Bruxism and Clear Aligners: Can You Correct and Protect at the Same Time?

Do you clench or grind your teeth at night? Discover how clear aligners can correct your occlusion while protecting your teeth from bruxism.

Bruxism — the involuntary grinding or clenching of teeth, most often during sleep — affects around 8 to 10% of the adult population. Often associated with stress, it causes accelerated enamel wear, muscular and joint pain, and sometimes dental fractures. Clear aligners can play both a corrective and protective role in this condition.

Bruxism and malocclusion: an often overlooked link

While stress is the main cause of bruxism, a malocclusion — a faulty contact between teeth when closing — can aggravate or trigger it. When teeth do not mesh harmoniously, the masticatory muscles compensate by seeking stable contact, resulting in clenching and grinding. Correcting the occlusion with aligners can in some cases reduce the intensity of bruxism.

Aligners as night-time protection

During treatment, orthodontic trays act as a protective splint: they create a barrier between the upper and lower arches and absorb part of the clenching forces. This reduces wear on dental surfaces during treatment. However, orthodontic aligners are not designed to withstand severe bruxism forces — in this case, a custom occlusal splint is recommended as a complement or replacement at night.

Can you start aligner treatment if you have bruxism?

Yes, in most cases — with appropriate precautions. Your certified Infinity Aligner dentist will assess the severity of bruxism and the condition of the enamel before planning treatment. If wear is advanced, prior restoration of dental surfaces may be necessary. If bruxism is mild to moderate, treatment can begin with enhanced monitoring.

After treatment: retention and bruxism splint

At the end of orthodontic treatment, the night retainer serves a dual role for bruxism patients: it stabilises the new tooth position AND protects enamel from clenching forces. It is often the most economical and practical solution for managing both issues simultaneously.

Conclusion

Bruxism is not a contraindication to clear aligners — it is a condition to be taken into account from the treatment planning stage. At Infinity Aligner, every bruxism patient receives a personalised assessment and a plan adapted to their situation. Discuss it with your certified dentist at your first consultation.