What are unerupted posterior molars?

Under gums: Those are back teeth which have not yet erupted or pushed up into the mouth so you can see them and use them. They are still below the gums and in the bone. Similar to wisdom teeth which have not "come in" yet. At your age you should have 2 molars (largest teeth) at the very back in all 4 corners of your mouth. If not, see your Dentist or Oral Surgeon for evaluation. Good Luck.

Impacted: A tooth that is prevented from erupting is considered to be impacted. Risk of damage to adjacent teeth, bone, gum tissues is about 1 in 8, a risk factor high enough that treatment is usually recommended. Ask your Dentist if you should see an Oral Surgeon.

Molar impaction: The teeth that most commonly become impacted are the third molars and the prognosis is very good when impacted teeth are removed. See your dentist for consulation.