With any kind of orthodontic treatment, even that involving removable braces such as the Bionator, there is a risk of a shortening of the roots. This so-called root resorption is a natural by-product of orthodontic treatment, and that includes lingual orthodontics. Fortunately, root resorption is not usually very extensive; it remains unnoticed for life and has no damaging consequences. However, in rare cases an almost total resorption of the roots can occur, and, in extreme cases, even losing some teeth is conceivable. There are no differences here between the different kinds of orthodontic treatment.
But there are clear differences when we come to something that is feared just as much (as root resorption) and that is damage to the enamel or so-called decalcification. This refers to the white or brown stains and stripes in the tooth enamel than can occur as a result of poor dental hygiene when using fixed braces. Such devices can leave ugly, permanent marks on the outside surfaces of the teeth that are visible to others. Here, the Lingual Technique has a distinct advantage: if any decalcification should occur on the inner surfaces of the teeth, this would be practically invisible.