case_images: PMC7341431_01
case_images: Starting clinical situation.
case_images: CRID2020-4876437.001.jpg
case_images: PMC7341431_01_CRID2020-4876437.001.jpg
case_images: fig1
case_images: She presented a fistula in correspondence of tooth 2.2 (Figure 1), and with an X-ray, it was possible to see the previous endodontic treatment and a radiolucent lesion greater than 1.5 cm in diameter (Figure 2).
case_images: Starting X-ray.
case_images: CRID2020-4876437.002.jpg
case_images: PMC7341431_01_CRID2020-4876437.002.jpg
case_images: fig2
case_images: She presented a fistula in correspondence of tooth 2.2 (Figure 1), and with an X-ray, it was possible to see the previous endodontic treatment and a radiolucent lesion greater than 1.5 cm in diameter (Figure 2).
case_images: Starting CT.
case_images: CRID2020-4876437.003.jpg
case_images: PMC7341431_01_CRID2020-4876437.003.jpg
case_images: fig3
case_images: A computed tomography was performed (Figure 3).
case_images: Preparation of the flap.
case_images: CRID2020-4876437.004.jpg
case_images: PMC7341431_01_CRID2020-4876437.004.jpg
case_images: fig4
case_images: The flap produced had been carried out at partial thickness in order to ensure the greatest possible mobility (Figure 4).
case_images: Endodontic surgery.
case_images: CRID2020-4876437.005.jpg
case_images: PMC7341431_01_CRID2020-4876437.005.jpg
case_images: fig5
case_images: K-files with sequence 15-20-25 taper 0.2 were used at first, then Pro file (Procad, Karlsruhe, Germany) from file 15 to file 40 (Figure 5).
case_images: Bone curettage.
case_images: CRID2020-4876437.006.jpg
case_images: PMC7341431_01_CRID2020-4876437.006.jpg
case_images: fig6
case_images: The root canal was closed with MTA (Dentsply Maillefer, Pennsylvania, USA) (Figure 6).
case_images: Membrane of a mixture of fibrin and poor plasma created.
case_images: CRID2020-4876437.007.jpg
case_images: PMC7341431_01_CRID2020-4876437.007.jpg
case_images: fig7
case_images: Positioning of the membrane.
case_images: CRID2020-4876437.008.jpg
case_images: PMC7341431_01_CRID2020-4876437.008.jpg
case_images: fig8
case_images: Membrane positioned.
case_images: CRID2020-4876437.009.jpg
case_images: PMC7341431_01_CRID2020-4876437.009.jpg
case_images: fig9
case_images: Final suture.
case_images: CRID2020-4876437.010.jpg
case_images: PMC7341431_01_CRID2020-4876437.010.jpg
case_images: fig10
case_images: Postoperative X-ray.
case_images: CRID2020-4876437.011.jpg
case_images: PMC7341431_01_CRID2020-4876437.011.jpg
case_images: fig11
case_images: An X-ray was performed (Figure 11).
case_images: Healing after 3 months, clinical situation.
case_images: CRID2020-4876437.012.jpg
case_images: PMC7341431_01_CRID2020-4876437.012.jpg
case_images: fig12
case_images: After 2 months, the apical lesion completely healed (Figure 12).
case_images: Healing at 6-month follow-up, X-ray.
case_images: CRID2020-4876437.013.jpg
case_images: PMC7341431_01_CRID2020-4876437.013.jpg
case_images: fig13
case_images: Follow-up at 2 and 6 months and 4 years demonstrated the success of the treatment (Figures 13 and 14).
case_images: X-ray at 4-year follow-up.
case_images: CRID2020-4876437.014.jpg
case_images: PMC7341431_01_CRID2020-4876437.014.jpg
case_images: fig14
case_images: Follow-up at 2 and 6 months and 4 years demonstrated the success of the treatment (Figures 13 and 14).