PMC4664793_01
Access opening.
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Clinical examination with a DG 16 (Hu-Freidy, USA) explorer revealed three mesial orifices and one distal canal (Figure 1).
Working length.
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A radiograph was taken to confirm the working length and the presence of three mesial canals (mesiobuccal, mesiolingual, and middle mesial) and one distal canal (Figure 2).
CBCT.
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Three separate mesial orifices were verified using CBCT of the same tooth (Figure 3).
Master cone.
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After drying the canals with paper points (Dentsply, India), master cones (Dentsply, India) were selected which were confirmed by radiographs (Figure 4).
Obturation.
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AH Plus (DeTrey/Dentsply, Germany) as sealer by lateral condensation technique. A temporary dressing (Cavit G,3M ESPE, Germany) was given and a radiograph was taken to confirm the obturation (Figure 5).
Follow-up radiograph.
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The patient has been followed up for two years and is asymptomatic (Figure 6).