If you're going ot have a tooth pulled, suggestion. make sure you request a local anaesthetic WITHOUT a vasoconstrictor and also make sure they will remove the periodontal ligament with the tooth. As so often they don't and this can end up interferring wtih healing and allow cavitations to form.

Vaso constrictors are not good, as they are designed to frustrate the blood flow to the area (to increase the effectiveness of the anaesthetic), problem is, in doing that, the area is deadened far more and for longer and can also frustrate healing, and yet another possible contributing factor in cavitation forming.

So root canals are bad, so are cavitations and wise to make sure you are going to a dentist who is aware of this and will do THOROUGH clean out of tooth, ligament and the whole area and then stitch it up.