The only way is Essix? Overview of thermoformed retainers

Retention is the orthodontic treatment phase that attempts to keep teeth in their desired positions following active orthodontic treatment. Most patients who have undergone orthodontic treatment will require a retention phase as without it there is a tendency for the teeth to relapse towards their initial positions. Therefore, patients will usually need to wear retainers after completing the active orthodontic treatment phase and the thermoformed retainer is one such type. Often named ‘Essix’ retainers after one brand of material commonly used to fabricate them, thermoformed retainers have become increasingly popular in recent years.

Following the publication of the General Dental Council Scope of Practice in 2009, the preparation of thermoformed retainers is an additional skill that dental nurses can develop. This article looks at why thermoformed retainers are used, how they are made and the legal obligations of dental professionals who provide them.