Number of roots and canals in maxillary first premolars: study of an Andalusian population.

@article{Chaparro1999NumberOR,
  title={Number of roots and canals in maxillary first premolars: study of an Andalusian population.},
  author={Antonio Jes{\'u}s Chaparro and Juan Jos{\'e} Segura and Emma Guerrero and Alicia Jim{\'e}nez-Rubio and C{\'a}rdenas Murillo and J J Feito},
  journal={Endodontics & dental traumatology},
  year={1999},
  volume={15 2},
  pages={
          65-7
        }
}
A study of 150 extracted maxillary first premolars from citizens of Seville, Andalusía, southern Spain, revealed 60 teeth with one root (40.0%), 85 teeth with two roots (56.7%) and five teeth with three roots (3.3%). The distribution of root canal shapes in the sample showed that all teeth with two or three roots had type I root canals (each canal had one apical foramen). Conversely, most of the single-rooted maxillary first premolars had root canal shape type II (two canals converging in the… CONTINUE READING

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