Computed tomographic file

Root canal is a treatment to repair and save a badly damaged or infected tooth instead of removing it.
The term "root canal" comes from cleaning of the canals inside a tooth's root.
Decades ago, root canal treatments often were painful.

As the x-rays leave the patient, they are picked up by the detectors and transmitted to a computer. Each time the x-ray source completes one full rotation, the CT computer uses sophisticated mathematical techniques to construct a two-dimensional image slice of the patient.

This study was done to evaluate the time preparation, the risk of lateral perforation and dentine removal of the stainless steel K file and K3 rotary

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