accessibility ACCESSIBILITY

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 dentist approximately six months after the first tooth emerges.  

Although primary teeth eventually fall out, 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 or infant toothbrush to reduce the risk of bacterial infection.  

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.  Primary 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).  Primary 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). Primary 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 our office.


Read what people are saying about us.

read more


After many years of being self-conscious about my smile due to an overbite and overlapping teeth, I decided to have a consult about having braces (preferably Invisalign). Due to all the correction needed, wire braces were my only option. After 5 years of various correction procedures I am now proud of my smile. Dr. Jeff and the staff were always prompt and very encouraging during each visit.

~Sandy V.S.

I had an appointment this morning for a crown prep. I was seated a few minutes before my actual appointment time. I was seen immediately by the assistant who prepped me for my local anesthetic. The anesthetic was given gently and painlessly. When I was thoroughly numb the procedure was started and finished in a shorter time than I had thought it might be. I was happy with all the services I received. Everyone from office staff to those assisting and performing the services were courteous and efficient. Dr. Dahm was his usual friendly professional self. I would recommend this dental practice to anyone needing dental care.

~Sue S. (October 2016)

I know, through my own work experience, that working with the public can be trying at times, and sometimes it is difficult not to fall into a "negative" mode, which really does none of us any good. I am not sure whether a "negative" atmosphere shows its face when dealing with people, as much as a "positive" atmosphere does, or not. I am inclined to think not, but anyway, I would like to say that I am proud of everyone in your office, for creating and keeping that "positive" atmosphere, for all of us patients, because it truly does make a difference in the way we feel while we are there, and when we leave the office. I don't ever remember giggling several times during a dentist appointment, but couldn't help myself yesterday morning, as Dr. Dahm moved through the office, greeting, reassuring, and caring for people. The girls who helped me through the x-rays, molds, and other necessary procedures were awesome, as well! "Good Job", "You're doing great", etc., while in a place where most people are a little uncomfortable, at best, is so nice to hear. And, when I was confused about just where in my mouth my filling would go, the girls were so kind in explaining that they really were going to work on the correct tooth. LOL! I am running on here, but I think too often in business, the main feedback that people get, is the negative stuff. I have always tried to counter that, by letting people know when I really do appreciate what they have done "for" me, instead of "to" me, and I will be the first to admit that trust does not always come easy for me - just the way I am. And, I feel that an establishment's "true colors" show in instances like I had yesterday, when I needed some reassurance that everything was okay. I am so appreciative of the way everyone handled that (sorry that I took up precious time), but now I know, that if/when I truly do need help, it will be there, and given in a kind and understanding manner. That means a LOT to me! So, in closing, in the middle of the night, during my usual "awake" time, I just kept thinking WOW! I just don't know of a better way to express my feelings! And, of course, THANK YOU to everyone in that office, because it takes every person in an environment like that to maintain a caring and positive atmosphere! I notice and I appreciate all of it, and I would recommend anyone I know to become a patient there!

Pam B.

View More

Contact Us.We encourage you to contact us with any questions or comments you may have. Please call our office or use the quick contact form.