Assessment of root morphology and canal configuration of maxillary premolars in a Saudi subpopulation: a cone-beam computed tomographic study

Abstract Background The objective of this study was to use CBCT look into the root canal morphology maxillary premolars in a Saudi Arabian subpopulation and associate results existing classifications. Methods sample size for analysis 500 right left untreated first second with fully formed roots from 250 residents (125 male 125 female). following observations were made using on teeth related: (1) number roots; (2) each according Vertucci's classification. frequency similarities between sides, as well females males, studied. Chi-square test used assess results. Results Of studied, 199 had one (39.8%), whilst 293 (58.6%) two-rooted. Three-rooted found 8 (1.6%). For premolars, 416 (83.2%), 79 (15.8%) two rest 5 (1.0%) three roots. There significant differences groups (p > 0.05). premolar, Type IV most frequent, accounting 57.8% (n = 289), followed by type II (32.8%, n 164). I mainly occurrence 302 (60.4%), (16.4%, 82). Conclusions majority canals, while common anatomical configuration premolars. Additional forms do occur occasion, clinicians should pay close attention them.