Is rusty Harley retainer harmful to people?

Yes Retainer is a device that patients wear after orthodontic treatment. If it is not properly cleaned and rusted during wearing, it can no longer be worn, which will cause tooth decay, digestive tract and gastrointestinal tract damage. It is best to keep it clean during wearing. The traditional retainer, also called Harley retainer, is made of resin material and steel wire, which has obvious self-regulation effect on posterior teeth occlusion.