Function Generating Bites (FGB) devices, conceived by Prof. Bracco in the late 20th century, represent a groundbreaking fusion of various functional devices like Bionator, Stockfisch Kinetor, double feed plate, and Frankel devices. Unlike their predecessors, FGBs avoid a forced bite and refrain from dictating the target position of the lower jaw. The innovation extends beyond the oral cavity, compensating for vertical misalignments throughout the entire body.

Myofunctional Benefits of FGB: FGBs stand out for their myofunctional effects, not limited to oral and jaw muscles but influencing the entire body. Symmetrical construction allows FGBs to block the chewing plane, harmonizing muscles from head to toe. This unique feature enables the correction of the lower jaw's position through functional adjustments, especially crucial in pediatric cases.

Addressing Myofunctional Disorders: Myofunctional disorders, affecting oral, facial, throat, and body muscles' coordination, can manifest in various symptoms like speech or swallowing difficulties, sleep apnea, temporomandibular joint disorders, and headaches. FGBs offer an effective solution, promoting nasal breathing and demonstrating positive results in studies focused on myofunctional mobilization and interocclusal joint decompression.

Early Intervention for Holistic Growth: Early detection and therapy for myofunctional disorders are essential to prevent worsening conditions and minimize intervention times. Preserving orofacial functions in children is crucial for normal facial development and overall body growth. FGBs play a pivotal role in achieving these goals.

Ascending and Descending Myofunctional Chains: Understanding myofunctional chains reveals the interdependence of muscles in the head, neck, and oral cavity, extending down to the feet. Ascending chains involve muscles working from bottom to top, impacting posture and stability. In contrast, descending chains, starting from the head and neck, influence the entire body, highlighting the intricate connections between oral health, posture, and overall well-being.

Effects of FGB on Myofunctional Chains: FGB appliances, unlike fixed devices, respect the body's natural alignment. Fixed appliances that force the jaw into a set position can cause pain and strain in distant body regions. In contrast, FGBs, worn during sleep, guide the lower jaw without fixing it, allowing natural movements. This ensures proper muscle tone and alignment without causing discomfort, promoting correct muscle function and jaw alignment.

In conclusion, FGBs represent a holistic approach to oral and body health, addressing myofunctional disorders and promoting natural alignment without imposing unnatural constraints. Their impact extends beyond the oral cavity, making them a valuable tool for individuals seeking comprehensive well-being.