Question

A hereditary abnormality in which there are defects in the enamel formation is:

A) Dentinogenesis imperfecta.
B) Fluorosis.
C) Enamel hypoplasia.
D) Amelogenesis imperfecta.

Answer 1

Amelogenesis imperfecta is the hereditary abnormality that causes defects in enamel formation, resulting in thin and improperly formed enamel on teeth.

Step-by-step explanation:

The hereditary abnormality involving defects in enamel formation is known as Amelogenesis imperfecta. This condition affects the development of enamel, which is the hard outer layer that protects the teeth. Amelogenesis imperfecta is characterized by the enamel being thin and improperly formed, which can lead to frequent cavities and tooth decay. Distinct from conditions such as Dentinogenesis imperfecta, which affects the dentin, or Fluorosis, which is related to high levels of fluoride exposure and not genetic, Amelogenesis imperfecta is purely a hereditary abnormality. Enamel hypoplasia can also result in defective enamel, but this can be caused by factors other than heredity, such as illness during tooth development.