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What Is Overjet And How Can It Be Treated

Aus Kössler Lehrerlexikon




The term overjet describes how far the top front teeth stick out horizontally compared to the bottom teeth — a typical orthodontic condition where the front upper teeth extend too far beyond the lower ones. While a slight gap of overjet is expected in a balanced bite, severe overjet can lead to chewing difficulties, increase the risk of trauma, make eating uncomfortable, and even affect emotional well-being due to appearance-related anxiety.



Several factors contribute to the development of overjet. Jaw structure is commonly inherited, 東京 前歯矯正 meaning the skeletal framework of the face can be passed down through families. Other contributing causes include extended non-nutritive sucking, thumb-sucking beyond age five, which can reposition the maxillary arch while retracting the mandibular dentition. Chronic nasal obstruction can also disrupt normal jaw development. In some instances, tooth loss in the lower arch or insufficient mandibular growth may exacerbate or cause the condition.



Treatment strategies for overjet depends on the severity of the case and the developmental stage. For young patients, early intervention is typically most effective. Traditional metal or ceramic braces and Removable transparent trays are standard tools to correct tooth positioning. When dysfunctional jaw development is involved, functional appliances such as Herbst appliances or palatal expanders may be recommended to stimulate forward growth of the lower jaw or restrict excessive upper jaw growth.



For adults with severe overjet, braces or aligners only may be insufficient to achieve optimal results. In such cases, jaw repositioning surgery may be required to properly realign the jaws. This procedure is typically preceded and followed by orthodontic treatment to achieve ideal occlusion.



The length of treatment varies from case to case, depending on the treatment plan. Mild overjet can often be resolved in a year to a year and a half, while surgical cases may require two years or more. Scheduled monitoring appointments are essential to track progress and ensure optimal outcomes.



When overjet is noticeable in a patient, it is strongly recommended to schedule a professional assessment. An early evaluation, ideally before permanent teeth fully erupt, allows the orthodontist to intervene before worsening and avoid complex future treatment. Correcting overjet improves more than looks — it also reduces risk of dental trauma by enhancing chewing efficiency.



Maintaining excellent oral hygiene during treatment is vital. Braces and appliances can hinder effective brushing, so consistent brushing and flossing, along with professional prophylaxis, are necessary to combat demineralization and gingivitis. Once appliances are removed, wearing retainers as instructed is mandatory to stop teeth from shifting.



Being informed about malocclusion management empowers individuals and caregivers to choose the right path. With expert-guided care, the vast majority of overjet cases can be fully resolved, resulting in enhanced bite performance, reduced strain, and lasting confidence.