Fig. 1

Pre - Op Radiograph , showing a lower 1st molar with a GP that is reaching the WL with lesion on both roots after old treatment.

Fig. 2

The first line of the treatment was to remove any filling inside the canal, followed by the placement of an intra - canal medication to raise the pH inside, since the root canal was still wet.

Fig. 3

The patient left for 3 months and didn’t show up. When she came back and we took an X-ray , we found that a lesion healed after long term placement of the medication. 

Fig. 4

Both mesial and distal canals were filled with squirting technique

Fig. 5

IDS, “IMMEDIATE DENTIN SEALING’ was done immediately after the obturation in conjunction with the overlay preparation. 

Fig. 6

Picture of the preparation with IDS and multiple isolation

Fig. 7

Overlay cementation

Fig. 8

Overlay cementation

Conclusions

The clinician must have enough knowledge about the root canal anatomy, techniques and to know how to deal with errors if happened as well to provide the patient with a good, sealed long term restoration. 

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