Q. When my son was a toddler he knocked his two bottom teeth on a table. They were not knocked out, but were very loose. Luckily they were okay and becam stronger, he is now 4 and a few months back he opened a bottle with a pull lid with his teeth. One of the two teeth became lose. I thought it would just fall out, months later it is still just lose, causing no pain. The other day I noted his gum was receeded. I assumed this was due to the wobbly tooth. This morning, it fell out, the tooth that is. I am worried that when his new teeth advenualy grows through the gum will still be low and not hold his tooth. Will his gum grow back, and hold his new tooth?