What is a CT Scan ? Many people might think a CT Scan is a normal x ray, others might think is an OPG ( full mouth x ray ) or some make the confusion with the MRI Scan. In fact CT scan is different but also similar to the above options making it an extremely useful and complex way of seeing a better image in order to come up with a diagnosis. CT scan is used in all other branches of Medicine along with the MRI Scan being more useful in seeing the hard parts such as bones or c