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| Features and benefits: |
It is recommended to recapitulate sometimes with hand files to check the enlargement and patency of the whole working length.
It is possible to combine the HERO 642® with the SONIC AIR 1500 (or MECASONIC 1400). In specific cases (very narrow canal, ithmus), vibratory Rispisonic/Shaper will clean better and eliminate the risk of overinstrumentation of thin canal walls.
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| What are the advantages of the HERO 642® and the "crown-down" technique ? |
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1. |
Three cutting edges for a positive cutting in a curette effect (pumping motion). |
2. |
A bigger inner core for a stronger instrument and a better resistance to breakage. |
3. |
A progressive pitch/fluting reducing the screwing-in effect. |
4. |
Three variable tapers which peel the canal wall on small contact points (less risk of stalling and fracture). |
5. |
A tip which stays centered in the canal and hardly ever makes contact with the canal walls.
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6. |
No packing of the smear layer into the tubuli because of cutting edge contact. |
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| To conclude, the HERO 642® method is: |
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1. |
Simple, therefore easy to learn and assimilate. |
2. |
Secure, because the tip is kept in the centre of the canal.
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3. |
Versatile, since it can be easily combined with Sonics (MM1500 or Mecasonic MM 1400) or with hand instrumentation. |
4. |
Economical, because it requires few instruments, the cutting efficiency of which lasts longer.
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| HERO 642® are rotary instruments and have the limits of all NiTi instruments : they must be visually checked after each use and discarded as soon as they begin to unwind or present any sort of defect or deformation.
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Like for all techniques, it is recommended to practice an extracted teeth first, rather than plastic blocks which react differently and tend to provide incorrect results and feel.
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