1. Orthodontics: current principles and techniques;Graber,2022
2. Mandibular second molar impaction-PartⅡ: etiology and role of the third molar;Shapira;Appl Sci,2022
3. Maxillary second molar impaction in the adjacent ectopic third molar: report of five rare cases;Souki;Contemp Clin Dent,2015
4. Mandibular molar impaction. Part I: genetic traits and characteristics;Shapira;Am J Orthod Dentofacial Orthop,2011
5. Impaction of permanent mandibular second molar: a retrospective study;Cassetta;Med Oral Patol Oral Cir Buca1,2023