AbstractAim: To study the root canal morphology in maxillary first and second premolars and classify the canal configuration according to Weine. Materials and Methods: 100 maxillary teeth (50 first premolar and 50 second premolar) were selected for the study. The teeth were cleared using clearing technique. The canal morphology was studied and classified according to Weine. Results: Maxillary first premolars showed 26% type I, 0% type II, 56% type III, 18% type IV configuration and maxillary second premolars showed 34% typeI,12% type II, 42% type III, 12% type IV configuration. Conclusion: The canal configuration studied and classified showed that type III predominated in both maxillary first and second premolars. Clinical significance: This study helps the undergraduate and postgraduate students to know the prevalence of type of canal configuration in maxillary premolars of northern part of Karnataka state, India. Also, helps in knowing the anatomy of teeth so that a successful endodontic therapy can be rendered to the patient.
Key words: Clearing technique; Canal configuration; Weine’s classification.