse effects in dentists.Thesis.Swedish Dental Journal Supplement 141, 2000.
Örtendahl T, Örtengren U. A new orthodontic bonding adhesive. J of Clin Orthodont 2000; 1: 50-54
Wallenhammar L-M, Örtengren U, Andreasson H, Barregård L, Björkner B, Karlsson S, Wrangsjö K, Meding B. Contact allergy and hand eczema in Swedish dentists. Contact Dermatitis 2000; 43: 192-199
Hagberg S, Ljungqvist G, Barregård L, Andreasson H, Örtengren U, Karlsson S. Exponering i tandvårdsmiljö för flyktiga akrylater. Rapport från Yrkes och Miljömedicin nr 81. Nov 2000. ISBN 91-7876-080-1, ISSN 0282-2199.
Örtengren U, Wellendorf H, Karlsson S, Ruyter IE. Water sorption and solubility of dental composites and identification of monomers released in an aqueous environment. J Oral Rehabil 2001; 28: 1106-1115
Örtengren U, Andersson F, Elgh U, Terselius B, Karlsson S. Influence of pH and storage time on the sorption and solubility behaviour of three composite resin materials. J Dent 2001; 29: 35-41.
Wrangsjö, K, Örtengren U, Wallenhammar L-M, Barregård L, Andreasson H, Björkner B, Karlsson S, Meding B. Protective gloves in Swedish dentistry - use and side effects.
British J Derm. 2001; 145: 32-37.
Gewalli F, Guimaraes-Ferreira JP, Maltese G, Örtengren U, Lauritzen C. Expander elements in craniofacial surgery.: An experimental study. Scand J Plast Reconstr Hand Surg. 2001; 35(2): 149-156.
Andreasson H, Örtengren U, Barregård L, Karlsson S. Work-related skin and airway symptoms among Swedish dentists rarely cause sick-leave or change of professional career. Acta Odontol Scand. 2001; 59: 267-272
Hallgren C, Sawase T, Örtengren U, Wennerberg A. Histomorphometric and mechanical evaluation of the bone-tissue response to implants prepared with different orientation of surface topography. Clin Impalnt Dent Relat Res. 2001; 3(4): 194-203.
Guimaraes-Ferreira JP, Gewalli F, Örtengren U, Owman-Moll P, Freide H, Lauritzen C. Strip cranioectomy and expander elements for treatment of sagital synostosis. J Craniofac Surg. 2001
Örtengren U, Maillard B. Silanisering av protetiska konstruktioner. Kunskapsdokument från KDM. Socialstyrelsen 2001. 2001-123-75. ISBN 91-7201-599-3
Örtengren U, Langer S, Göransson A, Lundgren T. Influence of pH and time on release of organic substances from a dental composite resin. A fluorescence spectrophotometry and gas chromatography/mass spectrometry analysis. Eur J Oral Sci 2004;6(112); 530-37
Arvidsson A, Örtengren U, Wennerberg A. Influence of chemo-mechanical caries removal on the surface topography of dental composite resin and glass-ionomer materials. An in vitro study. Acta Odontol Scand. 2004;62: 137-142.
Erneklint C, Odman P, Ortengren U, Karlsson S. An in vitro load evaluation of a conical implant system with 2 abutment designs and 3 different retaining-screw alloys. Int J Oral Maxillofac Implants. 2006 Sep-Oct;21(5):733-7.
Schedle A, Örtengren U, Eidler N, Gabauer M, Hensten A. Do adverse effects of dental materials exist? What are the consequences, and how can they be diagnosed and treated? Clin Oral Implants Res. 2007 Jun;18 Suppl 3:232-56.
Sahlin-Platt A, Örtengren U, Mladenovic Z, Ransjö M. Effects of Dyract AP and released ionic products on periodontal ligament cells and bone marrow cultures. Dent Mater. 2008 Dec;24(12):1623-30
Edblad T, Hoffman M, Hakeberg M, Örtengren U, Milleding P, Wennerberg A. Micro-topography of dental enamel and root cementum. Swed Dent J.2009;33(1):41-8.
Nakamura K, Kanno T, Milleding P, Örtengren U. Zirconia as a Dental Implant Abutment Material: A Systematic Review. Int J Prosth. 2010:23(4); 299-309
Nakamura K, Adolfsson E, Milleding P, Kanno T, Örtengren U. Influence of grain size and veneer firing process on the flexural strength of zirconia ceramics. Eur J Oral Sci. 2012:120; 249-254.
