1. A textbook of oral pathology;Shafer,1983
2. Oral pathology;Soames,1985
3. The clinical significance of dental invagination;Ruprecht;J Pedod,1987
4. Multiple bilateral dens in dente as a factor in the etiology of multiple periapical lesions;Burton;Oral Surg,1980
5. Bilateral dens invaginatus with associated radicular cysts;Augsburger;Oral Surg,1978