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Glide Path Management

There are two ways of using RECIPROC®: with and without initial hand filing to create a glide path.

The Standard Up Until Now: Initial Hand Filing to Create a Glide Path before the Use of Rotary Instruments
With continuous rotary NiTi systems it is necessary to create a glide path in order to minimize the risk of fracture. During the use of a rotary instrument, the tip of the instrument may bind in the canal. For this reason, it is necessary to create an initial glide path, or a minimal canal enlargement, before using continuous rotary instruments. The glide path will minimise the incidence of instrument binding and, therefore, minimises the risk of fracture.
Just as with any continuous rotary NiTi system, it is possible to use the RECIPROC@ reciprocating instrument after creating an initial glide path with hand instruments (e.g. C-PILOT® File) to a size 10 or 15. However, RECIPROC® and the reciprocating movement has opened a new possibility: using RECIPROC® without initial hand filing in the majority of cases.

A Paradigm Shift in Endodontics: Using RECIPROC® without Initial Hand Filing to Create a Glide Path in the Majority of Cases
Yared"The concept of using a shaping instrument without first creating a glide path with hand or mechanical glide path instruments is a completely new way of thinking, a paradigm shift. It goes against the current teaching standard which requires the creation of a glide path prior to using a rotary instrument to prevent it binding in the root canal.
In reciprocation, clockwise and counter-clockwise angles determine the amplitude of reciprocation, the right and left rotations. These angles, stored in the motor, are significantly lower than the angles at which the RECIPROC® instrument would usually fracture (if bound). When a reciprocating instrument binds in the canal, it will not fracture because it will never rotate past its specific angle of fracture. Therefore, the creation of a glide path to minimize binding is not required for the RECIPROC® instruments.
I want to introduce the notion of the path of least resistance. The reciprocation technique's centring ability together with the design of the RECIPROC® instrument and its increased cutting ability allows the RECIPROC® instrument to follow the existing and natural path of least resistance, which is the root canal. I want to take advantage of the presence of that natural path with the RECIPROC® instrument in order to eliminate initial hand filing for the creation of a glide path in the majority of cases. This is not only time-saving but also particularly convenient in teeth with limited access. Additionally, errors associated with the use of hand filing prior to using mechanically driven instruments can be avoided"
Dr. Ghassan Yared
Ontario, Canada


The creation of a glide path may be required in some cases during the use of the RECIPROC® instruments. For more information on the indication to create a glide path prior to using a RECIPROC® instrument see "Creating a Glide Path During the Use of the RECIPROC® Instruments: Indication and Management".