title: Root morphology of the maxillary first premolar in Singaporeans.
abstract: Extracted teeth were collected from clinical procedures performed in the Faculty of Dentistry, National University of Singapore. A selected sample of 957 maxillary first premolars were subjected to visual examination and digital radiography. There was a higher incidence of two-root form (50.6 per cent) than previously reported for the Singaporean dentition. In the two-root category, 307 teeth exhibited the fused-root form (two fused roots with two root canals) and 177 were distinctively of the two-root form (two separate roots with two root canals and two foramina). The fused-root form was emphasized as an entity in this study. The one-root form accounted for 49.4 per cent. No three-root form was detected.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, National University of Singapore, National University Hospital, Singapore.
authors.forename: H S
authors.initials: HS
authors.lastname: Loh
mesh_terms: D001641:Bicuspid / Q000002:abnormalities / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D003786:Dental Pulp Cavity / Q000002:abnormalities / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D006801:Humans; D015994:Incidence; D008437:Maxilla; D011856:Radiographic Image Enhancement; D012846:Singapore; D014081:Tooth Extraction; D014092:Tooth Root / Q000002:abnormalities / Q000033:anatomy & histology* / Q000000981:diagnostic imaging