Beaker

I have given my LO a beaker with meal since weaning at 6months. Gradually he has drunk more as he got used to it and has sips all day, he has never had a problem drinking water from a beaker.

His now 11months old and has had teeth for around 6weeks, the past 3weeks I have tried to give him his milk (before naps and bed) in a beaker as I know drinking from a bottle with teeth is bad for them but he will not drink it, no even one drop!

Any suggestions