Dental OSCE (Objective Structured Clinical Examination) Practice Exam

What is a distinguishing feature of cementoblastomas upon examination?

1. Painless with intact PDL

2. Cortical expansion present

3. Typically asymptomatic

4. Presence of significant mobility

The correct answer is: Cortical expansion present

Cementoblastomas are characterized by their distinctive behavior and radiographic features. One of the hallmark features is the presence of cortical expansion. This is due to the growth of the tumor associated with the roots of the affected teeth, which can lead to expansion of the surrounding bone. This expansion is a direct result of the aggressive nature of the tumor as it grows, pushing against the cortical plate. The distinction of cementoblastomas is important to recognize in clinical practice, as this feature can aid in differentiating them from other lesions that may not demonstrate the same degree of expansion. While features such as being typically asymptomatic or having pain may also be associated with cementoblastomas, the cortical expansion is a more definitive characteristic that is readily observable during examination and imaging. It also helps guide further diagnostic and treatment approaches.