Digital Radiography (Digital X-Ray)
Digital radiography is the latest technology used to capture dental X-rays. Instead of traditional film, it uses an electronic sensor that records and stores images directly on a computer. These images can be viewed instantly, enlarged for detail, and help the dentist and hygienist detect problems more easily. Digital X-rays also reduce radiation exposure by 80–90% compared to conventional dental X-rays.
Why dental X-rays are important
X-rays are essential diagnostic tools that reveal conditions not visible during a standard dental exam. They allow dentists to detect hidden abnormalities and create accurate treatment plans. Without X-rays, many problems could go unnoticed.
Dental X-rays can reveal:
- Abscesses or cysts
- Bone loss
- Cancerous and non-cancerous tumors
- Tooth decay between teeth
- Developmental abnormalities
- Poor tooth and root positioning
- Problems inside a tooth or below the gum line
Detecting issues early can save time, money, discomfort, and even your teeth.
Are digital dental X-rays safe?
Everyone is exposed to natural radiation in the environment, but digital X-rays produce significantly less radiation than traditional ones. They are safer, faster, and more comfortable, reducing time in the dental chair. Since images are stored electronically, there is no need for film development or chemical waste, making them more environmentally friendly.
Even with their low radiation levels, dentists take precautions to limit exposure. X-rays are only taken when necessary, and protective lead aprons are used to shield the body.
How often should dental X-rays be taken?
The frequency depends on individual needs. Your dentist will recommend X-rays based on your medical and dental history, exam findings, age, and risk of disease.
- A full-mouth series is recommended for new patients and is typically valid for three to five years.
- Bitewing X-rays (showing top and bottom teeth together) are usually taken once or twice a year at check-up visits to detect new problems.