Dental radiography (dental x-ray) is commonly used by dentists to measure condition of dental patient's teeth, jaw placement, malignant, bone loss or cavities.X-rays are a form of high energy electromagnetic radiation which can penetrate the body to form an image on film.

Dentists commonly use bitewing x-ray to determined presence of decay in teeth or periapical x-ray to get the complete image of tooth and roots. Dentist also uses panoramic x-ray in order to see the entire structure of dental patient’s mouth. Cone beam computed tomography (CBCT) has become increasing available for use in dental offices especially treating the kids. CBCT may expose a child to less radiation dose.

American Dental Association (ADA) enforces the ALARA (As Low as Reasonably Achievable) principle for taking X-rays.X-rays radiation which is exposed to a dental patient is small. A bitewing set consisting of four X-rays exposes the patient to 22 to 51 microSv (microsievert). A panoramic x-ray exposes in the range of 5 to 25 microSv. Cone-beam X-rays result in a wide variety of exposes patients in the range of 20 microSv to as much as 700 microSv.

Dental Care Center should take appropriate steps to reduce exposure during x-ray.Use of highest speed films minimizes the radiation. Patients should be draped with a lead radiation apron before x-ray.Using thyroid shielding to patients when taking dental x-rays can reduce any risk of thyroid cancer possibility.