The role that mandibular third molars play in lower anterior crowding has provoked much speculation in dental literature. As a result of such opinions, the removal versus the preservation of third molars became the subject of contention in dental circles. The differing views ranged between extremes, and can be expressed in two different statements. Third molars should be removed even on prophylactic basis, because they are frequently associated with future orthodontic and periodontal comlications as well as other pathologic conditions. There is no scientific evidence of cause-and -effect relationship between the presence of third molars and orthodontic and periodontal problems. The purpose of this study was to disscuss some of the major consideration and the present controversy surrounding third molars as they relate to orthodontics. The clinician should be base to extract or not extract third molars on the most current scientific information and what is best for each individual patient.
Key words : extraction of mandibular third molars, mandibular third molars, anterior mandibular crowding
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