Studies on Mineralized Dental Tissues: V. Microradiographie investigation of experimentally produced caries and attrition in white rats
Abstract
From : The Departinelit of Physical Cell Hesearcli (Head: Professor ARNE ENIisrRBM), I<arolinslta Institutet, Stocltholm, and The Department of Dental Histopatliology at T h e Hoyal School of Dentistry. Stocltholm STUDIES ON MINERALIZED DENTAL TISSUES' 1'. Microradiographic investigation of experiiiientally produced caries and attrition in white rats I n carious lesions in in;in, there occurs a deiiiineralization o f both enamel and dentine. This demiiier:ilization can be de1nonstr:ited hy means of x-ray absorption nieasurement, i.e. the lesions absorb less radiation th:m the surrounding norinal tissue. In certain p r t s of the lesions, however, a n increased content of mineral salts may be observed (cp. Bergman c(? Engfeldf, 1954). It has been shown by I'm Hiiysen et 01. (1937), that a n increase in x-ray absorption may also result f r o m attrition. A suitable experimental diet will produce caries in ruts. 'l'he diet most often used is the one coniposed by Hoppert, W e b b e r ct- Canniff (1931 1, which inter nlia contains coarsely ground maize (HM'C diet). Upon this diet ensues, together with caries, attrition of the cusps. The aim of the present investigation is t o study, by iiieans of