What to follow?
Device-specific instructions.
An ultrasonic toothbrush uses high-frequency oscillations in the ultrasound range. The term is not interchangeable with every sonic toothbrush. Technical frequency alone does not establish how well a particular device cleans in daily use or whether it suits a person better.
For training & practice ↓
Sonic and ultrasonic devices may work differently. Instructions and operating principles matter more than similar names.
All relevant surfaces need to be reached according to the instructions. Head positioning and movement are device-specific; “just hold it there” is not a universal rule.
Handling, access and regular use matter when choosing a brush. Higher frequency does not prove better decay prevention.
Sonic and ultrasonic devices may work differently. Instructions and operating principles matter more than similar names.
All relevant surfaces need to be reached according to the instructions. Head positioning and movement are device-specific; “just hold it there” is not a universal rule.
Handling, access and regular use matter when choosing a brush. Higher frequency does not prove better decay prevention.
Device-specific instructions.
Handling and credible studies.
General superiority from frequency alone.
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.
The names describe different technical ranges. Purchase decisions should consider credible evidence about the actual device and appropriate use.
No. A home toothbrush does not replace an indicated examination or professional removal of hard deposits.
The available evidence does not justify that general claim. A small older trial of an ultrasonic device cannot establish superiority for all modern products.
Not simply because of the device name. Suitable additional aids depend on the spaces between teeth and clinical findings.
Editorially suggested question to discuss with Dr Niusha Barahmand Pour:
Which brush can I use reliably, and which areas need additional care?
Finding brush choices confusing? Practical handling and your findings can help guide the decision.
Discuss suitable tooth careAppointment selection at DoctolibThe names describe different technical ranges. Purchase decisions should consider credible evidence about the actual device and appropriate use.
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.