up-voted for pointing out this disruptive fact. However, the explanation is over-simplistic. Perhaps a bigger contributory factor is whether diet contains the

up-voted for pointing out this disruptive fact. However, the explanation is over-simplistic. Perhaps a bigger contributory factor is whether diet contains the nutritional factors require for proper teeth formation. The case for this factor was made convincingly a century ago [1]. [1] http://gutenberg.net.au/ebooks02/0200251h.html#ch5 http://gutenberg.net.au/ebooks02/0200251h.html#ch5