PMC8266475_01
Preoperative radiograph.
CRID2021-5547062.001.jpg
PMC8266475_01_CRID2021-5547062.001.jpg
fig1
The preoperative radiograph revealed radiopacity in the pulpal chamber and at the apical third of one of the roots (Figure 1). While the former was indicative of a restorative material, the latter on the other hand disclosed a fractured/separated instrument from the previously initiated therapy (Figure 1).
File bypass/working length.
CRID2021-5547062.002.jpg
PMC8266475_01_CRID2021-5547062.002.jpg
fig2
Once the fractured file was bypassed completely (Figure 2), sequentially larger files (size 20 K-files) were introduced seamlessly till the size 25 SS K-files working their way to the apex, as described earlier.
Master cone.
CRID2021-5547062.003.jpg
PMC8266475_01_CRID2021-5547062.003.jpg
fig3
Drying of the canals was made certain with absorbent paper points (Dentsply Sirona), following which the master cone fit was checked and confirmed on a radiograph (Figure 3).
Postoperative radiograph.
CRID2021-5547062.004.jpg
PMC8266475_01_CRID2021-5547062.004.jpg
fig4
Obturation of the prepared canals was attained by the single cone gutta-percha (Dentsply Maillefer) technique with AH Plus resin-based sealer (Dentsply DeTrey, Konstanz, Germany) as the sealant (Figure 4).
1-year follow-up.
CRID2021-5547062.005.jpg
PMC8266475_01_CRID2021-5547062.005.jpg
fig5
Reduction in size of the lesion was markedly visible at the 1-year follow-up period (Figure 5).