case_images: PMC3415095_01
case_images: Gross Specimen showing dilation of root.
case_images: CRIM.DENTISTRY2012-871937.001.jpg
case_images: PMC3415095_01_CRIM.DENTISTRY2012-871937.001.jpg
case_images: fig1
case_images: This tooth had 3 cups, a small buccal cusp, a small mesiolingual, and a large distolingual cusp but retaining the Y-shaped groove (Figure 1).
case_images: Cropped orthopatomogram showing invagination in root of mandibular right first premolar.
case_images: CRIM.DENTISTRY2012-871937.002.jpg
case_images: PMC3415095_01_CRIM.DENTISTRY2012-871937.002.jpg
case_images: fig2
case_images: The mandibular right 2nd premolar revealed an invagination into the pulpal chamber of the tooth from the radicular portion and periapical radiolucency with an ill-defined border was present around the apex on lateral aspect of the root (Figure 2).
case_images: Longitudinal section of involved tooth showing invagination in root of mandibular right first premolar.
case_images: CRIM.DENTISTRY2012-871937.003.jpg
case_images: PMC3415095_01_CRIM.DENTISTRY2012-871937.003.jpg
case_images: fig3
case_images: The pulp extended from the apical foramen to the cervical region of the tooth then split just below the cemento-enamel junction (Figure 3).