DR POOJA GIRI

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😅 a forgotten treasure...

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K-files are more flexible and have sharper blades with non-cutting tip (blind tip). These instruments are used:

to enlarge canal after debridement;

to carry away the fragments of dentinal shavings from the root-canal walls;

for canal negotiation, shaping, and recapitulation of root-canal systems.

Blade of K-Files from stainless steel is grinded with a square section and then twisted to obtain cutting power and flexibility. K-files are used with a filing or rasping motion, excepting constant rotation of the instrument. The instrument is placed toward the apex until it binds with the tooth structure and then remove the instrument by scraping against the dentin wall. K-files advanced to the full working length rotated 1/4 to 1/2 turn clockwise, and withdrawn while being pressed against each of the walls. The process is repeated until the canal is adequately enlarged to proceed to the next size instrument. The main design feature is the lack of stiffness in negotiation of curved and calcified canals.

DR POOJA GIRI]
DR POOJA GIRI]

🔸 anatomy of mandibular dentition 🦷❤️
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