Dental x-rays are used to create detailed images of a patient's teeth and mouth. X-rays are often used to monitor tooth growth and development. X-rays reveal tiny pits of decay in the teeth that may not be evident during a visual examination. X-rays can also be used to detect decay under existing fillings or other dental restorations, as well as damage to such restorations and the following:

Abnormalities such as cysts, infections and both benign and malignant tumors
Bone abnormalities associated with diseases
Infection, death of the nerve or other problems associated with the teeth and bones
Injuries to the teeth or jaw (e.g., fractures)
Periodontal (gum) disease                                                                                                                   impacted teeth
Extra teeth

dental x-ray to help prepare and place dental restorations such as crowns, fillings, dental implants, and  dentures.

The gamma knife and its associated computerized treatment planning software enable physicians to locate and irradiate relatively small targets in the head (mostly inside the brain) with extremely high precision. Intense doses of radiation can be given to the targeted area(s) while largely sparing the surrounding tissues. The gamma knife can be used for a wide variety of problems. For example, it can be used to treat selected cthat arise in or spread to the brain (primary brain tumors or metastatic tumors), benign brain tumors (meningiomas, pituitary adenomas, acoustic neuromas), blood vessel defects (arterio-venous malformations) and functional problems (trigeminal neuralgia). Possible future uses are being evaluated for epilepsy and Parkinson's disease.

The gamma knife loses its ability to spare surrounding normal tissues as the number of targets increases, is not suitable for large targets (larger than three to four centimeters in size) and is not used for targets outside of the head.