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Eruption of Your Child’s Teeth

The eruption of primary teeth (also known as deciduous or baby teeth) follows a similar developmental timeline for most children.  A full set of primary teeth begins to grow beneath the gums during the fourth month of pregnancy. For this reason, a nourishing prenatal diet is of paramount importance to the infant’s teeth, gums, and bones.

Generally, the first primary tooth breaks through the gums between the ages of six months and one year.  By the age of three years old most children have a “full” set of twenty primary teeth.  The American Dental Association (ADA) encourages parents to make a “well-baby” appointment with a pediatric dentist approximately six months after the first tooth emerges.  Pediatric dentists communicate with parents and children about prevention strategies, emphasizing the importance of a sound, “no tears” daily home care plan.

Although primary teeth are deciduous, they facilitate speech production, proper jaw development, good chewing habits - and the proper spacing and alignment of adult teeth.  Caring properly for primary teeth helps defend against painful tooth decay, premature tooth loss, malnutrition, and childhood periodontal disease.

In what order do primary teeth emerge?

As a general rule-of-thumb, the first teeth to emerge are the central incisors (very front teeth) on the lower and upper jaws (6-12 months).  These (and any other primary teeth) can be cleaned gently with a soft, clean cloth to reduce the risk of bacterial infection.  The central incisors are the first teeth to be lost, usually between 6 and 7 years of age.

Next, the lateral incisors (immediately adjacent to the central incisors) emerge on the upper and lower jaws (9-16 months).  These teeth are lost next, usually between 7 and 8 years of age.  First molars, the large flat teeth towards the rear of the mouth then emerge on the upper and lower jaws (13-19 months).  The eruption of molars can be painful.  Clean fingers, cool gauzes, and teething rings are all useful in soothing discomfort and soreness. First molars are generally lost between 9 and 11 years of age.

Canine (cuspid) teeth then tend to emerge on the upper and lower jaws (16-23 months).  Canine teeth can be found next to the lateral incisors, and are lost during preadolescence (10-12 years old).  Finally, second molars complete the primary set on the lower and upper jaw (23-33 months).  Second molars can be found at the very back of the mouth, and are lost between the ages of 10 and 12 years old.

What else is known about primary teeth?

Though each child is unique, baby girls generally have a head start on baby boys when it comes to primary tooth eruption.  Lower teeth usually erupt before opposing upper teeth in both sexes.

Teeth usually erupt in pairs – meaning that there may be months with no new activity and months where two or more teeth emerge at once.  Due to smaller jaw size, primary teeth are smaller than permanent teeth, and appear to have a whiter tone.  Finally, an interesting mixture of primary and permanent teeth is the norm for most school-age children.

If you have questions or concerns about primary teeth, please contact your pediatric dentist.

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"Dr. Bohlke deserves more than 5 stars. He has been my dentist for the past 18 years and I can say there has never been a bad experience. His attention is always on the patient and the patient's comfort. He is so gentle that I usually have no pain at all. He clearly knows you individually and you can tell that you are getting an excellent level of dental work as well as the high level of genuine care. I just wish I had more family members so that I could insist they all see him."

Julie Johnson Anaheim, California

"I moved out to Long Beach from Michigan and for about a year I would still fly home to see my dentist, as I was paranoid to try a new one. WELL... I needed something done that would take more than one visit and my dentist in Michigan said I would need to find someone in Long Beach to handle it. I was sad... and very nervous. However, after meeting once with Dr. Bohlke, I was completely put to ease, and I no longer have to fly home for cleanings.

The office is very clean, organized, quiet and peaceful... the perfect combo for a dental office. Dr. Bohlke takes great care and time with his patients, and his assistant Nicole is just the sweetest ever. I look forward to my visits and HIGHLY recommend Dr. Bohlke for all dental needs."

Brittany Poston Long Beach, California

"I just changed my insurance companies and had to find a new dentist, and was lucky to find Dr. Bohlke. He is the most informative, attentive dentist I have ever had the pleasure of being a patient of. You do not feel like you are just another number and being pushed in and out the door. He takes his time, which I love, as he is a perfectionist. He takes great care in making sure that his patient's experience is the best possible. I have been in to see him twice and my son has seen him once, and I can tell you even after the first visit I felt complete trust with him. He will not recommend work you don't need. Love him!"

Julie Monical Long Beach, California

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