Is Delayed Teething Genetic? What Parents Should Know

While some babies sprout their first tooth right on schedule, others take longer, leaving some parents wondering if delayed teething in kids is normal or a sign of an underlying issue. One common question is whether genetics play a role in delayed teething. This article will go over the factors that influence teething so you can know when to be patient and when to seek medical advice.

Understanding Normal Teething Timelines

Teething typically begins around six months of age, but every child is different. Some babies may start teething as early as four months, while others may not see their first tooth until after their first birthday. On average, most children will have all 20 baby teeth by the age of three.

A general teething timeline looks like this:

• 6-10 months – First teeth (bottom central incisors) appear
• 8-12 months – Upper central incisors emerge
• 9-16 months – More front teeth and lateral incisors appear
• 13-19 months – First molars come in
• 16-23 months – Canines (pointed teeth) appear
• 23-33 months – Second molars erupt

Since teething varies greatly from child to child, a delay does not always indicate a problem. However, if no teeth have erupted by 18 months, you should consult your pediatric dentist.

Genetic Factors in Delayed Teething

Genetics play a significant role in many aspects of a child’s development, including teething. If parents or close family members experienced delayed teething in childhood, there is a higher chance their child will follow a similar pattern.

Some hereditary traits that can influence teething include:

• Family History – If a parent or sibling had delayed teething, a child might as well.
• Ethnic Background – Research suggests that teething timelines may vary among different ethnic groups.
• Jaw and Tooth Development – The size and shape of a child’s jaw, which are influenced by genetics, can impact how and when teeth emerge.

If teething delays run in the family but no other health concerns are present, there is usually no need to worry. However, other factors beyond genetics can contribute to delayed teething in kids.

Other Causes of Delayed Teething

While genetics can explain some cases of late teething, other factors may also be at play. These include:

1. Nutritional Deficiencies

Calcium, phosphorus, and vitamin D are essential for strong bones and teeth. If a child is deficient in these nutrients, teething may be delayed. Breastfed babies may need vitamin D supplements if they are not receiving enough from sunlight exposure or fortified foods.

2. Premature Birth and Low Birth Weight

Babies born prematurely or with a low birth weight often experience developmental delays, including late teething. Their bodies may take longer to catch up with full-term infants.

3. Medical Conditions

Certain health conditions can contribute to delayed teething in kids, including:

• Hypothyroidism – An underactive thyroid can slow down overall growth and development.
• Down Syndrome – Children with Down syndrome often experience delays in tooth eruption.
• Osteogenesis Imperfecta – A rare genetic disorder that affects bone development, including teeth.

4. Late Bloomers

Some children are simply late bloomers with no underlying cause for their delayed teething. Their teeth may emerge later than average, but they will still develop normally.

When to Be Concerned About Delayed Teething

While some variation in teething is normal, parents should seek advice from a pediatric dentist if:

• No teeth have erupted by the time they are 18 months old
• The child has difficulty chewing or eating solid foods
• There are signs of swelling, pain, or infection in the gums
• The child’s overall growth and development seem delayed

A pediatric dentist can assess whether the delay is due to genetics, nutritional deficiencies, or an underlying medical condition. X-rays may be used to check if teeth are forming properly beneath the gums.

How Parents Can Support Healthy Teething

Even if a child’s teeth are slow to appear, parents can take proactive steps to promote their healthy oral development.

• Ensure a Nutrient-Rich Diet – Include calcium-rich foods like dairy products, leafy greens, and fortified cereals.
• Encourage Oral Stimulation – Let babies chew on safe teething toys to strengthen their gums.
• Practice Early Dental Care – Wipe the baby’s gums with a soft cloth before teeth emerge and use a small toothbrush once teeth appear.

By maintaining good oral hygiene from the start, parents can set the stage for strong and healthy teeth.

In most cases, delayed teething in kids is nothing to worry about, especially if there is a family history of late teething. However, if your child’s teeth are significantly delayed or there are other concerns, it is always best to consult a pediatric dentist.

At Baker Pediatric Dentistry, we specialize in caring for children’s developing smiles. If your child appears to have teething issues, we are here to help. Schedule an appointment today to ensure your little one’s teeth are developing properly.

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