### Overview of Dental Diagnostic Tests Dental X-rays help dentists visualize diseases of the teeth and surrounding tissue that cannot be seen with a simple oral exam. They also help the dentist find and treat dental problems early on, which can help save you money, unnecessary discomfort, and maybe even your life. #### Types of Dental X-rays 1. **Intraoral X-rays**: The X-ray film is inside the mouth. These are the most common type and show different aspects of teeth. 2. **Extraoral X-rays**: The X-ray film is outside the mouth. These are less detailed but show the bigger picture of the jaw and skull. #### Digital Imaging A newer technique where X-rays are sent directly to a computer. Benefits include: - Immediate viewing on screen - Easier storage and printing - Reduced radiation exposure #### Frequency of X-rays This depends on your medical and dental history and current condition. Some people may need X-rays every six months, while others may only need them every couple of years. New patients often get X-rays to establish a baseline record. #### Safety Concerns While dental X-rays expose you to a small amount of radiation, advances in technology have minimized the risks. If you are concerned, talk to your dentist about the necessity and frequency of X-rays. #### High-Risk Categories People who may need X-rays more frequently include those with a history of dental or gum disease, or other risk factors. In summary, dental X-rays are a crucial tool for maintaining oral health, allowing for early detection and treatment of issues that might not be visible during a regular dental exam.