Which condition does not typically show the absence of lamina dura on radiographs?

Osteogenesis imperfecta typically does not show the absence of lamina dura on radiographs. Lamina dura is the radiopaque line seen on dental X-rays that represents the alveolar bone's outer layer, which supports the teeth. In osteogenesis imperfecta, a genetic disorder characterized by fragile bones due to defective collagen, the lamina dura can still be visible despite the other skeletal changes associated with the condition.

In contrast, conditions such as Paget's disease, hyperparathyroidism, and fibrous dysplasia often demonstrate changes in the lamina dura. For instance, in hyperparathyroidism, there can be loss of lamina dura due to changes in calcium metabolism affecting bone density. Paget's disease is associated with abnormal bone remodeling that may also result in the loss of the lamina dura. Similarly, fibrous dysplasia, which involves replacement of bone with fibrous tissue, can disrupt the lamina dura's integrity on radiographic images. Understanding these conditions helps in distinguishing their radiographic characteristics.