Abstract
Surgery combined with orthodontic uprighting of impacted mandibular second molars requires sequential treatment procedures. This article presents a rare case of horizontally impacted bilateral mandibular second molars accompanied by dental crowding. The patient’s mandibular second molars were fully embedded in bone with overlying mesially-impacted mandibular third molars and the mandibular first molars were inclined distally. The treatment involved staged bilateral extraction of the second premolars and mandibular third molars, followed by the surgical implantation of micro-implants for anchorage in the mandibular ramus. At a subsequent stage, the mandibular second molars were successfully orthodontically uprighted, leading to a favourable treatment outcome.