Dental extractions are performed for a wide variety of reasons. Tooth decay that has destroyed enough tooth structure to prevent restoration is the most frequent indication for extraction of teeth. Other indications are related to impacted or problematic wisdom teeth and also to make space for orthodontic treatment in some particular cases.
Extraction of wisdom teeth: wisdom teeth molars typically develop at age 10 and may begin to surface any time during adolescence or in a person's twenties. Impacted wisdom teeth may become painful and problematic, at which point they are often extracted through minor oral surgery. The dental community knows more than ever before about the consequences of not extracting impacted wisdom teeth. If impacted wisdom teeth are not extracted, a variety of issues may occur.