DCTaper H Protocol
DC Taper Sequence by E3Endo from Patrick Caldwell
Users Guide for DCTaper H Files
Recommended speed is 150 to 400 rpm
Recommended torque limit is 450 g/cm (4.4 N/cm)
Recommended Sequence:
1Establish the initial glide path patency with #8 or #10 hand files.
2Enlarge/expand canal orifice with a DCTaperH ™ 20/06 or 25/06 rotary file going apically about 1–2 mm (D1–D2) past the orifice. The SS White Orifice Opener may be used if preferred by the clinician. An EG #2 slow speed with a light touch can also be used. Avoid using Gates Gliddens or Peeso reamers as canal orifice openers.
3Complete hand filing from #10-#15 hand file, depending on the size and shape of the canal anatomy. Next use DCTaper 13/v03 or 14/03 and DCTaperH™ 17/v04 to initiate the rotary filing sequence.
4Irrigate with NAOCL (using side vented irrigation needle) alternating with EDTA or equivalent with each pass of the next instrument and when recapitulating with hand files.
5Use lubricant with each file.
6Use each file sequentially to apical working length until desired enlargement is achieved.
7Allow files to engage and advance apically to resistance on their own – do not push or “help” them advance through resistance.
8After the file engages dentin for 1-3mm remove it and wipe dentinal debris from file flutes to enhance debris removal.
DCTaper Obturation Guide
SS White no longer produce gutta percha for the DCTaper. Gutta Percha production is not a core business for SS White and they found that few professionals were using the GP they had manufactured. As the DCTaper file follows the path of the canal so well and produces a very conservative preparation, the obturation can be a little challenging, especially in the case that the Orifice Shaper is not used.
We have found that the GP used for obturation depends very much on whether an orifice opener is used or not. Depending on your technique, we have created the following guides. These are a guide only and where the GP that is fitted ends up being slightly shorter or longer, then we recommend going down or up one size until the GP fits at the correct length.
For Canals Where an Orifice Shaper is Used
For Canals Where an Orifice Shaper is NOT Used
