Final answer:
Steroids cause avascular osteonecrosis, while bisphosphonates can cause osteonecrosis of the jaw.
Step-by-step explanation:
Steroids cause avascular osteonecrosis, a condition where bone tissue dies due to lack of blood supply. Steroids can disrupt the normal process of bone remodeling, leading to decreased blood flow to the bones and ultimately causing osteonecrosis. For example, long-term use of corticosteroids, such as prednisone, can increase the risk of avascular osteonecrosis.
Bisphosphonates can cause osteonecrosis of the jaw when used in certain medical conditions. Bisphosphonates are drugs commonly used to treat osteoporosis. However, in rare cases, they can interfere with the normal healing process in the jaw bone, leading to osteonecrosis.