Synchrotron Radiation TXRF Analysis of Titanium Concentrations in Oral Fluids of Subjects with Dental Implants

J. ABRAHAM; H. J. SÁNCHEZ; M.S. GRENÓN; C. A. PÉREZ

Campinas, Brasil

Congreso; RAU 17; 2007

Laboratorio Nacional de Lus sincrotrón

With regards to their biological and physicochemical properties, titanium-basedbiomaterials and other metals have been successfully used in orthopedic, dentaland maxillo-facial surgery mainly as osseous implants.Metal ion release from metallic implants is known to occur, but con°ictingdata have been reported in the literature as well as the levels of trace elementsreleased and their potential consequences. In spite of the rapidly growing use ofsuch implants, there is a poor knowledge of the intake of trace elements in-vivo asa consequence of dental implant materials.With the aim of studying the increasing degree of elemental concentration insome body °uids, concentration of relevant elements in saliva and gingival °uidswere analyzed on samples obtained from two sets of ten patients with and without(control set) dental implants. The analyses were performed by total re°ection ofx-rays technique using synchrotron radiation in the XRF beamline of the LNLS.The measured spectra were analyzed speci¯c programs fro spectrum analysis andthe levels of concentrations were determined using internal standard.A discussion about the results obtained in this work and the possible systemicimplications is presented.