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Root canal morphology of maxillary premolars
N Kartal1, B Ozçelik, H Cimilli
1Department of Endodontics, Faculty of Dentistry, Marmara University, Istanbul, Turkey.
Journal of Endodontics
|August 7, 1998
Summary
Maxillary first premolars predominantly feature two root canals (89.64%), with a small percentage exhibiting one or three. Maxillary second premolars show a near-even split between one (48.66%) and two canals (50.64%).
Area of Science:
- Endodontics
- Dental Anatomy
Background:
- Understanding the internal anatomy of maxillary premolars is crucial for successful endodontic treatment.
- Variations in root canal morphology can complicate root canal procedures.
Purpose of the Study:
- To investigate the internal anatomy of maxillary first and second premolar teeth.
- To classify root canal morphology using Vertucci's classification system.
Main Methods:
- Six hundred extracted maxillary premolars were analyzed.
- Teeth underwent a modified clearing technique and ink dyeing of root canal systems.
- Root canal morphology was examined under a dissecting light microscope.
Main Results:
- Maxillary first premolars: 8.66% had one canal, 89.64% had two canals, and 1.66% had three canals.
- Maxillary second premolars: 48.66% had one canal, 50.64% had two canals, and 0.66% had three canals.
- Analysis included root number, canal types, ramifications, apical foramina, and anastomoses.
Conclusions:
- Significant morphological variations exist in maxillary premolar root canal systems.
- The high prevalence of two canals in maxillary first premolars and a near-equal distribution in second premolars are key findings.
- These anatomical insights are vital for endodontic diagnosis and treatment planning.