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Journal of Periodontal Research|May 1, 1993
Cell cycle-specific growth inhibitory effect on human gingival fibroblasts of a toxin isolated from the culture medium of Actinobacillus actinomycetemcomitansK Helgeland, O NordbyScandinavian Journal of Dental Research|April 1, 1986
Factors affecting retention of Cu in the human oral cavity after mouth rinsesJ Afseth, K HelgelandScandinavian Journal of Dental Research|May 1, 1977
Evaluation of biologic effects of dental materials using four different cell culture techniquesA Hensten-Pettersen, K HelgelandEuropean Journal of Oral Sciences|April 4, 1998
LPS from Actinobacillus actinomycetemcomitans and production of nitric oxide in murine macrophages J774I J Blix, K HelgelandScandinavian Journal of Dental Research|February 1, 1981
Sensitivity of different human cell line in the biologic evaluation of dental resin-based restorative materialsA Hensten-Pettersen, K HelgelandJournal of Clinical Periodontology|May 15, 2004
Mast cells--a role in periodontal diseases?S Steinsvoll, K Helgeland, K SchenckScandinavian Journal of Dental Research|June 1, 1983
Alkali soluble and alkali insoluble fluoride retention in demineralized enamel in vivoB Ogaard, G Rölla, K HelgelandScandinavian Journal of Dental Research|February 1, 1983
Retention of Cu and Zn in the oral cavity following rinsing with aqueous solutions of copper and zinc saltsJ Afseth, K Helgeland, P BonesvollJournal of Clinical Periodontology|January 1, 1995
In vitro cleavage of serum complement protein C3: a comparison between patients with adult periodontitis and periodontally healthy personsK Monefeldt, K Helgeland, T TollefsenScandinavian Journal of Dental Research|June 1, 1984
Fluoride retention in sound and demineralized enamel in vivo after treatment with a fluoride varnish (Duraphat)B Ogaard, G Rölla, K HelgelandPageof 4