In this method, we’ll be using the Brush tool, which can be found in the Tools tab on the main page of the app. Select the Dodge & Burn brush, located first from the left, and use the up and down arrows at the bottom of the page to adjust the intensity of the tool. Start gently moving your index finger over each individual tooth from top to bottom until you have the desired shade of white.Pinch the image to zoom in on the teeth and use the blue rectangle in the lower left corner of the screen to navigate the photo.Now that the settings are complete, do the following: Since burning at maximum intensity (10) would whiten your teeth unrealistically, we set the intensity to 5. Be careful not to go over the edge and accidentally whiten the lip. However, if you accidentally whiten the lip, you can set the brush identity to 0 (“eraser”) and erase your mistakes as if you were drawing with a pencil.
