To support the teeth, the gums and underlying bone need to be healthy. This is why you'll need to keep up with routine dental care throughout the treatment process. All cavities should be filled before surgery. If you have gum (periodontal) disease, you'll see a periodontist or general dentist for treatment. You may have other dental problems that need correction. For example, if you have wisdom teeth, they will most likely need to be removed before you get braces. When your teeth and gums are ready, you'll go on to the next step.