英国曼彻斯特大学

• " on the basis of our research if there are irregularities , and especially if they are not severe , then there will be no harm to dental health and it would n ' t change their life happiness in the future if they do n ' t wear braces , " said professor william shaw , an orthodontist at the university of manchester in england
  英国曼彻斯特大学的正牙师威廉姆肖教授说： “根据我们的研究，如果牙齿畸形不是很严重，就不会影响牙齿健康，所以即使不带牙套，也不会影响他们的幸福感。 ”