Advanced Dental Admission Test (ADAT)

Which of the following best describes Dentin Dysplasia?

1. Presence of yellow or opalescent colored teeth

2. Normal shape and color of crowns with obliterated pulps

3. Rootless teeth with multiple periapical lesions

4. Short roots and extreme occlusal wear

The correct answer is: Rootless teeth with multiple periapical lesions

Dentin Dysplasia is a genetic disorder that significantly affects tooth structure, particularly in the development of roots. The condition is characterized by the presence of rootless teeth, which means that the roots are either very short or completely absent. This leads to instability and potential mobility of the teeth, and it can also result in multiple periapical lesions due to the irregular connection of the teeth roots to the jawbone, making them more prone to infection and bone loss. The other options do not accurately represent the hallmark characteristics of Dentin Dysplasia. For instance, the presence of yellow or opalescent colored teeth typically relates to conditions like Dentinogenesis Imperfecta, while normal crowns with obliterated pulps describe a different dental issue not linked to Dentin Dysplasia. Similarly, short roots and extreme occlusal wear can occur in various dental conditions but do not specifically define Dentin Dysplasia as clearly as the rootless nature of the teeth does. Understanding these distinctions can help clarify the specific features of Dentin Dysplasia.