Endodontic files and reamers

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Endodontic files and reamers are surgical instruments used by dentists when performing root canal treatment. These tools are particularly used to clean and shaped the root canal, with the concept being to perform complete chemomechanical debridement of the root canal to the length of the apical foramen. dvd duplicator burner

Files are commonly made from metal; usually stainless steel or nickel-titanium alloy. Files may be made from metal blanks that are twisted or machined to produce various sizes and tapers. Typical file lengths are 21mm, 25mm, 31mm. An ISO sizing system is used to describe the tip size of endodontic files. Files are usually colour coded in an ISO colour system to aid the dentist. Typically steel files have 2% tapers, but in recent years Ni-Ti files with up to 12% tapers have been popularized. dvd burner duplicator

Fracture of an endodontic file may cause the endodontic treatment to have a lower success rate. Fragments of files may be removed using a retrieval system, but this is very technically demanding, and many fragments are left in-situ without problems.

Due to the risk of prion disease transmission files should not be re-used.

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