The role of Function Generating Bite (FGB) devices on changes of chewing patterns and muscle activity in deep bite malocclusion

Background: A malocclusion known as a deep bite occurs when the mandibular incisors are covered by the maxillary incisors by more than the normal value of 30-40% or 2-4 mm. Deep bite is a type of malocclusion that is often found in children and adults, with a prevalence of 23.83% in the Asian population. Patients with a deep bite have a restricted masticatory pattern and have excess function of the mastication muscles. Active muscle training should be recommended to improve jaw bone morphology. Objective: This review aims to explain the role of the Function Generating Bite (FGB) device on changes in masticatory patterns and muscle activity in deep bite malocclusion. Methods: The search for literature reviews was conducted using the ScienceDirect, PubMed, and Google Scholar databases. The selected literature was published between 2010 - 2023 in English and Indonesian. Discussion: Treatment of deep bite in each patient varies depending on the etiology of the malocclusion. One of the functional therapies that can be used to correct malocclusion is FGB. The FGB device has an anchorage system on the muscles, which can regulate and exert pressure intermittently, so as to correct dental malocclusion and functional imbalance. Conclusion: Treatment with FGB has been shown to significantly improve the lateral component of the masticatory pattern and reduce muscle hyperactivity in deep bite patients during mastication.