Evaluation of root canal morphology of maxillary second premolars in a Saudi Arabian sub-population: An in vitro microcomputed tomography study.

By Elnour M, Khabeer A, AlShwaimi E

Date: 05/2017
Journal: Saudi Dent J

Summary: 

Purpose: to investigate the root canal morphology of maxillary second premolars in a Saudi Arabian subpopulation using microcomputed tomography (micro-CT).

N= 100 maxillary second premolars

Materials/Methods:

•The anatomy of each tooth (number of roots, canals, orifices, and apical foramina, and the presence of apical deltas and accessory canals) was analyzed from reconstructed three-dimensional images.

Most highlighted Results:

•The most common morphology was a single root (67%), followed by two roots (30%), and three roots (3%).

•Regarding the canal morphology, most teeth (65%) contained two canals, followed by 30% with one canal, and 5% with three canals.

•One orifice was observed in 55% of teeth, and two orifices were detected in 45% of teeth.

•According to the Vertucci classification, the most common canal types were IV and V (both found in 23% of teeth), followed by type I (17%), type III (9%), type II (7%), and type VII (2%).

•Additional types that were inconsistent with the Vertucci classification were recorded in 19% of teeth.

Clinical significance:

The root canal morphology of maxillary second premolars in the Saudi Arabian subpopulation is complex and requires cautious evaluation prior to endodontic treatment