Does removing an retainer after a prolonged period of orthodontic treatment cause teeth shifting?

Hello,

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Thank you for your query. Retainers are considered an important part of orthodontic therapy as they hold or retain the teeth in the corrected positions after the treatment. In the meantime, the jaw bone and surrounding tissues get mature enough to hold the teeth there without any external assistance. After orthodontic treatment, it takes almost one year for the tissues to mature enough. Hence, the first year is crucial. After that, the patient can gradually reduce the wear time to alternate days to eventually stop the retainers. In your case, there is a very slight chance that teeth will shift which is almost negligible. The growth period is over and retainers have been there for more than nine years. All the tissues and bones would have been completely matured. So, I would suggest you to have your new retainers fabricated which can be worn for about a month and then you can gradually wear them down. I hope this has helped you. Thank you.