title: [The evaluation of mineral crystallinity of mandibular bone tissue using electron paramagnetic resonance (EPR) in patients suffering from renal osteodystrophy].
abstract: Mineral crystallinity of bone tissue is subject to changes during one's development, as well as in many systemic diseases, especially renal osteodystrophy. The aim of the study was qualitative evaluation of the mandibular bone tissue in patients suffering from renal osteodytrophy, treated with renal-replacement therapy: hemo-dialysis or allogeneic kidney transplantation. The mineral crystallinity coefficient was evaluated using electron paramagnetic resonance (EPR) based on the observation that ionizing radiation induces paramagnetic centers in hydroxyapatites. The concentration of these centers was used to establish an indicator of crystallinity rate which is a measure of the crystallinity of tissue mineral. On the basis of these results, it is possible to widen the indications for implantological treatment in specific clinical cases.
authors.affiliation: Zakład Chirurgii Stomatologicznej ISAM w Warszawie. awojt@kcs.amwaw.edu.pl
authors.forename: Andrzej
authors.initials: A
authors.lastname: Wojtowicz
authors.forename: Maciej
authors.initials: M
authors.lastname: Dijakiewicz
authors.forename: Barbara
authors.initials: B
authors.lastname: Wandzel
authors.forename: Piotr
authors.initials: P
authors.lastname: Wesołowski
authors.forename: Bolesław
authors.initials: B
authors.lastname: Rutkowski
authors.forename: Piotr
authors.initials: P
authors.lastname: Fiedor
authors.forename: Wacław
authors.initials: W
authors.lastname: Stachowicz
authors.forename: Kazimierz
authors.initials: K
authors.lastname: Ostrowski
mesh_terms: D000328:Adult; D000368:Aged; D015519:Bone Density; D002113:Calcification, Physiologic; D002118:Calcium / Q000378:metabolism; D012080:Chronic Kidney Disease-Mineral and Bone Disorder / Q000209:etiology / Q000378:metabolism*; D003460:Crystallization; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*; D005260:Female; D006801:Humans; D006882:Hydroxyapatites / Q000737:chemistry / Q000378:metabolism; D007676:Kidney Failure, Chronic / Q000150:complications / Q000378:metabolism / Q000628:therapy; D016030:Kidney Transplantation / Q000009:adverse effects; D008297:Male; D008334:Mandible / Q000737:chemistry / Q000378:metabolism*; D008875:Middle Aged; D008903:Minerals / Q000737:chemistry / Q000378:metabolism*; D006435:Renal Dialysis / Q000009:adverse effects
chemical_list: D006882:Hydroxyapatites; D008903:Minerals; D002118:Calcium