Evaluation of techniques used for disimpaction and uprighting of mandibular second molars: a systematic review

The second molars developed, like all the other teeth, by the dental lamina which starts to form at the level of stomodeo between the VI and VII weeks of intrauterine life. These teeth, and in particular second mandibular molars may develop some eruptive path alterations that determine their impaction or inclusion against the first molar crown. This is a rare situation with a prevalence between 0 and 2.3% but if it isn’t correctly treated it will provoke the loss these important teeth. For this reason, the aim of our work was: at the first, to realize a detached review on international literature to evaluate all the diagnostic techniques used for intercepting early these eruptive alterations and, on the other hand, to compare the treatment alternatives to indicate the most efficacy and effective to reestablish completely the occlusion and the whole functions of stomatognatic apparatus.