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TLD characteristic of glass, feldspathic and lithium disilicate ceramics
Author(s) -
Isik Esme,
Toktamis Huseyin
Publication year - 2019
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3605
Subject(s) - glass ceramic , lithium disilicate , materials science , ceramic , thermoluminescence , lithium (medication) , dental ceramics , thermoluminescent dosimeter , reproducibility , composite material , analytical chemistry (journal) , luminescence , mineralogy , dosimetry , chemistry , optoelectronics , cubic zirconia , nuclear medicine , dosimeter , medicine , chromatography , endocrinology
Thermoluminescence (TL) emission of dental ceramics could be potentially used for retrospective dosimetry purposes as this allows a quick and reliable dose assessment in case of nuclear accident or bad use of a nuclear attack. This paper reports on the chemical and luminescence characterization of glass, feldspathic and lithium disilicate glass ceramic (LS 2 ). Swedish and Turkish dental ceramics supplied by Vivadent Ivoclar considering: (i) the dose response in the range 10 Gy to 6.9 kGy which displays a linear dose−response at low dose values up to 36 Gy (glass and feldspathic ceramics) and shows sublinear behavior from 12 Gy to 6 kGy (lithium disilicate glass ceramics), (ii) a reproducibility of the TL signal in which the area under the glow curve increased about 25% after 10 cycles for glass and lithium disilicate ceramics and increased about 30% after seven cycles for feldspathic ceramics, (iii) stability of the luminescence emission with the elapsed time and (iv) effect of the heating rate. Glass, lithium disilicate and feldspathic ceramics display a complex UV‐blue glow emission that can be respectively fitted to five and four groups of components assuming first‐order kinetics behavior.