FKG RaCe SApex-An-12July05 21pages (42 Slides)

Titre - 13/06/05 1

Innovation since 1931

Titre - 13/06/05 2

Part 1: RaCe« Reamer with Alternating

Cutting Edges »NiTi Instruments

RaCe NiTi Instruments from FKG, Switzerland

Titre - 13/06/05 3

Part 1: RaCe - Topics1. SafetyMemoDisc SMD2. Triangular cross section: sharp

cutting edges3. RaCe: Alternating cutting edges4. Safety tip5. Electrochemical surface treatment6. Sequences7. Clinical studies, articles

1.

2.

3.

4. 6.5.


Titre - 13/06/05 4

1. FKG SMD - SafetyMemoDisc


Titre - 13/06/05 5

1. FKG SMD - SafetyMemoDisc

8 petals: Turn and pull off Gauge: Simple, Medium, Difficult Endo Stands show the right qty

of petals to be removed Various sizes, holes, colors Exclusively from FKG


Titre - 13/06/05 6

2. RaCe Triangular Cross Section:Sharp Cutting Edges


Titre - 13/06/05 7

Better penetration Works with

minimal pressure Reduced torque 300 > 600 rpm Micromotor or

Endo Motor

2. RaCe Triangular Cross Section

Images of RaCe show constanttriangular cross section at 14, 6,

1mm from the tip


Titre - 13/06/05 8

« …independent of the taper and size tested,Profile and RaCe instruments were found to besignificantly more flexible than the otherinstruments, with RaCe files being significantlymore flexible than Profile instruments ».

E.Schäfer, A Dzepina, G DaneshBending properties of rotary nickel-titanium instrumentsOral Surg Oral Med Oral Pathol Oral Radiol Endod, 2003;96:757-763



Titre - 13/06/05 9

Improved cuttingefficiency ascompared to othercross sections

Excellent flexibility


Above: Other cross sections


Titre - 13/06/05 10

Cross section is adapted to thesmall size – « exception to rule »

Excellent flexibility Increased torque resistance

against Good cutting efficiency

considering small diameter

2. RaCe Square Cross Section #15, #20with 2% Taper


Titre - 13/06/05 11

3. FKG RaCe: Reamer withAlternating Cutting Edges:

No screw-in effect


Titre - 13/06/05 12

Alternating cutting edges Avoids screw-in effect and

blockage Excellent transport of debris Exclusively from FKG

3. FKG RaCe: Alternating Cutting Edges


Titre - 13/06/05 13

« The design of rotary files must prevent theirexcessive engagement in the canal walls, as well astheir tendency to « thread in » »

P Herrera Rillo, J Basilio Monné, M Vallés RodriguezComparacion in vitro de la deformacion producida por instrumental de

Niquel-Titanio. Analisis de las limas K3® (Kerr) y GT® (Dentsply)Endodoncia, 2004; 22(1):37-44

RaCe does not show screw-in effect

3. FKG RaCe with alternatingcutting edges


Titre - 13/06/05 14

4. FKG RaCe with Safety Tip


Titre - 13/06/05 15

Image courtesy Dr Guido Cuba Cruz

DEA U. Barcelona 2004

4. FKG RaCe with Safety Tip

First Safety Tip is grindedmechanically

Then FKG does electro-chemical polishing

Exclusively from FKG


Titre - 13/06/05 16

5. FKG RaCe: ElectrochemicalSurface Treatment


Titre - 13/06/05 17

Photos courtesy of Dr G. Cuba Cruz

5. FKG RaCe: ElectrochemicalSurface Polish

K3 is a trademark of KerrCorporation, Protaper is atrademark of DensplyMaillefer


First surface is grinded mechanically Then FKG does electrochemical polishing Exclusively from FKG

Titre - 13/06/05 18

5. FKG RaCe: ElectrochemicalSurface Treatment

Easier to clean Significantly better

resistance againstbreakage, from 2 to 10times roughly

Better resistance againstautoclaving

SEM Images before (l) and after (r)electrochemical surface

treatment of RaCe


Titre - 13/06/05 19

« …These dentin deposits were thus created duringpreparation of the root canals, and they adhered tenaciouslyin surface cracks, despite extensive ultrasonic cleaningbefore SEM examination. Consequently, it may not bepossible to remove such deposits from instruments after invivo use in the root canals of one patient before clinical useon a subsequent patient. These lodged dentin chips clearlyseem to cause a wedging action on the machining cracks,which may lead to their propagation from localized tensilestress during clinical use and eventually result in instrumentfracture… »

Alapati SB & Coll.: Proposed role of embedded dentin chips for the clinical failureof nickel-titanium rotary instruments JoE, 2004;30(5):339-341

5. RaCe: Electrochemical Surface Treatment


Titre - 13/06/05 20

Kuhn et al. (2001) very regularly observed traces frommanufacturing and other defects on the surface of newrotating NiTi instruments. Under repeated stress, thesedefects would develop into cracks which can grow andlead to breakage from fatigue or rupture stress.

