Space Maintainers

Space maintainers: protecting room for permanent teeth

Baby teeth do more than chew. They also help preserve the path and space for permanent teeth still developing underneath. If certain baby teeth are lost too early, neighboring teeth can drift into the opening. A space maintainer is a small appliance used in selected cases to hold that space until the permanent tooth is ready to erupt.

Educational content only. Your child's diagnosis and treatment plan require an in-person dental evaluation.

Reviewed by Dr. Gabriela Asensi, DMD, MPH · Last updated September 22, 2026

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SmileWorks places both fixed and removable space maintainers at our Tallahassee office. Not every early lost tooth needs one; the decision depends on which tooth was lost, how early, the child's age, the space already available, the position of the permanent tooth, and the overall bite. Because pediatric dentistry and orthodontics share one team here, space questions get both perspectives.

Not every early lost tooth needs a space maintainer

The decision depends on which tooth was lost, how early it was lost, the child's age, how much space is already available, the position of the permanent tooth, and the overall bite.

That means the answer after an extraction is not automatically "space maintainer." Sometimes observation is appropriate. Sometimes preserving the space is important.

Why space can disappear

Teeth naturally respond to forces in the mouth. After a primary molar is lost, nearby teeth may tip or drift. If enough space closes, the permanent successor can have less room to erupt normally.

Fixed and removable designs

Many pediatric space maintainers are small fixed metal appliances cemented to one or more teeth. The exact design depends on where the missing tooth is and whether one or both sides of the arch are involved. Because a fixed appliance stays in place, children do not need to remember to put it in every day.

We also place removable space maintainers for selected children, for example when several teeth are missing or when a removable design fits the child's stage of development better. The dentist explains which type is recommended and why.

Living with a space maintainer

Children generally adapt quickly. Brushing around the appliance is important, and sticky foods that can loosen bands should be limited. If the appliance becomes loose, bent, or uncomfortable, call the office rather than waiting for the next checkup.

We check the appliance at each preventive visit and remove it when the permanent tooth is close to erupting.

When pediatric dentistry and orthodontics overlap

Space management is one place where SmileWorks' dual-specialty model is useful. Our pediatric and orthodontic teams can coordinate when premature tooth loss, crowding, eruption, or bite development overlap. If crowding is already visible, an early orthodontic evaluation may be the next step.

FAQ

Questions families ask

Does my child need a space maintainer after every baby tooth extraction?

No. The recommendation depends on the tooth, timing, eruption stage, and available space.

How long does a space maintainer stay in?

Usually until the permanent tooth is close to erupting or the appliance is no longer needed. The dentist monitors it at recall visits.

Can a space maintainer come loose?

Yes. If it feels loose or comes out, keep it if possible and call the office so it can be evaluated.

Does a space maintainer straighten teeth?

No. Its primary job is to preserve space. If crowding or bite problems also exist, an orthodontic evaluation may be appropriate.

Fixed or removable: which is better?

Neither is better in every case. Fixed appliances need no daily cooperation; removable designs suit some situations with several missing teeth. Your child's dentist recommends the type that fits the tooth, the age, and the child.

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