There has been some studies... you can read the article I wrote about 
dental caries on the LLL website... I think it does a pretty good job of 
summarizing the data we have on this issue and the reference section 
points to other articles/studies on the subject. 

I would assume that the likelihood of the 3 year old sharing bacteria 
with the newborn is pretty good, regardless of tandem nursing, and 
therefore breastfeeding/breastmilk would reduce the risk of cavities...

Joylyn

Lavinia Belli wrote:

>The other day a mother asked if tandem nursing would increase her 15 day´s old baby´s risk of developing cavities due to the early exposure to bacteria from his 3 years old brother.   She is not thinking about weaning either of them but was just curious.  I must admit I have never given it a thought.  Any ideas? Experiences? Studies about it?
>
>TIA
>
>Lavinia Belli, LLL, IBCLC
>Belgium
>
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