Best S. & Coll. Torsional fatigue and endurance limit of a size 30 .06Profile rotary instrument. IEJ, 2004;37:370-373

5. RaCe: Electrochemical Surface Treatment


Titre - 13/06/05 21

6. Easy RaCeand

Xtreme RaCe :

Sequences


Titre - 13/06/05 22

6. Easy RaCe & Xtreme RaCe Sequences

Overview

Endo Stand Easy RaCe

Endo Stand Xtreme RaCe

RaCe „Reamer withAlternating Cutting Edges“


Easy RaCe Xtreme RaCe

Canal Simple Medium Apical Curvature Coronal Curvature

Tech-

nique Crown Down

Coronal Crown

Down, median &

apical Taper Down

Koronal Crown

Down, apikal Step

Down Step down

Step Instrument Instrument Instrument Instrument

1

Pre RaCe #40/

0.10

Pre RaCe #40/

0.10

Pre RaCe #40/

0.10

RaCe #15/

0.02

2

Pre RaCe #35/

0.08

Pre RaCe #35/

0.08

Pre RaCe #35/

0.08

RaCe #20/

0.02

3

RaCe #25/

0.06

RaCe #25/

0.02

RaCe #15/

0.02

RaCe #25/

0.02

4

RaCe #25/

0.04

RaCe #25/

0.04

RaCe #20/

0.02 --

5

RaCe #25/

0.02

RaCe #25/

0.06

RaCe #25/

0.02 --

For 75% of all canals. For very difficult cases

Titre - 13/06/05 23

6a. Easy RaCe Sequence

Easy Root Canal(simple)


Technique: Crown Down

Step Instrument Taper

Working length (WL)

about Remarks

1

Pre RaCe #40/

0.10 10% Coronal (20% of WL) Very strong taper.

2

Pre RaCe #35/

0.08 8%

Coronal to median

(40% of WL)

Strong taper.

After this PreRaCe you may use S-Apex.

3 RaCe #25/ 0.06 6% Median (60% of WL)

Medium taper, flexible enough for some

canal curvature.

4 RaCe #25/ 0.04 4%

Median to apical (80%

of WL) Relatively low taper, very flexible.

5 RaCe #25/ 0.02 2% Apical (100% of WL) Low taper, very flexible.

Titre - 13/06/05 24

6b. Easy RaCe Sequence

Medium Root Canal


Technique: Coronal Crown Down,

Median & Apical Taper Down


Working length (WL)

about Remarks

1

Pre RaCe #40/


2

Pre RaCe #35/

0.08 8%

Coronal to median

(40% of WL)

Strong taper.


3 RaCe #25/ 0.02 2% Apical (100% of WL) Low taper, extremely flexible.

4 RaCe #25/ 0.04 4% Apical (100% of WL) Relatively low taper, very flexible.

5 RaCe #25/ 0.06 6% Apical (100% of WL)

Medium taper, flexible enough for some

canal curvature.

Titre - 13/06/05 25

6c. Xtreme RaCe Sequence

Difficult Root CanalApical Curvature (AC)


Technique: Coronal Crown Down, apical step down


Working length (WL)

about Remarks

1

Pre RaCe #40/


2

Pre RaCe #35/

0.08 8%

Coronal to median

(40% of WL)

Strong taper.





Titre - 13/06/05 26

Due to the coronal curvature, Pre-RaCe Instruments are not being used here.

