Impacted lower permanent second molars do not occur frequently. When they do
occur, they can present a serious treatment problem. It is essential to diagnose and treat as
early as possible because treatment at a later stage is usually more complicated as the longer time tends
to increase malocclusion and subsequently reduces efficiency in occlusion of
remaining dentition. This case mentions one patient who had impacted lower permanent
second molar and was treated with surgical removal of the impacted tooth, thus allowing the lower
permanent third molar to erupt. The result was satisfactory.
(CU Dent J. 2007;30:51-60)