Yes. Retainers hold your teeth in place while the bone and gum tissues adjust to their new alignment.
Minor tooth movement can begin, increasing the risk of future alignment changes.
In some cases, minor movement may be managed if addressed early. Your provider can determine the best approach.
Replacement depends on wear, damage, and the type of retainer used.
A slightly tight retainer may indicate mild tooth movement. Persistent discomfort should be evaluated.