My puppies teeth

Question
Hi i was wondering if you could guide me in a more professional and educated way.  My puppy is going to
become 5 months old on Aug. 18th.

I was walking my puppy around the block when he started to bite his leash at the part where the metal fastens to the collar, when he ran and jerked so hard he pulled out two of his teeth...!

Please help in any information that could benefit in
caring appropriatly for him can you tell me?.

Answer
Like children, puppies lose their baby teeth as the adult teeth come in.  The teeth often come out when they are tugging on something like you described.  If he damaged his permanent teeth by biting on the metal, then they need to be fixed or extracted.  Check with your vet.