do Vale, I F [Periapical radiographic long cone technic. Comparative study of short and long cone technics, used to determine tooth length in endodontic practice]. [electronic resource] - Estomatologia e cultura - 53-8 p. digital Publication Type: Journal Article ISSN: 0014-1364 Subjects--Topical Terms: OdontometryRadiography, DentalRoot Canal TherapyTooth--anatomy & histology