case_images: PMC3710607_01
case_images: IOPA showing metallic screw in the pulp chamber of #84 with intact pulpal floor.
case_images: CRIM.DENTISTRY2013-296425.001.jpg
case_images: PMC3710607_01_CRIM.DENTISTRY2013-296425.001.jpg
case_images: fig1
case_images: An intraoral periapical radiograph of the tooth revealed presence of a linear radiopaque object (metallic screw) 6.5 x 4 mm in dimension, which was embedded in the pulp chamber of #84 (Figures 1 and 2).
case_images: IOPA showing intact furcal area with no evidence of interradicular bone loss.
case_images: CRIM.DENTISTRY2013-296425.002.jpg
case_images: PMC3710607_01_CRIM.DENTISTRY2013-296425.002.jpg
case_images: fig2
case_images: An intraoral periapical radiograph of the tooth revealed presence of a linear radiopaque object (metallic screw) 6.5 x 4 mm in dimension, which was embedded in the pulp chamber of #84 (Figures 1 and 2).
case_images: IOPA after retrieval of the metallic screw.
case_images: CRIM.DENTISTRY2013-296425.003.jpg
case_images: PMC3710607_01_CRIM.DENTISTRY2013-296425.003.jpg
case_images: fig3
case_images: With the help of piezoelectric ultrasonics (Dentsply Tulsa Dental Specialties, USA) at low intensity the screw was very slowly disengaged from the pulpal chamber taking care that the thin buccal and lingual walls did not fracture (Figure 3). 
case_images: Obturation of the #84.
case_images: CRIM.DENTISTRY2013-296425.004.jpg
case_images: PMC3710607_01_CRIM.DENTISTRY2013-296425.004.jpg
case_images: fig4
case_images: Following obturation with Vitapex (Neo Dental International, Inc., USA) the access cavity was restored with Ketac Molar (3M ESPE, USA) (Figure 4).