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- A Barbed broach is an instrument used to remove pulp tissue during endodontic(root canal) treatment.
- It is manufactured from round wires, and the smooth surface is notched to form barbs.
- The barbed broach is an extirpating, NOT an enlarging, instrument.
- The barbed broach is formed from a tapered round shaft by lifting up portions of metal of the shaft almost at a right angle to the shaft.
- These elevated barbs will engage the pulp tissue and remove it from the canal.
- In its use, the largest size broach which will fit freely – loosely – in the canal is selected.
- A broach must not engage the canal walls as it is advanced, or the pressure on the barbs will flatten them against the shaft; as the instrument is withdrawn, the barbs will then embed themselves in the walls, making it difficult or impossible to remove the broach.
- Because the barbs are “nicked” out of the shaft this is an extremely fragile instrument, and will break easily if misused.
- It must fit loosely.
- 1 Sheet of 10 Broaches.
1 Sheet of 10 Broaches.
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