There are a few factors to consider when deciding if Aligners or Braces would be best for you: Cost: Aligners cost 20-30% more Amount of Responsibility: Braces work 24/7. Aligners only work if you do. Length of Treatment: Aligners usually take 25-50% longer. Frequency of In-Office Visits: Braces every 6-8 weeks; Aligners every 12-16 weeks. Complete Control: Need a break for a big day? Aligners can step aside. Initial Comfort: Braces: several weeks Aligners: several days.