title: Proportional length determination: mathematical method.
mesh_terms: D003786:Dental Pulp Cavity / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005069:Evaluation Studies as Topic; D006801:Humans; D016014:Linear Models; D008433:Mathematics; D009811:Odontometry / Q000379:methods*; D010865:Pilot Projects; D011861:Radiography, Dental; D015203:Reproducibility of Results; D012390:Root Canal Therapy / Q000379:methods*; D014092:Tooth Root / Q000033:anatomy & histology* / Q000000981:diagnostic imaging