Two brief observations about recent discussions.
Firstly, my second child (aged 5) has recently been 'diagnosed' with
poorly developed enamel on some of his teeth (molars and incisors).
He was a keen around-the-clock feeder for over 18 months. Dentist
felt cause was likely to be illness during pregnancy or in very early
postpartum period in baby. I can't recall either, but was relieved
that breastfeeding wasn't blamed for his problems. Thankfully no
decay, but his chances of getting a cavity are 30 times normal !!

Thumb sucking - I have felt a bit guilty about this for ages, since
reading a posting that related thumb sucking to unmet needs at the
breast. Of my three children, the only one to suck a thumb has been
my youngest (just turned 2 years), who has breastfed the longest
and most frequently. She
mainly sucks her thumb when tired or upset/shy, but will often
refuse a feed if it is offered at those times. Don't know how to
explain this !!