Hagedorn needle

**Hagendorf needle** – a special dental needle used for obturation of the root canals of teeth; The first mention of this instrument was found in a publication by Thomsen in 1911. The first versions of needles were developed by the German dentist W. Hagendorf in the 20-30s of the 20th century; named after him and became widespread.

Hagendorff dental needles are distinguished by their relatively large size and resistance to all types of carious lesions at the initial stage of the disease. In dentistry, Hagenadorff needles are used for the following purposes: * medicinal filling of root spaces; * removing residual filling material; * cleaning canals and making artificial crowns (for some techniques).

While conventional needles can cause damage to soft tissue, Hagenadorf needles can preserve the structural integrity of the gums for much longer. The use of dental needles significantly reduces the risk of developing periodontitis, impregnation and the inflammatory process gradually disappear.

In modern dentistry, different types of needles are used, each of which is designed to perform certain manipulations. Each dentist should know the technology for working with these models, but more often one or more are used (or the most optimal method is selected for each patient individually). Usually this:

- canal finishing files, - H-type models with V-shaped section and sharp tip, - U-shaped or double helix-shaped instruments,

All these types are very different from each other: size, shape, strength change