What does “deep bite” mean?
A deep bite means the upper front teeth cover the lower front teeth more than is considered ideal. In some people the overlap is mild; in others the lower teeth can be largely hidden.
A deep bite is different from overjet, which is the horizontal distance between upper and lower front teeth.
Why can a deep bite matter?
Not every deep bite causes symptoms, but in some adults it can contribute to tooth wear, trauma to soft tissue, bracket interference or functional problems during treatment planning.
Whether it needs treatment depends on the severity and the rest of the bite.
Why do adults have it?
Causes vary and can include tooth position, eruption patterns, jaw relationships and habits. Sometimes it is simply the way the bite developed over time.
Previous orthodontic relapse may also play a role in some adults.
How do orthodontists correct a deep bite?
Treatment may involve leveling the arches, controlling incisor position, using bite turbos, elastics or other anchorage methods. The exact mechanics depend on the face, bite and treatment goals.
The aim is not just a prettier smile but a more balanced bite relationship.
What is different about adults?
Adults often have restorations, wear facets, gum considerations or previous dental work that influence planning. That is why adult bite correction is individualized and sometimes more complex than teenage treatment.
Retention also matters, because deep bite correction can relapse if the retention plan is poor.
Useful questions for your consultation
Ask how severe the deep bite is, what treatment stage addresses it, whether bite turbos may be needed and how the correction will be retained afterwards.
Sources & further reading
- NHS — Braces and orthodontics — General orthodontic background relevant to bite correction.
- British Orthodontic Society — Patient information — General orthodontic explanations used for patient education.
These references support general educational information. Your own orthodontist or dentist should advise you based on your teeth, gums, bite, medical history and treatment goals.