My puppy lost a baby tooth while we were playing tug so my plan is to stop tug play and focus on tracking and obedience. How long is the teething process and how do I know when it’s OK to resume tugging?

In the puppy bite work class Michael tells us to stop playing tug when they start teething. Today my pup lost a very small baby tooth while we were playing. So, my plan is to stop all rag-and-tug play and work on tracking and obedience. My question is, how long will this process be and how can I monitor the situation?

Thank you!