Endodontic access with different computer navigation systems in calcified root canals

1. García Franco, C.
2. Riad Deglow, E.
3. Montero, J.
4. Abella Sans, F.
5. Nagendrababu, V.
6. Dummer, P.M.H.
7. Lobo Galindo, A.B.
8. Zubizarreta-Macho, Á.