Question

Multiple congenitally missing teeth may be

characteristic of
A. cleidocranial dysplasia.
B. ectodermal dysplasia.
C. Gardner's syndrome.
D. Gorlin-Goltz's syndrome

Answer 1

Multiple congenitally missing teeth may be a characteristic of ectodermal dysplasia, a group of genetic disorders that affect the development of ectodermal structures. This can lead to missing or malformed teeth.

Step-by-step explanation:

Multiple congenitally missing teeth may be a characteristic of ectodermal dysplasia. Ectodermal dysplasia is a group of genetic disorders that primarily affect the development of ectodermal structures, including teeth, hair, nails, and sweat glands. In individuals with ectodermal dysplasia, teeth may be missing or malformed, leading to dental problems.

For example, individuals with hypohidrotic ectodermal dysplasia often have missing or unusually shaped teeth. This condition is caused by mutations in genes that are involved in the development of ectodermal structures.

Overall, multiple congenitally missing teeth can be a sign of a genetic condition like ectodermal dysplasia.