Natal teeth are teeth that are present above the gum line or have already erupted at birth. These teeth are usually a baby's deciduous teeth that sprouted prematurely, or it could be a supernumerary tooth.
Delayed tooth eruption in kids can be caused due to several factors such as Down’s syndrome, malnutrition, genetic abnormalities, etc. If a baby does not have any teeth by the age of 18 months, then take your child to a dentist for an examination.
‘Pacifier teeth' is a collective term given to a bunch of teeth and gum problems that occur in your child due to overuse of pacifiers. Overuse of pacifiers for long can cause crooked teeth, misaligned teeth, disproportionate jaws, and protruding teeth. Dentists refer to this orthodontic problem as a class two malocclusion.