In this tutorial we will teach you the use of polygonal lasso tool and play with the Hue and Saturation options to whiten teeth in a photo in Photoshop. Before editing an image, it is recommended to use the crop tool and separate the particular area of the image which needs to be edited. This would help you to edit the image easily, as you are just handling a specific area of the entire image. We will be teaching you the use of polygonal lasso tool to whiten the teeth, using a sample image which has been already cropped. You can crop an image using the crop tool which is located on the toolbar at the right.
Learn the process of whitening teeth in Photoshop by following the steps in this tutorial.