How is “reverse overjet” (mandibular prognathism) treated?

Well-aligned teeth enhance one’s confidence when smiling; thus, most individuals aspire to achieve better dental alignment. How is “mandibular prognathism” (commonly known as “underbite”) treated?

How Is Mandibular Prognathism Treated?

In cases of mild skeletal mandibular prognathism, orthodontic appliances may be used for correction—though treatment duration tends to be relatively long. For moderate or severe skeletal prognathism, combined orthodontic and orthognathic surgical treatment is typically required. First, an orthodontist performs pre-surgical orthodontic alignment of the teeth; subsequently, an oral and maxillofacial surgeon conducts corrective jaw surgery—including Le Fort I osteotomy, sagittal split ramus osteotomy (SSRO), and genioplasty—to achieve comprehensive correction.

The choice of correction method for mandibular prognathism depends primarily on whether it is dental (tooth-related) or skeletal in origin. As etiologies differ, so do treatment approaches. Dental-origin underbites can generally be effectively corrected through outpatient orthodontic treatment.

Orthodontic correction works primarily by applying controlled force via braces to gradually reposition teeth into their ideal alignment. Both traditional metal braces and clear aligners exert gentle, consistent forces that guide teeth toward proper positioning. This process not only improves tooth alignment but also corrects occlusion (bite relationship). During treatment, regular follow-up visits to the orthodontist for adjustments are essential to optimize outcomes and minimize overall treatment time. Additionally, maintaining excellent oral hygiene in daily life is crucial. We hope this information proves helpful!