Dental OSCE (Objective Structured Clinical Examination) Practice Exam

What condition is identified by obliterated pulps visible in an X-ray?

1. Dentinogenesis imperfecta

2. Amelogenesis imperfecta

3. Pulp necrosis

4. Cementogenesis imperfecta

The correct answer is: Dentinogenesis imperfecta

The condition identified by obliterated pulps visible on an X-ray is indeed related to dentinogenesis imperfecta. This genetic disorder affects the development of dentin, which is one of the main components of a tooth, leading to darker, more translucent teeth that can also appear bulbous. In dentinogenesis imperfecta, the addition of excessive or abnormal dentin formation can result in a narrowing or complete obliteration of the pulp chamber, as observed in X-rays. This can lead to various clinical manifestations, such as an increased risk of dental fractures and susceptibility to caries. The other conditions listed do not typically present with obliterated pulps in X-ray images. Amelogenesis imperfecta primarily affects enamel formation, but it wouldn't directly cause pulp obliteration. Pulp necrosis usually leads to the loss of the vital pulp tissue but doesn't specifically present as obliterated pulps in the context described. Cementogenesis imperfecta is not a widely recognized condition within dental pathology and may not relate to pulp visibility at all, focusing instead on cementum abnormalities. Understanding dentinogenesis imperfecta is crucial for accurate diagnosis, effective patient management, and treatment planning in clinical practice.