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Fluoride profiles in the cementum and root dentine of human permanent anterior teeth extracted from adult residents in a naturally fluoridated and a non‐fluoridated area
Author(s) -
Kato S.,
Nakagaki H.,
Toyama Y.,
Kanayama T.,
Arai M.,
Togari A.,
Matsumoto S.,
Strong M.,
Robinson C.
Publication year - 1997
Publication title -
gerodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 54
eISSN - 1741-2358
pISSN - 0734-0664
DOI - 10.1111/j.1741-2358.1997.00001.x
Subject(s) - cementum , fluoride , dentistry , medicine , root caries , dental cementum , orthodontics , dentin , chemistry , inorganic chemistry
Objectives: To determine the effect of water fluoride concentration on the fluoride profile across the entire thickness of the cementum and root dentine of human permanent anterior teeth in adults. Subjects: Twenty‐eight human permanent anterior teeth from individuals aged from 30 to over 60 years were studied. Setting: Teeth were obtained from a natural high‐fluoride area (West Hartlepool, UK; 1.0–1.3 ppm F in drinking water, WHP) and the other from a non‐fluoridated naturally low fluoride area (Leeds, UK; 0.1 ppm F in drinking water, LDS). Design: Cementum and root dentine were sampled using an abrasive micro‐sampling technique from the cementum surface to the pulpal surface of root dentine. Results: Fluoride concentration was higher in tooth roots (the cementum and dentine) taken from the naturally fluoridated area (WHP) than from the non‐fluoridated area (LDS). Age and average fluoride concentration showed a positive correlation in WHP dentine, middle region of the root (r = 0.78, P < 0.001) and in the apical region of the root (r = 0.67, P < 0.05). WHP cementum had the strongest fluoride concentration correlation with age in the cervical region of the root (r = 0.67, P < 0.01). An analysis of variance (ANOVA) showed that the area (water fluoride content), age and number of years lived in the area combined with total age were significant. Conclusions : The fluoride content of cementum and root dentine in adult residents is related to fluoride content in drinking water.