[Rickysa]

Internal resorption cannot be fixed...have it removed

Leaving the space will lead to the farthest tooth back tipping into the space which can lead to bone problems and complicate restoration later.

I don't know why immediate grafting was mentioned...the lower jaw has bunches of bone and a graft is usually indicated for long-standing extraction sites where the "alveolar bone", or the bone that exists just to support the tooth, has been lost.

How about a simple retainer to just hold the teeth like they are after the extraction? Wear it periodically at night to hold the back molar in place...we have kids that come through our office that are naturally missing teeth, and make them retainers to hold the space until they are old enough to have the implant/restoration done (usually 18 or so).

(orthodontist, not restorative dentist)