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

Posted on October 27th, 2021

Houston dentist, Dr. Meghna Dassani at Dassani Dentistry shares medical reasons that your child’s permanent teeth may take longer to come in than other kids their age.If your child’s permanent adult teeth haven’t emerged in a timely manner, you may wonder if there is a reason to worry. Dassani Dentistry 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. 

Gender

There 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. 

Nutrition

Calcium 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 & Weight

Children 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. Dr. Meghna Dassani 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.

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About Meghna Dassani, DMD

Dr. Meghna Dassani received her initial dental training from the University of Mumbai, India, where she graduated in 1996 as Bachelor of Dental Surgery (BDS). After working as an associate for one year, she established her own practice in Mumbai, India. She successfully operated this practice for six years prior to moving to the US. When Dr. Meghna Dassani is not in the office she is at home being a mommy to her 2 beautiful girls and enjoying time relaxing with her husband. Since opening her own practice in 2011 she doesn’t have a lot of free time but when the time allows she enjoys traveling, reading, gardening, cooking, visiting with friends and family and of course SHOPPING with a Starbucks in her hand!

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