Best Technique for for successful Rotary Endo
Coronal third preparation
1. Spend enough time to prepare adequate access without unnecessary sacrifice of healthy dentin. Remember, access is not to just locate the canal orifices, but to reach the apical third for cleaning and disinfection The risk of NiTi separation is reduced by straight-line access, coronal pre-flaring and the establishment of a glide path.
Middle third preparation
2. Determine the WL with a reliable EFL, and enlarge the canal to #20 hand K file or rotary instrument (Scout Race, Race ISO 10)
3. Choose your tapered instrument system carefully. Select a comparatively flexible system, that gives you options of taper and tip sizes. (In many cases, just one Twisted file may be enough)
4. Take the tapered instruments to WL-2mm.Apical third preparation
5. Find the smaller diameter of the root canal at the apical third and enlarge it to the larger diameter (Biologically optimal preparation)
- Only LightSpeed LSX can give the biologically optimal apical preparation
- The next best option for apical cleaning and shaping is to use rotary files with zero taper (BT-Apisafe), or .02 taper ( Race .02%).
- Alternatively, use a flexible NiTi .02 tapered hand instrument (NiTiflex) to find the first file to bind (keeping in mind that it is just arbitrary) and enlarge to three sizes beyond.
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