case_images: PMC9712005_01
case_images: Tooth discoloration caused by occupational exposure to copper in a 15-year-old male patient.
case_images: IJD2022-3399120.001.jpg
case_images: PMC9712005_01_IJD2022-3399120.001.jpg
case_images: fig1
case_images: A 15-year-old male patient presented with moderate to severe green stains on the upper and lower anterior teeth (Figure 1).
case_images: Teeth after prophylaxis with pumice powder using a low-speed handpiece at the end of the first appointment.
case_images: IJD2022-3399120.002.jpg
case_images: PMC9712005_01_IJD2022-3399120.002.jpg
case_images: fig2
case_images: Another photograph was taken immediately after the prophylaxis procedure (Figure 2).
case_images: Teeth after air polishing treatment using air flow handy device with sodium bicarbonate.
case_images: IJD2022-3399120.003.jpg
case_images: PMC9712005_01_IJD2022-3399120.003.jpg
case_images: fig3
case_images: An image was taken after the treatment for further evaluation (Figure 3).
case_images: Teeth after bleaching with hydrogen peroxide whitening gel at the end of the final appointment.
case_images: IJD2022-3399120.004.jpg
case_images: PMC9712005_01_IJD2022-3399120.004.jpg
case_images: fig4
case_images: This procedure was repeated for a second time in the same appointment (Figure 4).
case_images: Teeth after the treatment at the follow-up session 6 months after the initial treatment.
case_images: IJD2022-3399120.005.jpg
case_images: PMC9712005_01_IJD2022-3399120.005.jpg
case_images: fig5
case_images: The patient was asked to come 6 months after the treatment for a follow-up evaluation.  Figure 5 shows the treatment result in the follow-up session after 6 months.