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The effect of silicate cement on enamel and dentin
Author(s) -
GRIEVE A. R.
Publication year - 1974
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.1600-0722.1974.tb00408.x
Subject(s) - demineralization , dentin , enamel paint , silicate , dentistry , pulp (tooth) , cement , chemistry , materials science , composite material , medicine , organic chemistry
— The effects upon enamel and dentin of mixes of two different viscosities of silicate cement were examined by polarized light microscopy and microradiography. The silicate was applied to the cut surfaces of extracted teeth for periods of time ranging from 1 h to 2 weeks. In a few cases a very slight degree of demineralization of enamel occurred. Surface demineralization of the dentin, however, was observed in all specimens. This zone of demineralization in the dentin was widest centrally over the pulp and narrowed peripherally towards the amelodentinal junction. A zone of increased mineralization was observed underlying the demineralized area. The fluid mix of silicate resulted in more rapid loss of mineral than did the more viscous mix, but in neither case did the extent of demineralization appear to increase after the first 24 h. In a number of cases, especially those to which the fluid mix had been applied for 24 h, a subsurface zone of demineralization was also observed in the dentin.