Tooth extraction: how long does it take to fully heal?

3 to 6 months. Healing starts the day the tooth is removed, but it takes a while for gum to cover the socket where the tooth was, and for bone to fill in the hole underneath the gum. Often, an x-ray will show the outline of where the tooth was for years after the extraction because teeth are surrounded by a dense layer of bone.
In stages. Beginning healing in about 1 week. Next stage healing in about 2-3 weeks. Complete healing can take up to 3-6 months.

Related Questions

After a wisdom tooth extraction - assuming the tooth was fully erupted - how long does it take for the extraction site to heal?

Wound healing. With the understanding that each case is different from both a dental and medical standpoint here are some basic guidelines. Gums will heal over in about 10 days to 2 weeks, although the gum may still feel somewhat tender for longer. Bone maturation takes 8-12 weeks generally. Read more...