For whom?
Selected bite situations, often during growth.
← All explanationsFunctional orthodontics
What does a functional orthodontic appliance do?
Functional orthodontic appliances influence the interaction of tooth position, jaw posture and muscles. They are mainly used during growth. Their suitability depends on the bite, growth stage and cooperation.
For training & practice ↓
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Working together
Some appliances guide the lower jaw into a planned position during closure. This does not apply to every child with crooked teeth.
Wear and review
Removable appliances depend on the agreed wear routine. Wear times and adjustments are prescribed individually.
Further treatment
Further tooth alignment may be needed afterwards. Oral care and dental check-ups remain important throughout treatment.
Read the full explanation
Working together
Some appliances guide the lower jaw into a planned position during closure. This does not apply to every child with crooked teeth.
Wear and review
Removable appliances depend on the agreed wear routine. Wear times and adjustments are prescribed individually.
Further treatment
Further tooth alignment may be needed afterwards. Oral care and dental check-ups remain important throughout treatment.
Notes on the teaching images
- Example appliance; design and action vary between devices.
- Removable appliances: wear and reviews form part of the individual plan.
- Symbolic image: growth and further treatment steps are assessed together.
At a glance
What matters?
Findings, growth and cooperation.
What follows?
Reviews and, if needed, another correction phase.
Knowledge in motion
Explained in 36 seconds.
Three steps. No audio.
Each scene can also be selected manually.
Silent educational film with German on-screen text and simplified teaching images. Not a patient case or a promised treatment outcome. The full English explanation is available as text.
Often confused
Using growth without promising it
The appliance guarantees neither a particular amount of jaw growth nor a particular facial profile.
Quick answers
Is this the same as an aligner?
No. Its mechanism differs from a series of clear tooth-moving trays.
Does it also work in adults?
Growth-related aims cannot simply be transferred after growth has finished. Adult findings require different planning.
Does it rule out fixed braces later?
That cannot be promised. Another treatment phase may be part of the plan.
At the practice
For a personal discussion
Editorially suggested question to discuss with Dr Niusha Barahmand Pour:
Would this bite benefit from an orthodontic assessment?
An examination can clarify whether an orthodontic assessment of jaw development would be useful.
Discuss jaw developmentAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Functional appliance
- An appliance using the functional interaction of the jaws.
- Twin Block
- One example with separate upper and lower components.
- Growth stage
- A factor in treatment selection and timing.
Make the distinction
The appliance guarantees neither a particular amount of jaw growth nor a particular facial profile.
Sources and context
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.