# X-Ray Explained > X-rays reveal what eyes cannot. Types, safety and frequency. Includes simple steps and when to ask a dentist. ## Guides - [Bitewing vs Panoramic X-Rays](https://dental-xrays-how-often.zekajudy.workers.dev/bitewing-vs-panoramic/): Bitewing x-rays show the upper and lower back teeth together and are mainly used to look between teeth and at bone height, while a panoramic x-ray captures the. - [Radiation in Context](https://dental-xrays-how-often.zekajudy.workers.dev/x-ray-radiation-dental/): Dental x-rays use a very small dose compared with many other medical imaging tests, and everyone also receives background radiation from the environment each. - [Why Frequency Depends on Your Risk](https://dental-xrays-how-often.zekajudy.workers.dev/x-ray-frequency-risk/): The timing of dental images is meant to follow your individual likelihood of dental problems, not a one-size calendar. - [Digital X-Rays and What Changed](https://dental-xrays-how-often.zekajudy.workers.dev/digital-x-rays/): Digital x rays replace film with a sensor and a computer screen, so images appear in seconds and are easy to enlarge, store and send. - [Bringing Previous X-Rays](https://dental-xrays-how-often.zekajudy.workers.dev/bring-previous-x-rays/): If you are seeing a new dentist or a specialist, ask your previous office for copies so you can bring previous x rays with you. ## About - [About X-Ray Explained](https://dental-xrays-how-often.zekajudy.workers.dev/about/): not medical advice, how the site is funded and how guides are made ## Optional - [RSS feed](https://dental-xrays-how-often.zekajudy.workers.dev/feed.xml)