The obvious thing to do, and one that Bandolier tries to encourage, is to search out a systematic review, and preferably one based on randomised trials. This should give the highest level of evidence. Prophylactic removal of impacted third molars Opinions about prophylactic removal of impacted third molars vary widely.
Some people seem to think it is a good thing, because it prevents later pain and suffering.
Others can't see the reason for doing an unnecessary procedure unless the teeth are causing problems. A thorough literature search found 12 published reviews fit for inclusion, and five which were not. Results of reviewing the reviews Only one review gave its search strategy and criteria for including a research paper. Two reviews concluded that prophylactic removal of third molars is a good thing. The other ten concluded that there was a lack of evidence to support prophylactic removal of impacted third molars.