title: Canal configuration in the mesiobuccal root of the maxillary first molar: a clinical study.
abstract: Surgical telescopes, headlamps, and a modified access preparation were used clinically to aid in the search for mesiolingual canals in the mesiobuccal roots of 208 maxillary first molars. In 148 (71.2%) of the mesiobuccal roots two canals were located and treated. Of these, 66 (31.7%) had two separate apical foramina (Weine Type III) and 82 (39.4%) had two canals that joined (Weine Type II). In 60 (28.9%) cases only one canal was located.
authors.affiliation: Department of Restorative Dentistry, Faculty of Dentistry, University of Manitoba, Winnipeg, Canada.
authors.forename: H M
authors.initials: HM
authors.lastname: Fogel
authors.forename: M D
authors.initials: MD
authors.lastname: Peikoff
authors.forename: W H
authors.initials: WH
authors.lastname: Christie
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D016009:Chi-Square Distribution; D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D008963:Molar / Q000033:anatomy & histology*; D009811:Odontometry / Q000379:methods; D014092:Tooth Root / Q000033:anatomy & histology*