Common causes of poorly fitted appliances
One of the most frequent causes is taking an inaccurate impression. Whether using traditional putty moulds or modern digital scans, this step is vital. If the shape of your mouth is not captured correctly, the appliance will never sit as it should.
Another issue is communication breakdown between the dentist and the dental laboratory. The dentist must ensure that the lab has precise instructions and must check that the item delivered matches what was requested. If the appliance arrives and does not fit, it should not be inserted until it is adjusted or remade. Unfortunately, some dentists move forward anyway, hoping it will settle over time.
Rushing the fitting appointment is another problem. A proper fitting includes checking the bite, confirming there are no sharp edges, and ensuring the patient is comfortable. If you are told that pain or difficulty is normal, and you should simply give it time, the underlying issue may go unresolved.
Failing to follow up is also a concern. Most appliances require a review within a short period to adjust pressure points, fine-tune alignment or respond to patient feedback. If this step is skipped, minor problems can become major ones.
In some cases, the dentist may not have taken your concerns seriously. You may have raised that the appliance was painful, unstable or uncomfortable, only to be told it was fine or that nothing could be done.
These errors may reflect a breach of your legal rights as a patient.