What is the difference between K file and h file?

All K-files are mainly intended for rotary motions inside the canals. On the other hand, H-files are specially designed for shaping canals after they are previously cleaned and enlarged with K-files. They are made out of the ground wire and have a tear-drop cross-sectional shape.

What are H files in endodontics?

H files, with either a cutting tip (Mani H files) or safe-ended hand files (Mani SEC-O H) are both used to grasp canal obstructions (often gutta percha but possibly separated files and/or carriers) and deliver them coronally through application of an upward force.

What are Hedstrom files used for?

Premier Hedstrom Files are used for more rapid enlargement of root canals. Note that the cutting edges are inclined backwards. The insertion is made easily since there is no cutting taking place on the insertion stroke. When the instrument is withdrawn, cutting takes place and debris is carried away from the apex.

What are K-files made of?

K-Colorinox files. They are made of high quality Swedish steel, very thin and stainless. Manufactured by torsion, it gives them a high resistance to fracture, keeping their metal fibres intact. They enlarge the root canal, either abrasively or sharply. It has an active cutting tip.

What is apical stop?

apical stop—The matrix of dentin or other materials at the apical end of a root canal preparation that prevents further advancement or progression of both endodontic instruments and obturating materials.

How does master apical determine file size?

Weine (1972) defined the master apical file (MAF) size as enlarging the apical portion of the root canal system three sizes larger than the first file that bound at working length. This was accomplished after coronal flaring of the root canal system.

Are K files stainless steel?

In the most general terms, a K file (Mani K files for example, Fig. 1A) is made from a square stainless steel blank, making it stiffer than a K flex type instrument (Examples of a K file and a flexible K file from Mani are shown in Fig. 1, above at left).

What can you do with an endodontic hand file?

Endodontic hand files can be used for initial cleaning and shaping of root canals before turning the job over to rotary or reciprocating files. They also can be used for final canal prep before obturation, and even to compact obturation materials.

What are the different types of endodontic instruments?

Classification: General classification of endodontic instruments: – Group I: Hand-operated endodontic instruments – Broaches – Files – Reamers – Group II: Non-rotary endodontic instruments used with a handpiece – Engine driven instruments – Ultrasonic and sonic instruments – Group III: Rotary endodontic instruments used with a handpiece 11 12.

What kind of files are used for root canals?

These files are most commonly available as either stainless steel files or nickel-titanium (NiTi) files. Stainless steel hand files are fabricated from strong, yet flexible steel to allow them to properly clean and shape root canals or compact obturation materials.

What are the different types of hand operated files?

14. Hand operated files: 14 K-flex files Flex-R file – Modification of K-file – Modification of K-file – Rhomboidal or diamond shaped – Cutting tip angles are reduced – Increases flexibility and cutting – It makes the file stayed more efficiency centered within the canal – Rhomboidal blanks produce alternating high and low flutes 15.

What is the difference between K file and h file? All K-files are mainly intended for rotary motions inside the canals. On the other hand, H-files are specially designed for shaping canals after they are previously cleaned and enlarged with K-files. They are made out of the ground wire and have a tear-drop cross-sectional shape.…