1. Dens in dente;Kitchin;Oral Surg., Oral Med. & Oral Path.,1949
2. Bilateral dens in dente;Toto;Oral Surg., Oral Med. & Oral Path.,1953
3. Hine, M. K. Personal communication.
4. Permanent maxillary lateral incisor;Atkinson;Am. J. Orthodont. & Oral Surg.,1943
5. Dens in dente;Shafer;New York D. J.,1953