Dental X-ray. Dentist preparing to take an X-ray of a tooth filled during root canal dentistry. This specialist root canal dentistry, which takes 2 hours, has two stages. The first is the drilling, cleaning and disinfecting of the tooth's root canal. The second is to fill the hole with hot gutta percha gum (over 200 degrees Celsius). The temperature and the use of an injection gun ensures the gum fills all of the hole. This technique helps avoid later infection, which can result in an infected tooth that needs to be extracted, and can also cause damage to the jaw bone. The X-ray will show how successful the operation has been. For the result of the X-ray, see image M780/563.
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