Tooth eruption-a general timetable of eruption of teeth.

Many parents ask me when they should expect their child’s teeth to erupt, or come in; or when will their child should lose a certain baby tooth.  Every child’s dental development is different, but there is a general time frame for the eruption and/or loss of teeth as the child develops.

In infants, the baby will usually start teething at around 6 months and the front teeth on both top and bottom jaws should appear within about 2 months.  The baby molars usually erupt at about 18 months for the first molars and then at about 2 1/2 years of age for the second molars.  Generally all of the baby teeth will have permanent teeth that will replace them later on.  This can be monitored with a panoramic xray (panorex).

After the baby teeth have erupted, nothing happens until about 6 years of age when the permanent first molars erupt.  This is followed by the loss of the anterior baby teeth and the eruption of the permanent incisors (front teeth) starting at about age 7.  Then starting at about age 11, the baby molars are lost and are replaced by the permanent bicuspids, or premolars.  At age 12, the permanent second molars start erupting and usually the baby cuspids, or eye teeth are lost and replace with the permanent cuspids.  The third molars, or wisdom teeth are the last to erupt at about age 18.

By knowing the general time frame for when teeth will be lost, or when they will erupt, parents can help their children  know what is happening and the changes that are taking place in their mouths.  If ever there is any question as to what is going on with your child’s dental development, please see your dentist.  Regular dental check ups with diagnostic xrays are the best way to keep track of the changes going on as your child grows and develops.


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A general eruption timetable to help parents know when their child should be getting, or losing teeth….

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