Crooked Teeth in Children: Genetics and Future Alignment - Dentistry

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Misaligned teeth?


Hello, doctor.
My child is one year and seven months old, and the lower teeth are aligned, but the upper teeth are crooked and misaligned.
We have consulted a doctor who mentioned that there is a high probability of misalignment after the child loses their baby teeth.
I would like to know if the child's mother's upper teeth are also crooked, could it be a hereditary factor that causes the child to have misaligned teeth as well? Is there a chance that the child's teeth will grow in straight after losing the baby teeth? Thank you for your response.

Xiao Feng, 0~9 year old female. Ask Date: 2013/06/08

Dr. Zhuang Suhui reply Dentistry


Hello: During a child's growth, the bone surrounding the teeth also develops, and the alignment of the teeth may change.
Genetics can also play a role, so worrying about these issues now is somewhat meaningless.

Reply Date: 2013/06/08

More Info


Understanding crooked teeth in children is a multifaceted issue that often involves genetics, dental development, and environmental factors. It is common for parents to be concerned about their child's dental alignment, especially when there is a family history of dental irregularities. In your case, it appears that your child has straight lower teeth but crooked upper teeth, and you are wondering if this could be hereditary and whether the teeth will align properly after they grow in.

Firstly, it is important to recognize that dental alignment can indeed be influenced by genetics. If a parent has crooked teeth, there is a possibility that their child may inherit similar dental traits. Genetic factors can affect the size and shape of the jaw, the size of the teeth, and how they fit together, all of which can contribute to misalignment. However, genetics is just one piece of the puzzle. Environmental factors such as thumb sucking, prolonged use of pacifiers, and even the way a child breathes can also play significant roles in dental alignment.

Regarding your child's current situation, it is not uncommon for children to have uneven teeth as they grow. The primary teeth (baby teeth) serve as placeholders for the permanent teeth, and their alignment can change as the child grows and loses these teeth. Typically, children begin to lose their primary teeth around the age of six, and this process continues until they are about twelve years old. During this time, the permanent teeth will emerge, and their alignment may improve naturally. However, if the primary teeth are significantly misaligned, there is a chance that the permanent teeth may also come in crooked.

It is essential to monitor your child's dental development closely. Regular dental check-ups are crucial, as a pediatric dentist can assess the growth of the teeth and jaws and provide guidance on whether any intervention is necessary. If the dentist observes that the upper teeth are likely to remain misaligned, they may recommend early orthodontic evaluation. Early intervention can sometimes prevent more severe alignment issues later on.

In some cases, orthodontic treatment may be recommended as your child approaches the age of seven or eight, when the first permanent molars and incisors have typically erupted. Treatment options may include braces or other orthodontic appliances designed to guide the teeth into a more favorable position. The earlier the treatment begins, the better the chances of achieving a favorable outcome.

In conclusion, while genetics can play a role in your child's dental alignment, it is not the sole factor. Regular dental visits and monitoring of your child's dental development are essential. If concerns about alignment persist, consulting with a pediatric dentist or an orthodontist can provide clarity and options for treatment. Remember, every child's dental development is unique, and with the right care, there is a good chance that your child's teeth can align properly as they grow.

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