Family Forum / Parenting / Children's Health / December 2006

Possibly because he or she is too young.  Some kids don't get teeth until
they are a year old.

http://familydoctor.org/834.xml

http://kidshealth.org/parent/pregnancy_newborn/common/teething.html

Both of these say teeth start between 4 to 7 months... but I have known kids
who were later.

You should consult with your child's doctor.