INBDE (Integrated National Board Dental Examination) Practice Exam

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What condition is described by having a cotton wool appearance?

Osteosarcoma
Paget's disease
Rheumatoid Arthritis
Ankylosing Spondylitis

The correct answer is: Paget's disease

A cotton wool appearance is commonly used to describe abnormal bone changes seen on an X-ray. This appearance is seen in Paget's disease, a condition where there is excessive bone breakdown and regrowth. Paget's disease affects the normal structure and strength of your bones, and this change in appearance is due to the uneven distribution of new bone growth. This can eventually lead to pain, deformity, and other complications. Therefore, the other options are incorrect as they do not typically present with a cotton wool appearance. Osteosarcoma is a type of bone cancer that may appear as a mass or lesion, while Rheumatoid Arthritis and Ankylosing Spondylitis are both chronic inflammatory conditions that primarily affect the joints and do not typically involve abnormal bone changes.