Baby Teeth

My child has no teeth, he is 9 months old. Is there a problem that I should get checked out? I worry about this because he has been so early at all the other developmental stages.
Dana Martin – Indiana

Baby Teeth

Dr. Greene’s Answer:

For an infant, the mouth is an exquisitely sensitive portal connecting the world around him to his developing mind and body. He uses his mouth to meet his mother, to sate his constant hunger, to comfort himself between feedings, and to explore objects in the widening world around him. When hard teeth begin protruding into this soft, sensitive orifice, it is a major event in the life of an infant.

Many parents worry about the timing of the appearance of their children’s teeth. While the average time for the appearance of the first teeth is between five and seven months of age, there is a wide normal variation of timing. The teeth might come in as early as one month of age, or they might wait until a child is almost one-and-a-half-years old. Anywhere in this range can be normal.

Generally lower teeth come in before upper teeth, and generally girls’ teeth erupt earlier than those of boys (much like with everything else). Delayed eruption of all teeth may be the result of a nutritional problem, such as rickets, or a systemic condition, such as hypopituitarism or hypothyroidism.

Natal teeth or teeth present at birth are found in about one out of two thousand newborn infants. These are often extra teeth, but this should be confirmed radiographically before any attempt is made to remove them. Natal teeth may cause pain to the infant, poor feeding, and, if the baby is nursing, maternal discomfort. Natal teeth may also cause damage or even amputation of the tip of the newborn’s tongue due to strong sucking behavior. Early appearance of all teeth may indicate a hormonal problem such as hyperthyroidism.

The following tables outline the normal ranges for teeth to erupt and to shed:

Eruption of Primary or Deciduous Teeth

UpperLower
Central incisors6-8 months5-7 months
Lateral incisors8-11 months7-10 months
Cuspids (canines)16-20 months16-20 months
First molars10-16 months10-16 months
Second molars20-30 months20-30 months

 

Shedding of Primary or Deciduous Teeth

UpperLower
Central incisors7-8 years6-7 years
Lateral incisors8-9 years7-8 years
Cuspids (canines)11-12 years9-11 years
First molars10-11 years10-12 years
Second molars10-12 years11-13 years

 

Eruption of Permanent Teeth

UpperLower
Central incisors7-8 years6-7 years
Lateral incisors8-9 years7-8 years
Cuspids (canines)11-12 years9-11 years
First premolars (bicuspids)10-11 years10-12-years
Second premolars (bicuspids)10-12 years11-13 years
First molars6-7 years6-7 years
Second molars12-13 years12-13 years
Third molars (wisdom teeth)17-22 years17-22 years

(Adapted from chart prepared by PK Losch, Harvard School of Dental Medicine, from Nelson’s Textbook of Pediatrics.)

If a permanent tooth becomes visible before the primary tooth above it has fallen out, generally the primary tooth should be extracted.

I hope that gives you enough to chew on!

Dr. Alan Greene

Dr. Greene is the founder of DrGreene.com (cited by the AMA as “the pioneer physician Web site”), a practicing pediatrician, father of four, & author of Raising Baby Green & Feeding Baby Green. He appears frequently in the media including such venues as the The New York Times, the TODAY Show, Good Morning America, & the Dr. Oz Show.

  1. Mrz.Rogers

    My son is almost 6 months old and he has his four bottom teeth and barely getting in his top two teeth in…. Is something wrong???

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  2. Mel

    My now 7 month old has both top and bottom bunny teeth. With more on the way. Should they be coming in so fast? He got all four in just over a month. My baby is in so much pain nothing Soothes him anymore.
    Tried cold teethers, Pediatric Tylenol and/ or Advil. Gels.. Ice..

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  3. Chanel

    Hello Dr. Green,
    My one year old has 7 teeth, with 2 bottom back teeth beginning to erupt. However, I fear she is out of eruption sequense. That doesn’t bother me as much as the fact that her left lateral incisor has not come in yet. The gums are hard there but no tooth. Should I be concerned. Should I call me pediatric dentist? Please help……

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  4. rama Kant Namdev

    Sir
    My baby boy is 11 month old and till now teeth haven’t came
    I am very nervous sir plz give the solution
    And nowadays he use to cry very loudly

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  5. dr aditi

    My daughter is 9 months old, and she has a sign of getting the upper primary teeth before the lower. I am so worried. Is this a health problem?

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  6. shanai

    My son is 8 months old and still hasn’t gotten any teeth I’m worried because my nephew is 9 months old and has 4 teeth is it a development problem?

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  7. Nirex Alyx

    Dear Dr.
    My son is 11 months old, and he has a sign of getting the upper primary teeth before the lower. I am so worried. Is this a health problem? I am waiting for your reply as soon as possible. Dr. help me.

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  8. Belachew Fekede

    Hello Dr, My daughter is six month and she is crying and pushed her mouth to my chest then, she gets pleasure and sleep. what is her problem?

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  9. Bongi

    My 9months old baby girl has started to produce Lower lateral incisors both sides, she has no other teeth.

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  10. niranjala

    My baby girl is now 14 months old, but still she doesn’t have any teeth. Should I go for a Xray.

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  11. Moses

    Dr. is there a problem if a kid at 6 months cuts upper primary teeth before the lower side?

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  12. osaji anthony

    My baby’s upper teeth came before the lower. Is that normal or there is a problem?

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  13. Kristin

    My son will be 14 months Feb 10th and is getting his molars before his incisors. Can you tell me why?

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  14. Hilda Brown

    My child don’t have any second molars well all are baby teeth and no adult teeth
    nor does she have any Wisdom teeth can you tell me why

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