BracesAgainasanAdult:WhyTeethShiftandWhattoDo

Yes, you can straighten your teeth again as an adult, and it is common. Teeth that shift after childhood braces, a change called relapse, can be moved back with clear aligners or braces, and a retainer plan afterward keeps them in place.

The American Association of Orthodontists (AAO) says teeth naturally move throughout life, even after orthodontic treatment. Here is why that happens and how a second round usually goes.

Why Teeth Shift After Braces

Retainer wear stopped. The AAO explains that after braces, teeth tend to return toward their original positions because nothing is holding them. Retainers give the bone and soft tissue time to remodel and then keep the teeth in place. The AAO says some retainer wear is needed for life.

Normal aging. The AAO notes that teeth can naturally shift as we age, which is one reason adults can see crowding return years after treatment.

A broken or lost retainer. A fixed retainer that comes loose, or a removable one that no longer fits, can let teeth drift without you noticing at first.

Your Options the Second Time

Option	Good for	Notes
Clear aligners	Mild to moderate relapse, adults who want removable trays	Worn 20 to 22 hours a day
Clear (ceramic) braces	Cases that need fixed, precise control	Tooth-colored brackets
Lingual braces	Adults who want braces no one can see	Placed behind the teeth

Mild relapse often suits aligners. If your bite has also changed, braces may be the better tool. Your orthodontist decides after an exam and X-rays.

Before You Start

Gum and bone health matter for adults. The AAO's answers for adults considering treatment explain that moving teeth with poor gum health can cause recession or tooth loss, and that X-rays and an in-person exam are the way to check. Avoid at-home kits that skip that step.

Keeping Them Straight This Time

A 2023 Cochrane review of 47 trials on retention after braces explains that without a retention phase, teeth tend to relapse. It compared fixed and removable retainers and found that the evidence on which type works best is low certainty, so the right retainer depends on your case and how well you will wear it. What matters most is wearing your retainer as prescribed, for the long term.

Adult Retreatment at Bloom

Most of our patients are adults. Dr. Thao Nguyen Vu and Dr. Judy Nguyen are board-certified orthodontists who plan adult retreatment at our Long Beach and Garden Grove offices. Your free consultation includes X-rays, records, and a treatment simulation, and we build a retainer plan into treatment from day one.

Learn more on our adult orthodontics page.

Frequently Asked Questions

Can I get braces again if I had them as a kid?

Yes. Adults commonly straighten teeth again after relapse, with clear aligners, clear braces, or lingual braces.

Why did my teeth move after braces?

Teeth naturally shift throughout life. Without regular retainer wear, they tend to move back toward where they started.

Will retreatment take as long as the first time?

It depends on how much the teeth moved and whether the bite changed. Your orthodontist gives you an estimate at the consultation.

How do I stop my teeth from moving again?

Wear your retainer as prescribed. The AAO says some retainer wear is needed for life.

Sources

• American Association of Orthodontists, Will I Need to Wear Retainers?
• American Association of Orthodontists, Adult Orthodontics
• American Association of Orthodontists, Orthodontists Respond to Frequently Asked Questions From Adults Considering Treatment
• Martin C, Littlewood SJ, Millett DT, et al. Retention procedures for stabilising tooth position after treatment with orthodontic braces. Cochrane Database Syst Rev. 2023.
• Bloom details: Adult orthodontics, Clear aligners

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Teeth moved since your first braces? Book a free consultation at our Long Beach or Garden Grove office.