Incorporation of magnesium into rat dental enamel and its influence on crystallization.
The incorporation of magnesium into the enamel of immature rats was studied by chemical analysis and X-ray diffraction. Magnesium solutions were injected subcutaneously and later intra-orally into growing rats. Increased magnesium was detected in the enamel at the late developmental stage, and a delay in enamel mineralization resulted from increased magnesium uptake. Incisal enamel from the Mg-injected rats had significant line-broadening on X-ray diffraction, characteristic of poorly crystallized enamel.
Spencer
P
P
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180-3590.
Barnes
C
C
Martini
J
J
Garcia
R
R
Elliott
C
C
Doremus
R
R
D000818:Animals; D003460:Crystallization; D003743:Dental Enamel / Q000032:analysis / Q000378:metabolism*; D005260:Female; D008274:Magnesium / Q000032:analysis / Q000378:metabolism*; D008297:Male; D013058:Mass Spectrometry; D051381:Rats; D011919:Rats, Inbred Strains; D014961:X-Ray Diffraction
D008274:Magnesium