Before and during root canal treatment, the dentist usually takes a dental X-ray. The film shows what cannot normally be seen inside the root of the tooth.
- An X-ray shows the dentist the number and shape of roots, their length and damage around the root tip.
- A periapical film of the individual tooth is usually used for root canal treatment.
- Films are usually taken before, during and after filling the canals.
- Dental films use a low dose and are combined with the clinical examination.
The pulp of a tooth lies inside the root, so the dentist cannot see it directly. An X-ray, usually a periapical film of the individual tooth, lets the dentist see the shape and condition of the roots in order to plan safe treatment.
What does the film tell the dentist?
- The number and shape of the roots and how much each one curves, see what a tooth root is and how many roots back teeth have.
- The length of the roots, used to decide how deep to clean the canals.
- How deep the decay is and how close it is to the pulp chamber, see signs that decay has reached the pulp.
- Damage or inflammation around the root tip if present.
- Things to be careful about, such as a calcified root or a narrow canal.
How many X-rays are taken?
Usually one before treatment, one while measuring the length of the roots and one after filling the canals to check it. The number depends on how complex the case is. Dental films use a low radiation dose, see whether dental X-rays are harmful.
Does the film show everything?
The film is a two dimensional image, so small details may not be clear. The dentist combines the film with the clinical examination and your symptoms. See how panoramic and periapical films differ.
Related to root canal treatment
See also whether root canal treatment is frightening and how many visits root canal treatment takes and how long.
When should you visit Ky Hoa Dental Clinic?
Nha Khoa Ky Hoa is at 266A - 268, 3 Thang 2 Street, Hoa Hung Ward, Ho Chi Minh City. You can walk in during opening hours, or call the hotline 028.3868.1097 to ask about quieter times first if a tooth aches for a long time, so the dentist can examine it and request the right film.
Frequently asked questions
Why is an X-ray taken before root canal treatment?
The pulp lies inside the root, so a film is needed to see the number of roots, their shape, length, how deep the decay is and any damage around the root tip.
How many X-rays are taken during root canal treatment?
Usually before treatment, while measuring root length and after filling the canals. The number depends on how complex the case is.
Are dental X-rays safe?
Dental films use a low radiation dose and are requested only when needed. Pregnant women should tell the dentist before the X-ray.