Photoshop Tutorials: Whiten and Brighten Teeth In Photoshop
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Written by Steve Patterson, Photoshop Essentials.com
In this Adobe Photoshop tutorial, we're going to see how to make teeth whiter and brighter in Photoshop using a Hue/Saturation adjustment layer, a brush and a layer mask.
Here's the image I'll be using for this tutorial:
Let's start by working on the guy's teeth first, and then we'll use what we've done to quickly fix the woman's teeth as well.
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Step 1: Select The Area Around The Teeth With The Lasso Tool
First, grab the Lasso tool from the Tools palette, or press the letter L to quickly select it:

With the Lasso tool selected, I'm going to draw a selection around the guy's teeth. I don't need to be precise with my selection here because this selection is only temporary. All I need is to have his teeth inside the selection area:

Step 2: Choose A Hue/Saturation Adjustment Layer
With the area around his teeth selected, I'm going to go to the bottom of the Layers palette and click on the New Adjustment Layer icon:

Then I'll select a Hue/Saturation adjustment layer from the list:
This brings up the Hue/Saturation dialog box, and we're going to use it to remove the yellow from his teeth and brighten them at the same time next.