What is absent?
The developing germ of one or more teeth.
← All explanationsHypodontia
What does a missing tooth germ mean?
In hypodontia, teeth are absent because their tooth germs did not form. This differs from tooth loss or delayed eruption. Examination and justified, age-appropriate imaging guide diagnosis and planning during development.
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Never formed rather than lost later
In hypodontia, the tooth germ is absent. However, a tooth not yet visible in the mouth is not automatically missing developmentally; it may still be within the jaw.
Assess development carefully
Age, baby teeth, existing permanent teeth and X-ray findings are considered together. In some people, baby teeth remain in that position for longer.
Planning follows development
Depending on the situation, teeth may be retained, spaces treated orthodontically or replacement options planned. Growth and regular review affect timing.
At a glance
How is this established?
Through developmental history, examination and justified imaging.
How is treatment planned?
Over the long term, accounting for growth, existing teeth and function.
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Often confused
Hypodontia or an unerupted tooth?
In hypodontia, the tooth germ is absent. An unerupted retained tooth formed but has not completed normal eruption.
Quick answers
Does a tooth that is not visible always mean hypodontia?
No. Eruption may be delayed, the tooth may lie displaced within the jaw, or it may have been lost earlier. These causes are distinguished.
Must a retained baby tooth be removed?
Not routinely. Its condition, root, loading and the long-term plan determine whether it can initially be retained.
Can an implant be placed immediately?
This cannot be promised generally. Growth, bone availability and the overall plan must be considered; implants are generally not a standard solution during growth.
At the practice
For your consultation
A question to discuss with Dr. med. dent. Niusha Barahmand Pour:
Which tooth germs are actually absent, and what is the long-term plan for growth and restoration?
Symptoms, examination findings and personal wishes form the basis of individual treatment planning.
Developmentally absent teeth need a plan suited to the stage of growth.
Discuss tooth developmentChoose an appointment on DoctolibLearning for dental trainees & teamsUnderstand clinical terms and build your knowledge
Build on the simple explanation with clinical terms, key distinctions and a knowledge question.
- Agenesis
- Failure of an organ or structure to form during development.
- Hypodontia
- Developmental absence of individual teeth; wisdom teeth are excluded from the usual classification.
- Oligodontia
- Developmental absence of six or more permanent teeth, excluding wisdom teeth.
Know the difference
Developmentally absent wisdom teeth are usually not counted in this classification. Not visible, not erupted and never formed mean different things.
Sources and context
Editorial research: 23 October 2026. This explanation covers general principles and does not replace a personal examination. Suitable treatment is discussed following individual assessment.