1. The incidence of unerupted permanent teeth and related clinical cases;Grover;Oral Surg Oral Med Oral Pathol,1985
2. The unerupted maxillary central incisor;Brin;ASDC J Dent Child,1982
3. Andreason JO. The impacted incisor. In: Andreasen JO, Petersen JK, Laskin DM, editors. Textbook and color atlas of tooth impactions. Diagnosis, treatment and prevention. Copenhagen: Munksgaard; 1997. p. 113-24
4. Indications for surgical removal of supernumerary teeth in the premaxilla;Koch;Int J Oral Maxillofac Surg,1986
5. Similar locations of impacted and supernumerary teeth in monozygotic twins;Langowska-Adamczyk;Am J Orthod Dentofacial Orthop,2001