Early treatments begin before all the permanent teeth are through the gums, which is usually between the ages of 7 and 10. Early treatments usually use expanders and partial braces to fix crossbites, overbites, underbites, or to make space for adult teeth. Standard treatment begins when all the permanent teeth are through the gums and fully developed. This usually happens between the ages of 11 and 13, and the most common treatment is braces.Comprehensive treatment is a combination of early and standard treatment options.