1. Configurations and deviations of root canals of maxillary first premolars;Carns;Oral Surgery, Oral Medicine, Oral Pathology,1973
2. Root canal morphology of the human mandibular first molar;Skidmore;Oral Surgery, Oral Medicine, Oral Pathology,1971
3. Frequency of two mesiobuccal root canals in maxillary permanent first molars;Seidberg;Journal of the American Dental Association,1973
4. Incidence of bifurcations in mandibular incisors;Madeira;Oral Surgery, Oral Medicine, Oral Pathology,1973
5. Root canal anatomy of the mandibular anterior teeth;Vertucci;Journal of the American Dental Association,1974