Correcting Excessive Overjet: Causes And Solutions
Overjet is defined as the forward projection of the upper front teeth beyond the lower ones — a frequent orthodontic condition where the top incisors jut forward excessively beyond the lower ones. While a minor amount of overjet is normal and healthy, pronounced overjet can impair bite mechanics, increase the risk of trauma, hinder proper mastication, and even undermine self-confidence due to aesthetic dissatisfaction.
The condition arises from multiple underlying influences. Hereditary factors are often key, meaning the size and alignment of the jaws can be passed down through families. Childhood habits such as prolonged thumb sucking, or pacifier use, which can reposition the maxillary arch while retracting the mandibular dentition. Chronic nasal obstruction can also disrupt normal jaw development. In specific scenarios, tooth loss in the lower arch or a retrognathic mandible may directly result in overjet.
Treatment strategies for overjet depends on the severity of the case and the patient’s age. During childhood and adolescence, early intervention is typically most effective. Traditional metal or ceramic braces and Removable transparent trays are commonly used to correct tooth positioning. When jaw growth discrepancy is involved, orthopedic appliances such as headgear or rapid maxillary expanders may be prescribed to encourage mandibular advancement or slow maxillary protrusion.
For adults with severe overjet, braces or aligners only may be not enough to achieve optimal results. In such cases, maxillomandibular osteotomy may be essential to restore facial harmony. This procedure is typically preceded and followed by orthodontic treatment to guarantee post-surgical bite accuracy.
How long correction takes varies from case to case, depending on the complexity of the malocclusion. Minor misalignment can often be resolved in 12 to 18 months, while severe skeletal discrepancies may require up to three years. Regular checkups are essential to track progress and prevent setbacks.
When overjet is noticeable in a patient, it is strongly recommended to seek expert evaluation. An early evaluation, ideally around the age of 7, allows the orthodontist to intervene before worsening and avoid complex future treatment. Treatment doesn’t just enhance appearance — it also boosts oral health by lowering the chance of injury.
Practicing diligent cleaning during treatment is vital. Braces and appliances can make cleaning difficult, so daily oral care routines, along with regular dental cleanings, are key to preventing demineralization and 東京 前歯矯正 periodontal issues. Post-correction phase, wearing retainers as instructed is mandatory to maintain long-term results.
Being informed about malocclusion management empowers patients and families to make confident, informed decisions. With expert-guided care, the vast majority of overjet cases can be successfully corrected, resulting in improved function, greater comfort, and lasting confidence.