Prevention is important for ones health status because if someone is not participating in a certain act it cannot harm or do good to them .
A X-Ray is to show any bone in the human body but only particularly 1. X-rays are faster to do and what they are for is to show a fracture or broken bone that will need to get treated to heal the broken or fractured bone. a CT scan takes a series of X-ray images taken from different angles around your body and uses computer processing to create cross-sectional images (slices) of the bones, blood vessels and soft tissues inside your body. a MRI scan is to look at organs and structures inside your body. Health care professionals use MRI scans to diagnose a variety of conditions, from torn ligaments to tumors.
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From what I found, it mostly causes tooth discoloration, but no real tooth decay / rotting / etc.
If you are worried though I suggest contacting your doctor and dentist! That is the best route to go, since medications affect everyone different!
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