Frank R. Portell

Maxillary first molar with six canals

John L. Bond, Gary Hartwell, Frank R. Portell · Journal of Endodontics · 1988 · 85 citations

Medicine, Root Canal Treatment, Anatomy +1

Leakage in vitro with IRM, high copper amalgam, and EBA cement as retrofilling materials

Daniel L. Bondra, Gary Hartwell, Michael G. MacPherson et al. · Journal of Endodontics · 1989 · 81 citations

Materials Science, Cementation, High Copper Amalgam +3

The effect of immediate versus delayed dowel space preparation on the integrity of the apical seal

Frank R. Portell, William E. Bernier, Lewis Lorton et al. · Journal of Endodontics · 1982 · 62 citations

Immediate Versus, Dowel Space Preparation, Sealant +1

Clinical management of middle mesial root canals in mandibular molars

John L. Bond, Gary Hartwell, Jerome C. Donnelly et al. · Journal of Endodontics · 1988 · 42 citations

Root Canal Treatment, Clinical Dentistry, Mandibular Molars

Two root canals in a maxillary lateral incisor

Bruce H. Thompson, Frank R. Portell, Gary Hartwell · Journal of Endodontics · 1985 · 41 citations

Root Canal Treatment, Anatomy, Root Canals