Wisdom tooth eruption

Wisdom tooth eruption

How long do wisdom teeth take to erupt? I've got one coming through right now and it's partially erupted but I've only had toothache for a few days. I really want to avoid a trip to the dentist if at all possible because I know it'll be expensive but if it's impacted then I know I've got to go. I can't find anywhere online though that says on average how long it might take to erupt and I'd rather wait and see if it'll come through on it's own but I don't know how long to leave it. At the moment it appears to be about half way out with the back section still covered by my gum. Any advice would be much appreciated!
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