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Reciprocating endodontic treatment solution

Designed to enable shaping without an initial glidepath in most cases1, Reciproc Blue facilitates root canal preparation with only one reciprocating instrument. Reciproc Blue instruments are produced with Nickel-Titanium (NiTi) that undergoes innovative heat treatment to give it increased flexibility, resistance to cyclic fatigue and it's characteristic blue color. 

The reciprocating instrument alternates between clockwise and counterclockwise rotation. A rotation of 360° is completed in several reciprocating movements. Due to the fact that the rotation in the cutting direction is larger than the reverse rotation, the instrument advances towards the apex. Reciproc Blue is a universal and flexible instrument for the majority of cases.

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Why choose Reciproc Blue?

Easy

Reciproc Blue instruments are designed to enable shaping without an initial glidepath in most cases.1

Root canal preparation with Reciproc Blue is easy to learn and easy to teach– it reduces the variety of procedural errors compared to rotary NiTi systems.2

Resistant & sterile

The original reciprocating motion with its specific angles of rotation as well as its controlled acceleration and deceleration lead to higher resistance to cyclic fatigue and a reduced risk of instrument fracture3.

Provided in sterile blisters for single use, Reciproc Blue instruments offer a reduced risk of cross contamination compared to non sterile, multiple use systems that need to be cleaned and re-sterilized.

An overuse of files is prevented thanks to the single use instrument approach.

Time

The s-shaped cross-section progresses smoothly and cuts efficiently thanks to its special design. The instrument moves without pushing, so that stress on dentin is minimized.

The root canal preparation time is reduced4. Less time for shaping means more time for disinfection and more patients treated5.

Files are made to be used for a single treatment only for constant cutting efficiency.

Flexible

The instrument progresses smoothly into the canal thanks to the heat treated NiTi alloy.

It is possible to prebend the instrument for an easier access to the canal.

The instrument follows the natural canal anatomy smoothly thanks to its blue heat treatment making the file more flexible5.

The flexibility obtained by the blue heat treatment improves the centering abilities of the instrument to reduce canal transportation5.

Root canal shaping with universal and flexible instruments

Variable taper

  • R25 for narrow canals: Prepares the root canal to a diameter of 0.25 mm with a taper of .08 over the first apical millimeters.

  • R40 for medium canals: prepares the root canal to a diameter of 0.40 mm with a taper of .06 over the first apical milimeters.

  • R50 for large canals: prepares the root canal to a diameter of 0.50 mm with a taper of .05 over the first apical millimeters.

 
Endodontic files

  • A S-shaped cross-section and non-cutting tips

  • 11 mm nickel-plated shaft, optimizing molar access

  • ISO color-coded silicone stoppers

  • Working length 21 mm, 25 mm and 31 mm and radiopaque calibration rings 

Endodontics course series

Foundational Courses

These beginner-level CE dental courses offer a comprehensive introduction to endodontics and provide the basic knowledge necessary for performing successful treatments.

Procedure-Based Courses

To ensure the success of your endodontic procedure, it is crucial to have a thorough understanding of the complexities of root anatomy. These intermediate-level CE dental courses will examine how to perform endodontic therapy on anterior, premolar and molar teeth.   

More confidence in single-visit endo

Quality canal shaping is an essential step that allows proper irrigation and correct canal obturation. Whether you are looking for a short reciprocating sequence, rotary files providing deep shape or a solution that helps you safeguarding the natural anatomy, our treatment solutions will suit your goals, supported by our latest generations of motors and apex locators. 

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Active irrigation promotes 3D cleaning and complete endodontics. Activating irrigant solution produces a surface with more opened dentinal tubules, providing better obturation of lateral and accessory canals.6 Our advanced cleaning tools can support you in achieving deep cleaning and disinfection of the root canals.

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Obturation creates the hermetical (fluid-tight) seal that prevents bacteria that resides in the oral cavity from entering into the periarticular tissue. At Dentsply Sirona, we deliver obturation solutions as part of our endodontic treatment workflows, helping deliver healthy, long-term outcomes.

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Frequently asked questions

The reciprocating movement is the most basic backwards and forwards movement that is known from hand files. Reciproc files use a very precise mechanical reciprocating movement: The instrument alternates between clockwise and counterclockwise rotation. A rotation of 360° is completed in several reciprocating movements. Since the rotation in the cutting direction is larger than the reverse rotation, the instrument advances towards the apex.

