Delayed dentition is seen in ____________
Down syndrome
Congenital hypothyroidism
Rickets
All of the above
.Abnormalities in tooth eruption (timing and sequence) is often caused by genetics and may result in malocclusion. In severe cases, such as in Down syndrome,congenital hypothyroidism & rickets , the eruption may be delayed by several years and some teeth may never erupt Reference: GHAI Essential pediatrics, 8th
Growth and development