Cornelio Belloti R, Haasum J, Gedde U, Kopperud Molvig H, Örtengren U. Influence of mould materials on the degree of conversion on the surfaces of composite resin based materials. Brazil J Dent Res 2012:11(4);469-474
Cormelio BR. Wikant A, Mjøsund H, Kopperud HM, Haasum J, Gedde U, Örtengren U. The influence of bis-EMA on the degree of conversion and water sorption and solubility of dental composite materials. Acta Odontol. 2014 : 72.(6); 440-44
Nakamura K, Harada A, Inagaki R, Kanna T, Nowano Y, Milleding P, Örtengren U. Fracture resistance of monolithic zirconia molar crowns with reduced thickness. Acta Odontol. 2015 Nov;73(8):602-8
HaradaA, NakamuraK, KannoT, InagakiR, ÖrtengrenU, NiwanoY, SasakiK, EgusaH. Fracture resistance of CAD/CAM-generated composite resin-based molar crowns. Eur J Oral Sci. 2015. Apr; 123(2):122-9
Nakamura, K., Harada, A., Kanno, T., Inagaki, R., Niwano, Y., Milleding, P., Örtengren, U. (2015) The influence of low-temperature degradation and cyclic loading on the fracture resistance of monolithic zirconia molar crowns. Submitted for publication. J Mech Behav Biomed Mater. 2015 Mar 18;47:49-56
Nakamura K, Katsuda Y, Ankyu S, Harada A, Tenkumo T, Kanno T, Niwano Y, Egusa H, Milleding P, Örtengren U. Cutting efficiency of diamond burs operated with electric high-speed dental handpiece on zirconia. Eur J Oral Sci. 2015 Aug 28. doi: 10.1111/eos.12211.
Nakamura, K., Harada, A., Ono, M., Shibasaki, H., Kanno, T., Niwano, Y., Adolfsson, E., Milleding, P., Örtengren, U. (2015) The effects of low-temperature degradation on the mechanical and microstructural properties of tooth-colored 3Y-TZP ceramics. J Mech Behav Biomed Mater. 2016 Jan;53:301-11. doi: 10.1016/j.jmbbm.2015.08.031. Epub 2015 Sep 1
Nakamura, K., Mohat, M., Nergård J.M., Lægreid, S.J., Kanno, T., Milleding, P., Örtengren, U. (2015) Effect of cements on fracture resistance of monolithic zirconia crowns. Accepted ACTA BIOMATERIALIA ODONTOLOGICA SCANDINAVICA dec 2015.
Papers in other journals
Örtengren U, Andreasson H. Avvikande reaktioner mot dentala polymera material. Tandläkar-Tidningen. 1997; 9; 39-42
Örtengren U. Dagens medicin. 1997; 2; 14.
Örtengren U, Maillard B. Silanisering av protetiska konstruktioner. Kunskapsdokument från KDM. Socialstyrelsen 2001. 2001-123-75. ISBN 91-7201-599-3
Barregård L, Örtengren U. Dentala material ur arbetsmiljösynpunkt. Kunskapsdokument från KDM. Socialstyrelsen 2007. 2007-123-91.
Örtengren U. Skin symptoms among dentists due to occupational activity. J Dent Outlook 2007: 110(2). (In japanese)
Örtengren U. Komposit och ljushärdning. Odontologi 2008. 93-99. Munksgaards förlag. Köpenhamn, Danmark.
Örtengren U. Silanisering av protetiska kontruktioner. Kunskapsdokument från KDM. Socialstyrelsen 2008. 2008-123-14.
Örtengren U, Eriksen H, Bergdahl J. Polar Bite. PAN European Networks-Science and Tehcnology. 2012; March (02): 144-145.
Örtengren U, Eriksen H, Bergdahl J. Dental Education in Northern Norway. Public Service Review. 2012; (23): 330-331.
Örtengren U, Eriksen H, Bergdahl J. Development in dental and research. Public Service Review. 2012; (24):
Örtengren U. Delay the decay. PAN european network. Science and Technology. 2012 (4)
CEN/TC 55 WG 8 under ledning av Örtengren U. CEN/TR 16386 Dentistry – Guidelines for handling methacrylate-based materials in the dental laboratory. 2013
Forskningsinteresser
Main interest: polymer resin based materials, polymerization, degradation and erosion processes, analysis of substances eluted from polymer material (e.g. composites) under different conditions.
In addition research projects concerning working environment and especially the issue concerning allergy to dental materials among dental personnel and dental technicians but also to some extent in patients are focused on.
Supervisor of 2 PhD projects. One with focus on composite resin materials and one in yttrium stavbilized zirkoniadioxide.