May 18, 2026

Why Haven't My Child's Permanent Teeth Come In?

If your child’s permanent adult teeth haven’t emerged in a timely manner, you may wonder if there is a reason to worry. Explorer Kids Dental would like to share a few possible reasons permanent adult teeth can be delayed . Is There Enough Space for the New Teeth to Grow? The most common reason for permanent teeth to appear late a simple one: there is just not enough space for them. Adult teeth tend to be larger than the primary baby teeth they replace, and at times, a surrounding tooth (or teeth) may require removal to create extra space. Occasionally, braces also become necessary to facilitate this process.Are Permanent Teeth Facing the Right Direction?Sometimes permanent teeth come through the gums facing the wrong way. This is most common with upper canines and bicuspids. The primary teeth around the affected area may require removal to allow repositioning of teeth that are out of place, and braces are usually required for a permanent solution.GenderThere are wide variations in every aspect of human development, and the rate that teeth grow is no exception. Girls tend to experience puberty changes before boys do, and studies also show that girls begin losing primary teeth up to six months earlier than boys lose theirs. If your firstborn was a girl and your second child was a boy, keep this in mind if you start comparing the rates their teeth develop! Genetics In 80% of cases, kids are going to take after one (or both) biological parents when it comes to their teeth—so if you needed braces or your spouse’s teeth came in late, this could happen to your child, too. There are also congenital conditions present at birth that can cause teeth to be missing. Hypodontia is when six or fewer permanent teeth are absent, and is associated with Down’s syndrome, cleft lip, and cleft palate. Having more than six permanent teeth missing is a condition called oligodontia. If a child is missing multiple adult teeth, consulting with their pediatrician to rule out medical conditions affecting the entire body is a good idea. Since each tooth serves an important purpose in the mouth, when one or more teeth are missing, it can impede the function of the overall mouth structure. Dental implants are the most commonly recommended solution for a missing permanent tooth; bridges can also be an option in certain cases. Orthodontics may also be necessary to reposition any teeth that have shifted into the wrong spot to compensate for the absent ones.NutritionCalcium and other minerals give permanent teeth the strength to push through the gums. If your child is a picky eater, you know that feeding them can be challenging—and what they eat or don’t eat can also affect the development of adult teeth. If essential nutritional components are lacking, dental delays can occur—so you may want to consider dietary changes or supplements to make sure they’re getting the essential nutrients they need.Height & WeightChildren that are heavier and taller typically develop their adult teeth before children that are shorter or have more slender body types. Heavier children, particularly girls, also tend to go through puberty at a younger age, so this goes along with the correlation between gender and earlier appearance of permanent teeth as well. Impacted Teeth If your child lost a baby tooth prematurely—for example, due to injury—the permanent teeth in their mouth may not have room to erupt.A small jaw can also complicate things.These situations can cause impacted teeth, which are teeth trapped in the jawbone that either only partially erupt or fail to emerge at all. Impacted molars are the most common, but other teeth may also become impacted. If children with missing teeth complain of jaw pain, infected or swollen gums, bad breath or recurring headaches, impacted teeth may be the problem. Extraction or oral surgery are possible solutions. Missing Teeth that Never Develop If wisdom teeth come in—and most do by the time a person turns 21—the adult mouth should, in theory, have 32 teeth. If all four wisdom teeth were extracted and no other teeth have been lost, the tally is reduced to 28. However, about 20% of the population has one or more wisdom teeth that just never showed up. Lucky for them! Failure to Launch If there is enough space in the jaw and the teeth are present in the gums but have not erupted, your child may have a rare condition called “primary failure of eruption”. It sounds dire, but the definition is “adult teeth that failed to erupt on their own.” The solution to this condition is typically a combination of oral surgery and braces to “save” the teeth in the jaw and prevent additional complications with neighboring ones. Because multiple teeth are usually involved, correction can take many treatments and several years. Drs. Jeff and Candy McComb will outline a detailed treatment plan to make each step of the process easier to understand. If you have any questions or concerns about your child’s permanent teeth coming in, we would be happy to speak with you.Contact us today !The content of this blog is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of qualified health providers with questions you may have regarding medical conditions.

Share this post

Explore more blogs

View All Posts

April 27, 2023

How we Diagnose and Treat Sensitive Teeth

Why can eating ice cream or hot soup hurt your teeth? Tooth sensitivity is a real issue for many people and can be inconvenient and frustrating.

Read More

April 13, 2023

How to Spot These 7 Dental Issues in Your Children

Having kids is an enormous job. If you're a parent wondering if your child's oral habits are normal, or if it's time to get help, read on.

Read More

March 27, 2023

10 Dental Words You Need to Know

Have you ever been sitting in the dental chair only to hear your dentist say a word you've never heard before? Here are 10 dental words you need to know.

Read More

March 16, 2023

Can People Really Have Soft Teeth?

One of these myths is having soft teeth. Let's separate dental folklore from dental facts.

Read More

February 27, 2023

Have a Mouth Sore? What is it and How to Treat it

Almost all of us have dealt with pain in or around our mouths because of a cold sore or canker sore. Here's the difference between the two.

Read More

February 14, 2023

How to Help Your Kids Fall in Love with their Oral Health

As parents, we all struggle with teaching our children daily routines. Here are solutions to make oral hygiene a habit.

Read More

January 27, 2023

Should I be Concerned about My Bad Breath?

Bad breath happens to the best of us. How do you know when it's just a job for some mouthwash and gum, or if it's a sign of something more serious?

Read More

January 13, 2023

Everything You Want to Know About Teeth Whitening

Teeth whitening is a popular cosmetic procedure that can boost confidence, eliminate stubborn stains, and give you a look that really shines.

Read More

December 27, 2022

Is Sedation Dentistry Right for You?

About 30-40 million people a year avoid the dentist due to anxiety and fear. Many dentists help patients feel comfortable through sedation dentistry.

Read More

December 13, 2022

Guilt Free Advice for Great Pediatric Oral Health

Parenting is no joke. Here is some guilt-free advice from Explorer Kids Dental for great pediatric oral health.

Read More

November 27, 2022

How to Keep Your Teeth Healthy and Happy this Holiday Season

The holidays are upon us! With the overwhelming amount of sugar plums and Christmas cookies, how can you keep your teeth healthy?

Read More

November 15, 2022

Healthy Teeth for the Holidays

When sugary treats are available around every corner, what can you do to keep your teeth healthy? Here are tips for the holiday season.

Read More