Do you know what is a retainer?
A retainer is an appliance that is supposed to hold the teeth in position. Especially after orthodontic treatment, it is worth keeping the teeth straight. There are loose and fixed retainers.
What is a loose retainer?
Is an aligner that can be worn at night. It is mostly like a shield of plastic that can be placed on the tooth. It keeps the teeth from moving and as well protects them in case of bruxism or pressing.
What is a fixed retainer?
A fixed retainer is inserted on the lingual or palatinal surface of the tooth from canine to canine. It is fixed there with glue and is supposed to stay there for many years.