Objectives: To assess the type of canals in extracted maxillary first premolar using Vertucci’s classification.
To determine the association between number of roots and Vertucci’s classification among maxillary first premolars. Methods: The study was conducted on extracted human 91 maxillary first premolars using convenience sampling. The stored teeth were cleaned and stored in formalin. Access cavities were prepared using a round bur and canal orifices were observed with naked eye. The teeth were decalcified and rendered transparent to obtain a 3 dimensional view of the root canal system using the technique reported by Robertson et al. The anatomy of the root canal was observed under light microscope and classified based on Vertucci’s Classification and recorded in the performa.
SPSS version 19.0 was used for data analysis.
Mean and frequencies of variables such as length of the teeth, crown height and circumference at cervix were determined.
Student t test was used to compare the dimensions of single and bi rooted teeth while Chi square test was used to determine the association between vertuciis class and number of roots. Results: Type I canal morphology was seen in 72% of the maxillary first premolars.
There was a statistically significant difference between the lengths of single-rooted and multi-rooted maxillary first premolars. Conclusions: The most prevalent canal morphology seen was Vertuccis’ Type I with a single canal extending from the chamber to the apex.
Single rooted teeth had greater occluso-apical length than two or three-rooted teeth.