What condition is indicated by opalescent teeth in an X-ray?

Opalescent teeth seen in X-rays are characteristic of dentinogenesis imperfecta, a genetic disorder that affects the development of dentin, the tissue beneath enamel. In this condition, teeth may appear translucent or opalescent due to the abnormal structure of the dentin caused by mutations in the genes responsible for producing dentin matrix proteins. This leads to teeth that are brittle, prone to wearing down, and can often have a blue or gray hue.

The other conditions listed do present with dental symptoms but do not specifically lead to the characteristic opalescence seen in dentinogenesis imperfecta. Amelogenesis imperfecta primarily affects the enamel, resulting in malformed or discolored enamel rather than issues with the underlying dentin. Fluorosis occurs due to excessive fluoride exposure during tooth development, leading to pitting and discoloration of teeth, but not the opalescent appearance. Celiac disease may impact dental health due to nutritional deficiencies associated with malabsorption, but again, it does not result in the unique opalescent tooth appearance observed in the context of dentinogenesis imperfecta.