How to avoid case revisions, part two

In last week's tech tip, we showed you a real-life case that avoided a case revision by breaking tight contacts and allowing sufficient space for movement. In this particular case, tight contacts had prevented a tooth from rotating. By breaking those tight contacts, replacing the engager using the old aligner as a template, and fabricating a new aligner, the doctor kept his patient in treatment and avoided an unnecessary case revision.

A few doctors wrote in with great questions about the troubleshooting tips shared in that tip, and we'd like to share them with you this week:

Why do you have to remove and replace the engager on the tooth that's not tracking, when the main problem preventing the rotation is the tight contact?


Our technicians recommend that you remove and replace the engager to ensure that the tooth will continue to move as originally predicted during treatment. Once an engager slips out of place, the tooth will get further and further behind in treatment until the issue is corrected. By catching this issue early and replacing the engager, you can prevent further complications down the line.

Why should you fabricate a new aligner? Can't you just break the tight contact, replace the engager, give the patient back the aligner they've been wearing, and continue on with that step?


The reason why our technicians recommend fabricating a new aligner in this situation is because the original aligner that the patient has been wearing for three weeks has lost much of its elasticity -- like a worn-out rubber band. To ensure that the rotation will be completed as predicted in the treatment plan, it is best to use a fresh aligner.

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Do you have any other troubleshooting questions, or tips of your own? Drop us a line in the comments section, and we may share it in a future tech tip!

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