Why Primary Teeth Eruption Gets Delayed

Baby holding a toothbrushMost babies’ primary teeth begin to erupt when they are six months old. Unfortunately, some babies experience delayed primary teeth eruption. While this isn’t always a cause for concern, parents should bring their child to a pediatric dentist for a consultation.

When is Teeth Eruption Considered Delay?

The first two lower primary teeth usually erupt when the baby is in his 6th month of life. It is then followed by four upper primary teeth, and then another two lower primary teeth. The rest of the teeth come in following a regular schedule. In most cases, all the 20 primary teeth are present when the child is 30 months old.

The first primary teeth should erupt anytime between 4 and 15 months, according to a pediatric dentistry practice in South Bend, Indiana. Mahoney Family Dentistry notes that a child without primary teeth in his 18th month is considered to be experiencing an abnormal delay and should be seen by a dentist.

Causes of Delayed Teeth Eruption in Children

One common reason for delayed primary teeth eruption is genetic abnormalities. Some of these genetic birth defects, like Down syndrome, affect the physical development of a child, including baby teeth formation and eruption.

Thyroid and parathyroid conditions could also lead to the late eruption of primary teeth. The structure, growth, and development of the primary teeth are affected when the thyroid gland could not produce enough hormones that regulate the vitamin D levels in the body. Needless to say, vitamin D is important for strong, well-developed teeth.

On the other hand, traumatic injuries can also delay teeth eruption according to a case report in dentistry. Babies are born with their primary teeth waiting under their gums. But because their periodontal ligament is very soft and there are gaps in the bone marrow during the alveolar process, a traumatic injury can immediately alter the growth of the baby teeth inside the gums.

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You should bring your child to a dentist when no tooth erupts until your child is 18 months or when a traumatic injury happens. This way, your doctor can examine your child’s condition and schedule tests when necessary.