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ESTIMATION OF INTRINSIC AND EXTRINSIC ENVIRONMENT FACTORS OF AGE-RELATED TOOTH COLOUR CHANGES
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SYSNO ASEP 0436477 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title ESTIMATION OF INTRINSIC AND EXTRINSIC ENVIRONMENT FACTORS OF AGE-RELATED TOOTH COLOUR CHANGES Author(s) Hyšpler, P. (CZ)
Jezbera, D. (CZ)
Fürst, T. (CZ)
Mikšík, Ivan (FGU-C) RID, ORCID, SAI
Waclawek, M. (PL)Source Title Ecological Chemistry and Engineering S. - : Sciendo - ISSN 1898-6196
Roč. 17, č. 4 (2010), s. 515-525Number of pages 11 s. Language eng - English Country PL - Poland Keywords age-related colour changes of teeth ; intrinsic and extrinsic factors ; 3D mathematical regression models ; estimation of real age Subject RIV ED - Physiology CEZ AV0Z50110509 - FGU-C (2005-2011) UT WOS 000285632200008 EID SCOPUS 84860773981 Annotation Age-related colour changes of biological objects are the results of changes in structure and properties which may reflect the influence of the extrinsic and intrinsic environment. The method discriminating these two factors has not been published yet. A device for colour measurement of vital erupted and impacted teeth was built from commercially fiber optic spectrometer coupled with specific custom-made parts. The rate of complex discolouration caused by the total factors decreases over the life of humans. The rate of colour changes caused by intrinsic factors is nearly constant over the life-time. Age estimation of the vital erupted teeth will be only approximate (s.d. 6.2 years), more convenient are the impacted teeth immediately after extraction (s.d. 3.1 years). Correlation between the subjects age and yellowness of b* values of impacted teeth suggests a presumably similar mechanism of colour changes in bone and impacted teeth Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2015
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