Fill the pulp chamber with either Glyde or Sodium Hypochlorite (NaOCl) for all initial negotiation procedures. Explore the coronal two-thirds of the canal with stainless steel Nos. 10 and 15 hand files, using a reciprocating back and forth motion. Work those instruments passively and progressively until they are loose.
Start the ProTaper sequence with S1 (purple). The apical extent of S1 will passively follow the portion of the canal secured with hand files. S1 is designed to cut dentin, in a crown-down manner, with its bigger, stronger, and more active blades. Irrigate, recapitulate with the 10K File to break up debris, then re-irrigate.
Use a manual ProTaper handle motion: a. Gently rotate the handle clockwise until it is just snug, ensuring the flutes of the file lightly engage dentin. b. Cut dentin by rotating the handle clockwise while simultaneously withdrawing the file. c. If the file becomes over-engaged, disengage it by rotating the handle counterclockwise 45-90 degrees while withdrawing the instrument to prevent further advancement into the canal. d. Repeat the handle motions until the desired length is achieved. It may require one or more passes to reach the desired depth, depending on the canal’s length, curvature, and diameter.
In more difficult canals, one, two, or three recapitulations with S1 may be necessary to pre-enlarge the coronal two-thirds of the canal. Clean the blades frequently and continue using the file until it reaches the depth of the 15 hand file. Irrigate, recapitulate, and re-irrigate.
Use a precurved No. 10K File in the presence of NaOCl or Glyde to negotiate the rest of the canal and establish patency. Determine the working length with a No. 15K File.
Once a smooth glide path to the terminus is verified, sequentially carry first S1, then S2, to the full working length. Remember to irrigate, recapitulate, and re-irrigate after each ProTaper instrument.
With the canal flooded with irrigant, work the F1 (yellow 20/07) to length in one or more passes. If the F1 ceases to advance deeper into the canal, remove the file, clear its blades, then continue using it until it reaches length. Irrigate, recapitulate, and re-irrigate.
Gauge the foramen with a 20 hand file after using F1 to length. If the 20 hand file is snug at length, the canal is shaped and ready to fill. If the 20 hand file is loose at length, proceed to the F2 and, when necessary, the F3, gauging after each Finisher with the 25 and 30 hand files, respectively.
Reviews
There are no reviews yet.
Only logged in customers who have purchased this product may leave a review.