PMC3710607_01
IOPA showing metallic screw in the pulp chamber of #84 with intact pulpal floor.
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fig1
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).
IOPA showing intact furcal area with no evidence of interradicular bone loss.
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fig2
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).
IOPA after retrieval of the metallic screw.
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fig3
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). 
Obturation of the #84.
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fig4
Following obturation with Vitapex (Neo Dental International, Inc., USA) the access cavity was restored with Ketac Molar (3M ESPE, USA) (Figure 4).