Metallic pigmentation of human teeth and gingiva: morphological and immunological aspects

0089216 - MBÚ 2008 RIV SIGLE JP eng J - Journal Article
Venclíková, Z. - Benada, Oldřich - Bártová, J. - Joska, L. - Mrklas, L.
Metallic pigmentation of human teeth and gingiva: morphological and immunological aspects.
[Metalické pigmentace lidských zubů a dásní: morfologické a imunologické aspekty.]
Dental Materials Journal. Roč. 26, č. 1 (2007), s. 96-104. ISSN 0287-4547
R&D Projects: GA MZd NR9124
Institutional research plan: CEZ:AV0Z50200510
Keywords : metallic pigmentation * edx microanalysis * lymphocyte proliferation
Subject RIV: EE - Microbiology, Virology
Impact factor: 2.219, year: 2005

The composition of metallic pigmentations in gingiva and dental roots was determined by means of transmission electron microscopy with energy dispersive x-ray microanalysis. The systemic immune response to the metals found in the oral cavity was evaluated in 10 patient’s by using a modified Lymphocyte proliferation test. Immunological results were compared with a group of five controls without metallic materials and pigmentation. Dense particles of various shapes and sizes, as well as of diverse extracellular and intracellular localization patterns, were detected in the pigmented lamina propria gingivae. Metallic deposits consisted predominantly of silver accompanied by selenium or sufur or both. Besides, Ag, Au, Cr, Ni, Fc, Hg, Cu, and Ti were identified in dentinal tubules of teeth reconstructed with dental alloys. Nine patients with metallic pigmentations had a positive lymphocyte proliferative response to one or more metals present in their own metal reconstructions

Složení metalických inkluzí v gingivě bylo určeno pomocí energiově disperzní x-ray mikroanalýzy. Imunologická odpověď na kovy nalezené ve ústní dutině 10 pacientů byla sledována modifikovaným „Lymfocyte proliferation“ testem. Výsledky studie naznačují, že indikované stomatologické slitiny mohou být významným rizikem pro imunologicky vnímavé pacienty v důsledku jejich korozních procesů
Permanent Link: http://hdl.handle.net/11104/0150495