The Niti rotary files have become the standard for the prepration of the root canal system because of their superelasticity they cause less canal transportation however shaping ability and resistance to cyclic fatigue fracture are of the special significance when evaluating the performance of Niti files .The shaping ability of Niti files depend on several factors such as taper,geometrical cross section,movement file system and alloy microstructure Protaper Next File the newest to the protaper system which is the efficient solution for endo practitioner who seeking a versatile flexible system that will handle the vast majority of root canal treatment

1. Protaper Next file
Done by:-
Dr. Sarah Al-Khateeb

2. Contents
 Protaper Universal
 Protaper Next
 PTN in Obturation
 PTN in Retreatment

3. Root canal shaping is considered an essential step in endodontic
treatment .According to Schilder the preferred shape of the canal after
mechanical shaping is a tapering funnel following the original shape and
curvature of the canal

4. Protaper Universal
A unique feature of the protaper files in each instrument has
changing percentage tapers over the length of its cutting blades
. This progressively tapered design serves to significantly
improve flexibility , cutting efficiency and safety

5. Another feature of the protaper instruments relates to their convex ,
triangular cross section which enhance the cutting action while
decreasing the rotational friction between the blade of the file and
dentin

6. Also protaper files have a changing helical angle and pitch over
their cutting blades which reduces the potential of an instrument
from screwing into the canal

11. Protaper next files
Is the newest innovation to the PROTAPER system , which has been the
gold standard in endodontics for many years
It is an efficient solution for endo practitioners seeking a versatile ,
flexible system that will handle the vast majority of root canal treatments

12. Like Protaper Universal , Protaper next rotary files feature variable
taper performance but adds an off-centered, rectangular cross section
for increased file strength

13. Unlike Protaper Universal concentric core that creates symmetric
rotary motion ,Protaper Next features a patented off center ,
rectangular core that adds greater strength as the file tracks down the
canal

14. The Protaper next generation consists of :-
 M-Wire:-
The M-Wire NiTi material improves file flexibility , increased safety and
protection against instrument fracture allowing the clinician to treat more
complex root canal systems with a high level of success

15.  Swaggering Effect :- This swaggering effect serves to
minimize the engagement between the file and dentin compared to
the action of a fixed tapered file with a centered mass of rotation

16. There are five files in the system

19. PTN in Obturation
The new patented design for Protaper Next requires fewer instruments to
complete a case . The X1 rotary file replaces the S1 and S2 Shaping files from the
Protaper Universal System . Using the Protaper Next system , all canals should be
finished with at least an X2 rotary file ; therefore there is no need for X1 sizes in
obturation.

21. The Protaper Next brand includes obturators , guta-percha and
absorbent points , however there is no Protaper Next oven . The
standard Dentsply Mailefer Thermaprep oven is the oven of choice with
Guttacore for Protaper Next obturators

22. Dentsply Sirona offer two reciprocating motors that work beautifully
with protaper next rotary file
 The promark endodontic motor

23.  X-Smart

24. PTN in Retreatment
PTN group left significantly less remnant of gutta percha than manual
group .The new offset design of the PTN and the more effective
removal of debris or gutta percha from the root canal due to the M wire
alloy might be the reason for this result

25. The retreatment procedure was carried out with the X3 (#30.07) and X2
(#25.06) of the PTN rotary instrument system according to the crown
down technique . For gutta percha removal ,PTN X3 was used in
coronal third and X2 in file in apical third with torque controlled
endodontic motor operated at speed 300rpm and a torque of 200 g

27. Conclusion
Ergonomics
Reduced risk
of file
breakage
Optimal cutting
efficiency
No risk for cross
contamination

28. Thank you

29. If you have any Question contact me on:-
Dr. Sarah Alkhateeb
Dr.Sarah Alkhateeb
Dr.Sarahalkhatib
Dr.Sarah Alkhateeb
sarahalkateeb94@gmail.com