The radiation beam passes through your soft tissues and creates images of your teeth and bones. Dental x ray unit may be traditional (taken with film) or digital (taken with digital sensors and a computer). Handheld dental x ray unit use 80% to 90% less radiation compared to traditional dental X-ray machines.Like X-rays taken in other parts of your body, dental X-rays use electromagnetic radiation to capture images of your mouth. The radiation beam passes through your soft tissues and creates images of your teeth and bones.Handheld x ray machine dental can help your dentist detect oral health issues, like cavities and gum disease, before they worsen. There are many different types of dental X-rays, including intraoral (taken inside your mouth) and extraoral (taken outside your mouth). Dental X-rays are essential to proper oral health and maintenance.