@Trevp666 perhaps your dentist was somewhat inexperienced, or was being unnecessarily dramatic. Rest assured that intramandibular disto-impacted wisdom teeth are not as rare as they may have indicated.
Most of us tend these days to display the annoying tendancies of living beyond 25, and not having to chew on salad made from tree-bark or crunching upon the femurs of dead donkeys. In which era, wisdom teeth would've been useful.
Some seem to think that evolutionary pressures will weed wisdom teeth out, eventually, but I have doubts.