Yes, dental x-rays are safe and necessary. Many people might be concerned with radiation that is emitted from x-rays, but it is a very minimal amount. You will be provided with a lead apron to protect your chest and throat from any damage. X-rays help both your hygienist and dentist to form an accurate, in-depth image of your oral health and identify anything amiss before it becomes serious. X-rays are usually taken at the start of your appointment.