Which of the following clinical signs is characteristic of dentinogenesis imperfecta?

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Abnormal enamel and dentin formationImpaired dentin and a pulp chamber that is obliteratedHigher susceptibility to dental cariesPresence of fewer than normal teeth (oligodontia)Normal tooth structure with discoloration

Explanation

Dentinogenesis imperfecta primarily presents with defective dentin and a pulp chamber that is often obliterated. While enamel may appear normal, the dentin abnormalities lead to characteristic clinical features. Increased caries and oligodontia are not typical findings in this condition.