we just completed a study on medical effects of Sr, Ce and La on teeth development and health. Anybody out there who can add some more background on the issue? Suitable references in scientific literature are very scarce!
From previous studies on REEs effects to human and environment of water toxicity perspectives also medical wastes. I think many of the REE scientists much touched on Gd (gadolinium) from diethyltriaminepentaacetic acid which produced from medical tool such MRI or etc, through waste water treat plant and river environment. However some of them were working on how the tooth and bone had effected from REE species such as i.e.,Ce and La industries and seen scarcely the source as what you said. These some paper that might be explicit the basis studies as in file enclosed below.
Best regard's
Zolhizir Daud
Das, T., Sharma, A. and Geeta, T. (1988) Effects of lanthanum in cellular systems Biological. Trace Element Research 18, 201–228.