Reciproc instruments offer all the advantages attached to root canal preparation with only one instrument and the possibility to eliminate initial hand filing in the majority of cases without losing efficiency. The file design combined with its genuine motion lead to less instrument fracture1. Root canal preparation with Reciproc files is easy to learn compared to rotary systems – also for new users.

With the reciprocating technique, the instrument is advanced apically with a pecking motion in sets of three pecks. After each set of three pecks, remove the instrument, clean the flutes and irrigate the canal (see step by step card). In case of oval canals, the instruments should be used in a brushing motion to reach parts of the canal which are not reached with the pecking motion alone.

Please refer to the instructions for use for full details.

The reciprocating movement relieves stress on the instrument and, therefore, reduces the risk of cyclic fatigue caused by tension and compression. At the same time, reciprocation ensures that the instrument stays centered in the canals1.

Shaping with R25 can be done without creating an initial glide path in most of the cases1 (with SST hand files or mechanical glide path instruments) until reaching 2/3 of the estimated working length. Only then exact working length is determined using an apex locator and bringing an ISO size 10 hand instrument to full working length. In that same step, the hand instrument is also used for scouting the curvature. In case the scouting hand instrument needs to be pre-bent to reach working length or does not reach working length at all, the creation of a glide path until ISO size 15 is required. This procedure is possible thanks to the cutting efficiency of the Reciproc instruments and the centering ability of the reciprocating movement. The instrument follows the natural canal anatomy and the reciprocating motor settings ensure that the load on the instrument does not exceed its elastic limit. Thus, even if the tip of the file gets blocked in the canal, the risk of file breakage is minimized.

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Downloads

Reciproc™ Blue | Solution Guide | EN | North America
Reciproc Blue Sequence and Step-by-Step procedure
363 KB
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Original article | Tooth survival | Int. Endodontic Journal | EN
Elmaasarawi A, Mekhemar M, Bartols A. Influence of different endodontic treatment protocols on tooth survival: A retrospective cohort study with multistate analysis and group balancing. Int Endod J. 2025 Jun 13. Distributed under the terms of the creative commons attribution 4.0 International licences (CC by 4.0)
3 MB
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Reciproc® Family | Scientific Highlights - Literature Review | North America | EN
So far, more than 650 peer-reviewed scientific papers have been published on this endodontic system, with various topics of interest as shown in the figure below, making Reciproc ® family one of the most extensively studied NiTi treatment solution in the endodontic field.
399 KB
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Reciproc® Family | Scientific Highlights - Clinical Evidence | North America | EN
Peer-reviewed clinical evidence with Reciproc family: “Influence of different endodontic treatment protocols on tooth survival: A retrospective cohort study with multistate analysis and group balancing”
101 KB
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Reciproc® Family | Scientific Manual | North America | EN
This scientific manual serves as a comprehensive compilation, distilling the most significant publications on the Reciproc™ concept.
2 MB
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For instructions for use, safety data sheets, eMDR documents and more, visit our Download Center

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Expert insight on Reciproc Blue in curved canals

“The centering ability of the reciprocation motion, and the design of the RECIPROC blue instrument and its enhanced physical properties allow the RECIPROC blue to follow the path of least resistance, which is the canal, without any prior instrumentation, and to be used efficiently for the preparation of strongly curved and calcified canals without a glide path.”

Dr. Ghassan Yared; DDS, MSc, RCDC(F) Endodontist

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1. Zuolo, M.L., M.C. Carvalho, and G. De-Deus, Negotiability of Second Mesiobuccal Canals in Maxillary Molars Using a Reciprocating System. J Endod, 2015. 41(11): p. 1913-7. Based on treatment of MB2 canals of more than 300 patients. The aim was to assess the frequency in which Reciproc R25 was able to directly scout and reach working lengths in comparison with hand files. In the hand file group working length was successfully reached in 57.48%. In the Reciproc R25 group the working length was successfully reached in 85.63% of cases.

2. Based on less files in clinical sequence, easy selection of file to suite the case, no change in motor settings.

3. In comparison to a traditional rotary file system. Internal data on file. For more information contact Consumables-Data-Requests@dentsplysirona.com

4. In comparison to a traditional file system. Internal data on file. For more information contact Consumables-Data-Requests@dentsplysirona.com

5. Compared to Reciproc™

6. Kanter V, Weldon E, Nair U, et al. A quantitative and qualitative analysis of ultrasonic versus sonic endodontic systems on canal cleanliness and obturation.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011;112(6):809- 813.doi:10.1016/j.tripleo. 2011.06.002.