Betty gets her braces off in the episode titled "Million Dollar Smile," which is Season 4, Episode 17 of Ugly Betty. This episode originally aired on March 24, 2010. In it, Betty finally has her braces removed after three seasons, following a dream sequence where she imagines what her life would be like with perfect teeth. The braces removal happens near the end of the episode, performed by her new orthodontist, Dr. Frankel