case_images: PMC8360754_01
case_images: Cone beam computed tomography (CBTC) showing the oroantral communication in coronal view.
case_images: CRID2021-5001266.001.jpg
case_images: PMC8360754_01_CRID2021-5001266.001.jpg
case_images: fig1
case_images: Further investigation with cone beam CT confirmed an oroantral fistula measuring 9.4 mm x 7.7 mm (Figures 1 and 2).
case_images: Cone beam computed tomography (CBTC) showing the oroantral communication in sagittal view.
case_images: CRID2021-5001266.002.jpg
case_images: PMC8360754_01_CRID2021-5001266.002.jpg
case_images: fig2
case_images: Further investigation with cone beam CT confirmed an oroantral fistula measuring 9.4 mm x 7.7 mm (Figures 1 and 2).
case_images: Immediately after swelling developed at the left malar region (around 2 hours postoperatively).
case_images: CRID2021-5001266.003.jpg
case_images: PMC8360754_01_CRID2021-5001266.003.jpg
case_images: fig3
case_images: Around 2 hours postoperative, he contacted the clinic to inform us that he had a sudden facial swelling that developed over a few seconds (Figure 3).
case_images: Postoperative 8 hours shows resolving of the left malar swelling.
case_images: CRID2021-5001266.004.jpg
case_images: PMC8360754_01_CRID2021-5001266.004.jpg
case_images: fig4
case_images: The swelling was slightly reduced 8 hours after its initial appearance (Figure 4).
case_images: Postoperative day 3 shows that residual left malar swelling remains.
case_images: CRID2021-5001266.005.jpg
case_images: PMC8360754_01_CRID2021-5001266.005.jpg
case_images: fig5
case_images: Upon review, 3 days later, the swelling was significantly reduced (Figure 5).
case_images: Postoperative day 7 shows that the swelling is completely resolved.
case_images: CRID2021-5001266.006.jpg
case_images: PMC8360754_01_CRID2021-5001266.006.jpg
case_images: fig6
case_images: At 7 days postoperative, the swelling had completely resolved (Figure 6).