Goal: The goal is to evaluate the influence on the quality of life of the orthodontic appliances beneficial for bruxism treatment (Andersen and Twin-block) in children, aged 7-12.

Method: The study was done on 50patients, aged 7-12, with diagnosed bruxism, and divided into two groups. The first group received Andersen’s orthodontic appliances, while the second received Twin-block orthodontic appliances. The quality of life and the state of the bruxism were recorded twice: at the beginning of the study and after 6 months.

Conclusion: The treatment of bruxism proved to be practically identical between the Andersen and the Twin-block appliances. The quality of life on the other hand, showed significantly better results in regards to the Andersen appliance, making it the orthodontic appliance of choice when treating bruxism in children.