An inverse overbite, commonly known as a Class III malocclusion or progeny, presents a dental condition where the lower jaw protrudes in front of the upper jaw when the mouth is closed. This abnormal bite, where the lower teeth and jaw extend beyond the upper teeth and jaw, can range from mild to severe, causing various dental, facial, and body issues. The complexity of inverse overbites stems from a combination of genetic and environmental factors, making it a nuanced condition with diverse causes.

Genetic Factors: An imbalance in the growth of the upper and lower jaws, often influenced by genetics, is a primary cause of inverse overbites. Family history may play a significant role in the development of this malocclusion.

Tongue Thrusting: Habitual tongue thrusting, where the tongue pushes against the front teeth in the lower jaw during swallowing, speaking, or at rest, can contribute to the development of inverse overbites. This habit can exert pressure, causing the lower jaw to protrude forward.

Congenital Conditions: Certain congenital conditions, such as cleft lip and palate, may result in an inverse overbite. These conditions impact the formation of facial structures and can contribute to malocclusions.

Difficulty Chewing: Inverse overbites can hinder the ability to bite and chew food properly, leading to potential digestive problems and malnutrition. The misalignment of the jaws affects the natural chewing motion.

Speech Problems: Pronunciation and speech can be affected by inverse overbites. The misalignment of the jaws may make it challenging to articulate certain words or sounds accurately.

Self-Esteem Issues: The appearance of the face can be altered by inverse overbites, potentially causing self-esteem issues, particularly in children and teenagers. The visual impact of the malocclusion may lead to concerns about facial aesthetics.

Treatment Options for Inverse Overbites: The severity of the condition and the age of the patient play crucial roles in determining the appropriate treatment for inverse overbites. FGB appliances, or Function Generating Bite devices, offer a promising avenue for improvement in many cases. These custom-made devices aim to guide jaw growth, correct misalignments, and address the root causes of inverse overbites. Regular monitoring and adjustments by orthodontic professionals are essential elements of the treatment process.