When is it discussed?
When a progress review identifies a need for further correction.
Refinement is an additional correction phase using further aligners. Following a progress review, the plan may be adjusted if some tooth movements or the bite have not reached the intended position. A digital preview is a plan, not a promise of the actual result.
For training & practice ↓
The actual tooth position is compared with the treatment goal. The bite and the health of teeth and gums also matter.
Depending on the findings, new records or a scan and another aligner series may be appropriate. Movement type, biological response and appliance use can influence progress.
Further active correction is different from subsequent retention. The number, duration and cost of an additional phase are clarified for the individual treatment plan.
When a progress review identifies a need for further correction.
Current tooth position, bite, oral health and a meaningful remaining treatment goal.
The planned steps, reviews, expected work and any additional costs.
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 below.
The actual tooth position is compared with the treatment goal. The bite and the health of teeth and gums also matter.
Depending on the findings, new records or a scan and another aligner series may be appropriate. Movement type, biological response and appliance use can influence progress.
Further active correction is different from subsequent retention. The number, duration and cost of an additional phase are clarified for the individual treatment plan.
Refinement aligners continue active correction. A retainer then mainly maintains the position already achieved.
No. Planned and achieved tooth movements can differ. The reason for an adjustment must be assessed from the actual progress.
That cannot be promised generally. The scope of treatment and possible costs of another phase should be clarified in the individual plan beforehand.
Tray sequence and changes are agreed with the treating practice. Skipping trays independently is not a substitute for a progress review.
An editorially suggested question for a conversation with Dr. med. dent. Niusha Barahmand Pour:
Which specific movement is a further aligner series intended to achieve in my case?
Understanding the phases of an aligner plan helps make the next steps clearer.
Discuss an aligner planAppointment selection at DoctolibRefinement aligners continue active correction. A retainer then mainly maintains the position already achieved.
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.