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When Will My Baby Start Getting Teeth?

The initial growth period for primary (baby) teeth begins in the second trimester of pregnancy (around 16-20 weeks).  During this time, it is especially important for expectant mothers to eat a healthy, nutritious diet, since nutrients are needed for bone and soft tissue development.

Though there are some individual differences in the timing of tooth eruption, primary teeth usually begin to emerge when the infant is between six and eight months old.  Altogether, a set of twenty primary teeth will emerge by the age of three.

Which teeth emerge first?

In general, teeth emerge in pairs, starting at the front of the infant’s mouth.  Between the ages of six and ten months, the two lower central incisors break through.  Remember that cavities may develop between two adjacent teeth, so flossing and tooth brushing should begin at this point.

Next (and sometimes simultaneously), the two upper central incisors emerge – usually between the ages of eight and twelve months.  Teething can be quite an uncomfortable process for the infant.  Clean teething rings and cold damp cloths can help ease the irritation and discomfort.

Between the ages of nine and sixteen months the upper lateral incisors emerge – one on either side of the central incisors.  Around the same time, the lower lateral incisors emerge, meaning that the infant has four adjacent teeth on the lower and upper arches.  Dentists suggest that sippy cup usage should end when the toddler reaches the age of fourteen months. This minimizes the risk of “baby bottle tooth decay.”

Eight more teeth break through between the ages of thirteen and twenty three months.  On each arch, a cuspid or canine tooth will appear immediately adjacent to each lateral incisor.  Immediately behind (looking towards the back of the child’s mouth), first molars will emerge on either side of the canine teeth on both jaws.

Finally, a second set of molars emerges on each arch – usually beginning on the lower arch.  Most children have a complete set of twenty primary teeth before the age of thirty-three months.  The dentists generally applies dental sealant to the molars, to lock out food particles, bacteria, and enamel-attacking acids.

How can I reduce the risk of early caries (cavities)?

Primary teeth preserve space for permanent teeth and guide their later alignment.  In addition, primary teeth help with speech production, prevent the tongue from posturing abnormally, and play an important role in the chewing of food.  For these reasons, it is critically important to learn how to care for the child’s emerging teeth.

Here are some helpful tips:

  1. Brush twice each day – The AAPD recommends a pea-sized or less amount of ADA approved (non-fluoridated) toothpaste for children under two years old, and the same amount of an ADA approved (fluoridated) toothpaste for children over this age.  The toothbrush should be soft-bristled and appropriate for infants.
  2. Start flossing – Flossing an infant’s teeth can be difficult but the process should begin when two adjacent teeth emerge.  Dahm Dental will happily demonstrate good flossing techniques.
  3. Provide a balanced diet – Sugars and starches feed oral bacteria, which produce harmful acids and attack tooth enamel.  Ensure that the child is eating a balanced diet and work to reduce sugary and starchy snacks. 
  4. Set a good example – Children who see parents brushing and flossing are often more likely to follow suit.  Explain the importance of good oral care to the child; age-appropriate books often help with this.
  5. Visit the dentist – Dahm Dental monitors oral development, provides professional cleanings, applies topical fluoride to the teeth, and coats molars with sealants.  Biannual trips to the dental office can help to prevent a wide range of painful conditions later.

If you have questions or concerns about the emergence of your child’s teeth, please contact our office.


Read what people are saying about us.

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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.

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