Parents can spend a small fortune on their children\'s dental work. In Britain, braces can cost 2,000 pounds ($3,915) or more depending on the severity of the problem.
Parents can spend a small fortune on their children\'s dental work. In Britain, braces can cost 2,000 pounds ($3,915) or more depending on the severity of the problem.
每年全世界都有不计其数的儿童接受正牙治疗，以使牙齿变得更加整齐或是矫正畸形。