case_images: PMC7245664_01
case_images: Periapical radiograph showing maxillary second premolar with abnormal morphology.
case_images: CRID2020-8634797.001.jpg
case_images: PMC7245664_01_CRID2020-8634797.001.jpg
case_images: fig1
case_images: The CBCT confirmed the unusual anatomy and revealed four separate roots with four canals (Figures 1 and 2).
case_images: CBCT showing maxillary second premolar with 4 roots.
case_images: CRID2020-8634797.002.jpg
case_images: PMC7245664_01_CRID2020-8634797.002.jpg
case_images: fig2
case_images: The CBCT confirmed the unusual anatomy and revealed four separate roots with four canals (Figures 1 and 2).
case_images: Access cavity photograph showing 4 canals orifices.
case_images: CRID2020-8634797.003.jpg
case_images: PMC7245664_01_CRID2020-8634797.003.jpg
case_images: fig3
case_images: Inspection of the pulp floor under the dental operating microscope (Carl Zeiss, Germany) revealed four separate canal orifices (mesiobuccal, distobuccal, mesiopalatal, and distopalatal) (Figure 3).
case_images: Radiographic taken during endodontic treatment, working length measurement, master cone, and final obturation after backfill soften root filling.
case_images: CRID2020-8634797.004.jpg
case_images: PMC7245664_01_CRID2020-8634797.004.jpg
case_images: fig4
case_images: The patient was referred back to the prosthodontist for the final restoration (Figure 4). 2 years follow up clinical examination showing healthy gingiva with probing depth within normal limit, radiographic showing normal apical tissue (Figure 5).
case_images: Two years follow up showing normal apical tissue.
case_images: CRID2020-8634797.005.jpg
case_images: PMC7245664_01_CRID2020-8634797.005.jpg
case_images: fig5
case_images: The patient was referred back to the prosthodontist for the final restoration (Figure 4). 2 years follow up clinical examination showing healthy gingiva with probing depth within normal limit, radiographic showing normal apical tissue (Figure 5).