Root canal filling
- Last Updated on Sunday, 27 November 2011 17:31
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The entire endodontic treatment, from diagnosis through instrumentation, is a so called prelude to the last step - The root canal filling. The filling of the canal visually displays the preceding work that have led to the completion of the root canal therapy. With the filling the root canal is sealed to prevent reinfection.
Various techniques are known today to fill the root canal. All share the principle, to fill the space created while the treatment with a stable, biocompatible and insoluble material. until just before the apex.
The ideal root filling should
- fill the entire root system completely,
- not shrink,
- seal without any voids,
- be biocompatible,
- be easily inserted and removed when needed.
None of the known techniques meets all requirements. One of them represents increasingly the gold standard. Here, the root canal is filled with a warm and plastically deformable filling material ( gutta-percha ) in small layers. By moderate pressure using special instruments, it is placed into the canal and adapts to the irregularities of the root walls. A small amount of slightly liquid paste, the sealer, evens out irregularities and fills, in the ideal case, hidden side canals.
This complex method requires maximum accuracy in the previous steps of treatment, and special equipment.