Mazyar Moshiri;s lecture from the AAO describes how to modify aligners and clinical pearls.
Modifications to consider to aligner
- Change attachment – changes tooth shape
- Change aligner shape – e.g. power ridge
- Change sequence of tooth movement
Aligner force should be directed perpendicular to the resultant tooth movement required
Vertical control is key
- if not can result in heavy anterior contact – curve of spee due to loss of vertical anchorage and a LATERAL OPENBITE
IF LATERAL OPENBITE CORRECT WITH
- Anterior intrusion – removal of interference
Deep bite cases should be over treated to AOBs
- Clincheck is a force delivery representation, not a virtual treatment objective
AOB cases
- Attachments on the occlusal aspect without composite, aids intrusion
Class 3
- TADs in buccal shelf region
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