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In vivo measurement of bone mineral content of mandibles by dual‐photon absorptiometry
Author(s) -
WOWERN NINA
Publication year - 1985
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1985.tb01326.x
Subject(s) - bone mineral content , forearm , medicine , in vivo , anatomy , mandible (arthropod mouthpart) , dentistry , bone density , osteoporosis , biology , microbiology and biotechnology , botany , genus
– The purpose of this study was 1) to reveal the short‐ and long‐term precision of non‐invasive in vivo measurements of bone mineral content (BMC) in larger and smaller parts of mandibles and in forearm bones by a new two‐dimensional dual‐photon attenuation system GT45; 2) to develop normal reference values and ranges for mandibular BMC in individuals between 20‐40 yr of age without known systemic diseases and with normal oral state, ( n = 56, F:M = 1:1), and 3) to relate mandibular BMC with forearm bone BMC, sex and age, by comparing BMC values of a well‐defined normal old test group ( n = 24, F:M = 1:1, 70‐81 yr of age) with the normal reference values. The analyses indicated: 1) the in vivo short‐ and long‐term precision of the methods is high. 2) BMC of mandibles and forearm bones is significantly related to sex and age ( P <0.01, and in mandibles of young females/males: P = 0.02). 3) BMC in mandibles and forearm bones is significantly correlated in both age groups ( P <0.01) with relatively weak coefficients of correlation. GT45 may be used to follow BMC changes in mandibles in groups or single individuals after surgical treatment and to evaluate sex and age dependent BMC changes in mandibles and forearm bones.