I am nearly 50 and still have all 4 wisdom teeth. I have room on my jaw, they never pushed around the other teeth, they all came in straight and fully erupted. No problems with them ever.
I have always had problems with dentists insisting they be pulled immediately, tales of doom and woe, etc.
My dad is in his 80’s, still has his, no problems there either.
Here is my opinion:
Yes, wisdom teeth CAN cause terrible problems for some people. In other people they cause no problems whatsoever. However, these days dentists have a kneejerk PULL THEM! PULL THEM! mindset. This extends to doing nothing regarding care and tending of them when for any other tooth they’d be arguing all sorts of measures to fix 'em and keep 'em.
More opinion:
If you want to justify keeping wisdom teeth the following must apply:
- They are not impacted/causing pain
- They erupt fully
- They come in reasonably straight
- They aren’t crowding/pushing around other teeth
- Very important - the person can and DOES get all the way back there to clean them
If there’s a cavity it raises the question of whether or not the kid (who I presume is either very late teens or early 20’s and arguably no longer “kid”) is actually doing #5. If the person isn’t keeping those teeth clean they will decay and cause problems later on. The later a wisdom tooth extraction occurs the more problematic it is, both because older folks don’t heal as well, and because… well, I’m not sure why but anecdotally people I’ve know getting them out in their 30’s or 40’s seem to have a much harder time of it than those who have it done in the early 20’s.
Here, again, is my opinion:
Tell the dentist that, sorry, you don’t have dental insurance. It will take time to save up the funds for ANY sort of extraction. In the meanwhile you want that “small cavity” dealt with to prevent more serious problems during that extended wait to acquire funds for an extraction. Argue for this firmly. Letting a cavity just sit there is waiting for trouble and is stupid/ridiculous.
Meanwhile, tell the kid that if he/she doesn’t do a better job on oral hygiene those teeth WILL have to come out. Because that’s the truth. He/she has until the funds for extraction are accumulated to improve and demonstrate an ability to care for all teeth in his/her mouth. If they kid can do that, he/she probably doesn’t need the extractions after all. If the kid doesn’t, you have the money to get the problem dealt with.
Finally - the above is entirely my opinion as I am in no way a dental professional. I know from personal experience wisdom teeth don’t “inevitably” cause problems, but they certainly can. Keeping them requires taking care of them properly.