DFU ProTaper® Universal Retreatment Kit F19 02 89.X/ 04 / 2006 updated 04/2009
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DENTSPLY MAILLEFER
1338 Ballaigues
Switzerland
* In the instance of carrier removal, select the appropriately tapered ProTaper
®
Retreatment file that can
be carried sufficiently deep into the canal and lateral to the carrier. A long engagement zone will more
effectively auger the entire length of the carrier out of the canal.
Soluble Zinc oxide – Eugenol based Paste Removal
When the rotary removal method is utilized, select the lowest speed (250-300 RPM) that will
•
effectively engage and remove obturation material from the canal.
Flood the pulp chamber with the appropriate solvent (DMS IV from Dentsply Maillefer) and probe the
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canal orifice with an explorer to check if the paste has been effectively softened.
Without engaging dentin, gently press the spinning ProTaper
•
®
D1 file into the material and use a
short pecking motion to extract material out of the canal. Never engage ProTaper
®
D1 around a canal
curvature.
Remove the D1 file frequently, inspect the blades for obturation material and clean the debris from the
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flutes.
Continue with the D1 file, or the ProTaper
•
®
Retreatment file that fits passively between the dentinal
walls, until paste is removed from the coronal one-third of the canal.
Select the ProTaper
•
®
D2 file and repeat the same pecking action to extract obturation material from
the middle one-third of the canal. Use a brushing outstroke motion to remove material from the canal
walls.
When appropriate, choose the ProTaper
•
®
D3 file and, in the same way auger the more deeply
positioned paste material out of the apical one-third of the canal.
Continue with the D3 file as long as the flutes of the instrument, upon removal, are loaded with
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obturation material.
When the obturation material is short of the canal terminus, use small sized hand files in the presence
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of a viscous chelator to negotiate and secure the rest of the canal.
After assessing the glide path, select either manual or rotary NiTi ProTaper
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®
files to shape and finish
the canal.
