Missing | Extra teeth

It is normal for children to lose their final baby tooth around age 12. In most cases, when a baby tooth falls out, the permanent tooth appears soon after. However, if a baby tooth is lost and no adult tooth comes in within a reasonable time, it may be a sign of impaction, crowding, or a missing permanent tooth. At San Marcos Pediatric Dentistry, we can evaluate your child’s development and determine the cause with a dental exam and X-rays.

What Does It Mean If a Baby Tooth Falls Out but No Adult Tooth Comes In?

If a baby tooth falls out and the permanent tooth does not appear, it may indicate:

  • A tooth that is impacted (stuck and unable to erupt)
  • Crowding that blocks the eruption
  • A missing permanent tooth

A dental X-ray is the most effective way to identify the underlying condition and determine the appropriate next steps.

How Do You Confirm Whether a Permanent Tooth Is Missing?

The most reliable way to determine whether a permanent tooth is missing is through a dental X-ray. This allows the dentist to determine whether the adult tooth is developing, whether it is impacted, or whether it is absent.

What Are the Treatment Options for a Missing Permanent Tooth?

Parents often wonder what should be done when a child is missing a permanent tooth. In general, there are three possible solutions, depending on the child’s bite and spacing:

  • Preserving the baby tooth
  • Adding a replacement tooth
  • Closing the space with orthodontic treatment

Not every child is a candidate for all options, especially when crowding or bite concerns are present.

Can a Baby Tooth Be Kept If There Is No Permanent Tooth Under It?

Sometimes, the best option is to retain the baby tooth until a permanent replacement is considered. This may be possible if the baby tooth is healthy and stable.

However, if the baby tooth is decayed or has insufficient root development, retention may not be recommended.

When Is a Bridge or Implant Needed?

If the baby tooth cannot be maintained due to decay or root issues, a bridge or implant may be needed later to replace the missing tooth. Your child’s treatment plan will depend on their growth, dental development, and long-term bite stability.

Can Orthodontics Close the Space From a Missing Tooth?

In some cases, orthodontic treatment can be used to close the space left by a missing permanent tooth. However, this is not always recommended and can be challenging. If not properly managed, orthodontic closure may worsen bone or gum concerns.

When bite problems or crowding exist, closing the space after removing the baby tooth may be the best approach. This is often considered in situations involving:

  • Lower arch underbites
  • Crowding concerns

In certain cases, removing lower bicuspids or addressing upper tooth protrusion may also be considered, depending on the child’s needs.

When Is Space Closure Not Recommended?

If there are no crowding or bite problems, closing the space from a missing tooth is not typically recommended. The best option depends on how the teeth fit together and whether space closure would affect alignment and long-term function.

What If My Child Has Congenitally Missing Teeth?

Some children are missing teeth due to congenital absence, commonly involving:

  • Bicuspids
  • Upper lateral incisors

In these cases, it may be possible to close the space without implants or bridges, provided the bite and spacing permit.

How Do You Decide What Treatment Is Best?

The right treatment for a child with a missing permanent tooth depends on a full evaluation. During a comprehensive orthodontic exam, we assess:

  • Bite alignment
  • Crowding
  • Tooth positioning
  • Long-term stability

If orthodontic closure is possible, it will be offered. If not, we will guide your family through planning for eventual tooth replacement.

When Should I Schedule an Evaluation?

If your child has lost a baby tooth and no permanent tooth is coming in, or if you have concerns about spacing, eruption, or missing teeth, we recommend scheduling a consultation.

If you have questions about your child’s missing permanent tooth, the team at San Marcos Pediatric Dentistry is here to help. Contact our office today to schedule an evaluation.

Frequently Asked Questions

Tooth development does not always follow a predictable timeline. Below are answers to common questions parents have when teeth are missing, delayed, or extra teeth appear.

Yes. While there are general eruption timelines, it’s normal for children to experience variations. Some permanent teeth erupt earlier or later than expected, which is why monitoring growth over time is important.

Yes. Extra teeth can block or delay the eruption of permanent teeth, cause crowding, or affect alignment. Early identification helps prevent more complex orthodontic issues later.

Congenitally missing teeth often run in families. If a parent or close relative is missing permanent teeth, a child may have a higher likelihood of similar dental patterns.

They can. Both missing and extra teeth may impact how the teeth fit together, influence spacing, and affect jaw alignment. That’s why evaluating the bite and growth pattern is an important part of treatment planning.

Not always. Some missing teeth can be managed with orthodontic treatment alone, while others may require long-term planning for replacement. The right option depends on bite alignment, spacing, and overall dental development.