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Titolo:
Temperature dependence of the electrical resistance of sound and carious teeth
Autore:
Huysmans, MCDNJM; Longbottom, C; Christie, AM; Bruce, PG; Shellis, RP;
Indirizzi:
Univ Groningen, Dept Dent, NL-9713 AV Groningen, Netherlands Univ Groningen Groningen Netherlands NL-9713 AV V Groningen, Netherlands Univ Dundee, Dept Dent Hlth, Dundee DD1 4HN, Scotland Univ Dundee DundeeScotland DD1 4HN Dent Hlth, Dundee DD1 4HN, Scotland Univ St Andrews, Sch Chem, St Andrews KY16 9AJ, Fife, Scotland Univ St Andrews St Andrews Fife Scotland KY16 9AJ Y16 9AJ, Fife, Scotland Univ Bristol, Dent Hosp, Bristol BS8 1TH, Avon, England Univ Bristol Bristol Avon England BS8 1TH Bristol BS8 1TH, Avon, England
Titolo Testata:
JOURNAL OF DENTAL RESEARCH
fascicolo: 7, volume: 79, anno: 2000,
pagine: 1464 - 1468
SICI:
0022-0345(200007)79:7<1464:TDOTER>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
IMPEDANCE SPECTROSCOPY; ENAMEL MEMBRANES; OCCLUSAL CARIES; BOVINE ENAMEL; DIAGNOSIS; LESIONS;
Keywords:
dental caries; electrical impedance spectroscopy; diagnostic systems;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Huysmans, MCDNJM Univ Groningen, Dept Dent, A Deusinglaan 1, NL-9713 AV Groningen, Netherlands Univ Groningen A Deusinglaan 1 Groningen Netherlands NL-9713 AV
Citazione:
M.C.D.N.J.M. Huysmans et al., "Temperature dependence of the electrical resistance of sound and carious teeth", J DENT RES, 79(7), 2000, pp. 1464-1468

Abstract

Temperature variations are expected to influence measurement error in electrical resistance of teeth. It was the aim of this study to determine the changes in electrical behavior of extracted human teeth due to temperature changes in the range of room temperature to intra-oral temperature. Nine extracted teeth were selected, and the occlusal or an approximal surface was chosen for measurement. Carious involvement of the surfaces ranged from sound to cavitated. Electrical impedance spectroscopy sweeps in a frequency range of about 100 kHz to 10 Hz were completed at selected temperatures between 22 degrees C and 40 degrees C. After fitting the data to equivalent circuits that yielded parameter values for components of the equivalent circuit,we calculated the dc bulk resistance (R-b). The temperature dependence of R-b of the surfaces with different carious involvement was very similar, and the mean drop of R-b from 20 to 35 degrees C was 45% (SD 2%). It was concluded that the electrical resistance of sound and carious tooth surfaces isinversely related to temperature.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 11:31:45