Nickel titanium rotary file
Nickel Titanium Rotary File
Nickel Titanium Rotary File (pronunciation: nɪkəl taɪˈteɪniəm ˈroʊtəri faɪl) is a type of endodontic file used in root canal therapy. It is made from a nickel-titanium alloy, often abbreviated as NiTi.
Etymology
The term "Nickel Titanium Rotary File" is derived from the materials and function of the tool. "Nickel Titanium" refers to the alloy used to create the file, while "Rotary File" refers to the tool's function in root canal procedures, where it is used to clean and shape the root canal.
Function
Nickel Titanium Rotary Files are used in the process of endodontic therapy, specifically in the cleaning and shaping phase of root canal treatment. They are preferred over stainless steel files due to their superior flexibility and resistance to fracture.
Types
There are several types of Nickel Titanium Rotary Files, including:
- Tapered file: These files have a conical shape, with the tip being the smallest part. They are used for initial penetration into the root canal.
- Non-tapered file: These files have a uniform diameter along their length and are used for shaping and cleaning the root canal.
- Orifice opener: These files have a larger taper and are used to enlarge the canal orifice.
Advantages
Nickel Titanium Rotary Files have several advantages over traditional stainless steel files. They are more flexible, allowing for better navigation of curved root canals. They also have a lower risk of instrument fracture, which can lead to complications during root canal treatment.
Disadvantages
Despite their advantages, Nickel Titanium Rotary Files also have some disadvantages. They are more expensive than stainless steel files and require a learning curve to use effectively. Additionally, they can still fracture if used improperly or excessively.
Related Terms
External links
- Medical encyclopedia article on Nickel titanium rotary file
- Wikipedia's article - Nickel titanium rotary file
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