Digital radiography (digital x-ray) is the latest technology used to take dental x-rays. This technique uses an electronic sensor (instead of x-ray film) that captures and stores the digital image on a computer. This image can be instantly viewed and enlarged helping the dentist and dental hygienist detect problems easier. Digital x-rays reduce radiation 80-90% compared to the already low exposure of traditional dental x-rays.
Dental x-rays are essential, preventative, diagnostic tools that provide valuable information not visible during a regular dental exam. Dentists and dental hygienists use this information to safely and accurately detect hidden dental abnormalities and complete an accurate treatment plan. Without x-rays, problem areas may go undetected.
Dental x-rays may reveal:
Abscesses or cysts.
Cancerous and non-cancerous tumors.
Decay between the teeth.
Poor tooth and root positions.
Problems inside a tooth or below the gum line.
Detecting and treating dental problems at an early stage may save you time, money, unnecessary discomfort, and your teeth!
Are dental x-rays safe?
We are all exposed to natural radiation in our environment. Digital x-rays produce a significantly lower level of radiation compared to traditional dental x-rays. Not only are digital x-rays better for the health and safety of the patient, they are faster and more comfortable to take, which reduces your time in the dental office. Also, since the digital image is captured electronically, there is no need to develop the x-rays, thus eliminating the disposal of harmful waste and chemicals into the environment.
Even though digital x-rays produce a low level of radiation and are considered very safe, dentists still take necessary precautions to limit the patient’s exposure to radiation. These precautions include only taking those x-rays that are necessary, and using lead apron shields to protect the body.
How often should dental x-rays be taken?
The need for dental x-rays depends on each patient’s individual dental health needs. Your dentist and dental hygienist will recommend necessary x-rays based upon the review of your medical and dental history, a dental exam, signs and symptoms, your age, and risk of disease.
A full mouth series of dental x-rays is recommended for new patients. A full series is usually good for three to five years. Bite-wing x-rays (x-rays of top and bottom teeth biting together) are taken at recall (check-up) visits and are recommended once or twice a year to depending on your individualized risk factors and oral health needs.
Who might need xrays every 6 months?
Children - Many children need X-rays every six months, depending on age, because they are highly likely to develop caries and the nerve inside their teeth is much larger than an adult. This means that a very small amount of decay can cause large problems very quickly. X-rays also help monitor tooth development.
Adults with extensive restoration work, including fillings. Previous dental work indicates high risk for new decay.
Anyone who drinks sugary sodas, chocolate milk or coffee or tea with sugar - Even mildly sugary beverages create an environment in the mouth that's perfect for decay, so anyone who drinks these beverages regularly will need to have more regular X-rays.
People with periodontal (gum) disease - Periodontal treatments may need to be stepped up if there are significant or continuing signs of bone loss.
People who are taking medications that lead to dry mouth, also called xerostomia - Saliva helps keep the acid levels (pH) in the mouth stable. In a dry mouth, the pH decreases, causing the minerals in the teeth to break down, leaving them prone to caries. Medications that can decrease saliva are those prescribed for hypertension, antidepressants, antianxiety drugs, antihistamines, diuretics, narcotics, anticonvulsants and anticholinergics.
People who have dry mouth because of disease, such as Sjögren's syndrome, or because of medical treatments that damaged the salivary glands, such as radiation to the head and neck for cancer treatment.
Smokers, because smoking increases the risk of periodontal disease.