Hi , I'm looking for advice regarding a Labrador Puppy with an overbite. Her bottom teeth seem to be around 4mm inset from her top ones. She is perfectly healthy otherwise. Eating drinking etc She is due to leave us this weekend and wondering if anyone has had experience in this situation. The vet missed this at her last check i just noticed by chance. Thanks x

It may improve over time because the lower jaw usually carries on growing beyond when the upper jaw stops.  Talk to your vet about what's going on and for sure, before he is sold.   He should not be bred from, and as this mating has produced this, it should not be repeated.

https://hhvh.net/2014/05/13/when-can-an-overbite-be-a-problem-for-your-growing-puppy-have-you-ever-heard-of-dental-interlock/

Thank you for your response. I know the buyers and they have no intention of breeding so that's not a concern. The main thing is that its too early to judge if its going to be a problem in the future so I'm anxious about passing on a dog that may well down the line require surgery. Its a  really difficult situation.

As above, an overbite has a good chance to correct. I wouldn’t be worried about it either way in a pet, and I really can’t imagine it needing any intervention.

Hopefully it won't need surgical intervention but you might suggest to the new owners that IF this is necessary, you will help re cost (up to you for how much and this is where your own vet should be able to advise).   And do make absolutely sure they aren't likely to want to breed from her, later on!!   Endorse 'not for breeding' which won't necessary stop them, but it will show intention on your part.    This is an hereditary problem.

That's probably small enough to rectify itself with time (given that the lower jaw grows for a longer time than the upper) and the pup hopefully won't need any treatment in the meantime (a severely overshot mouth can result in the lower canines piercing the roof of the mouth, and need removal). Definitely point it out to the puppy buyers so that they're aware, and be willing to help with cost if surgery is needed.

I would be less worried about an overbite than an underbite. I think it will probably correct itself.