6d. Xtreme RaCe Sequence

Difficult Root CanalCoronal Curvature (CC)


Technique: Step down


Working length (WL)

about Remarks




Titre - 13/06/05 27

Availability


Référence No ISO séction Conicité Longueur (mm) / Métal EasyRaCe Xtreme RaCe

(reference) (section) (taper) partie active (mm)

(length/activ part)

(metal)

Pre -RaCe 01.710.19.040 CM 40 _ 0.10 19/9 NiTi 1st 1

st or not

01.790.19.040 CM 40 _ 0.10 19/9 AC

01.708.19.035 CM 35 _ 0.08 19/9 NiTi 2nd

2nd

or not

01.788.19.035 CM 35 _ 0.08 19/9 AC

01.706.19.030 CM 30 _ 0.06 19/10 NiTi

01.706.19.040 CM 40 _ 0.06 19/10 NiTi

RaCe 6 % 01.706.25.020 CM 20 _ 0.06 25/16 NiTi

01.706.25.025 CM 25 _ 0.06 25/16 NiTi 3rd

or 5th

01.706.25.030 CM 30 _ 0.06 25/16 NiTi

01.706.25.035 CM 35 _ 0.06 25/13.5 NiTi

01.706.25.040 CM 40 _ 0.06 25/13.5 NiTi

RaCe 4 % 01.704.25.025 CM 25 _ 0.04 25/16 NiTi 4th

01.704.25.030 CM 30 _ 0.04 25/16 NiTi

01.704.25.035 CM 35 _ 0.04 25/16 NiTi

01.704.25.040 CM 40 _ 0.04 25/16 NiTi

01.704.25.050 CM 50 _ 0.04 25/16 NiTi

RaCe 2 % 01.702.25.015 CM 15 _ 0.02 25/16 NiTi 3rd or 1 st

01.70 2.25.020 CM 20 _ 0.02 25/16 NiTi 4th or 2 nd

01.702.25.025 CM 25 _ 0.02 25/16 NiTi 5th

or 3th 5th

or 3rd

01.702.25.030 CM 30 _ 0.02 25/16 NiTi

01.702.25.035 CM 35 _ 0.02 25/16 NiTi

01.702.25.040 CM 40 _ 0.02 25/16 NiTi

01.702.25.045 CM 45 _ 0.02 25/16 NiTi

01.702.25.050 CM 50 _ 0.02 25/16 NiTi

01.702.25.055 CM 55 _ 0.02 25/16 NiTi

01.702.25.060 CM 60 _ 0.02 25/16 NiTi

Titre - 13/06/05 28

7. Clinical Studies, Articles


Titre - 13/06/05 29


7. Clinical Studies, Articles Part 1Year Study Publication Quote, results, conclusion Remark FKG

2005

Y Yoshimine, M Ono, A Akamine

Kyushu University, Fukuoka, Japan

"The Shaping Effects of Three Nickel- Titanium

Rotary Instruments in Simulated S-Shaped

Canals"

International

Endodontic Journal,

May 2005, 373 -375

"...ProTaper files showed a tendency to ledge or zip

formationat the end-point of the preparation...

...These results indicate that nickel-titanium file systems

including less tapered, more flexible instruments, like K3 and

RaCe should be used in the apical preparation of canals with

a complicated curvature."

2005

Samantha Rangel, Renato Cremonese,

Federal University of Rio Grande do Sul, Porto

Alegre, Brazil; Susan Bryant, Paul Drummer,

College of Medicine, Cardiff University, UK

"Shaping Ability of RaCe Rotary Nickel-

Titanium Instruments in Simulated Root

Canals"

International

Endodontic Journal,

June 2005, 460 -

463

"...four different shapes were prepared with RaCe rotary

nickel-titanium instruments in a crowndown approach....

Overall, mean preparation time to size 40, .02 taper was 1.36

min.

Under the conditions of this study, RaCe...prepared

simulated canals rapidly and successfully, with little change

in working length and with few aberrations or instrument

deformities."

2005

F Paqué, U Musch, M Hülsmann

University of Göttingen, Germany

Comparison of root canal preparation using

RaCe and ProTaper rotary NiTi instruments

International

Endodontic Journal,

2005,: 38: 8-16

"Both NiTi systems maintained cuvature well."

"For debris...there was no significant difference."

"For smear layer...RaCe performed significantly better in the

apical region."

Abstract and article:

http://www.blackwell-

synergy.com/links/doi/10.1111/j.1365-

2591.2004.00889.x/abs/

2005

FM da Silva, C Kobayashi, H Suda

Analysis of forces developed during mechanical

preparation of extracted teeth using RaCe

rotary instruments and Profiles.

International

Endodontic Journal,

2005,: 38: 17-21

"...torque and vertical load obtained with RaCe instruments

were lower than that obtained with ProFiles."




2591.2004.00890.x/abs/

2004

E. Schäfer, M. Vlassis

Comparative investigation of two rotary nickel-

titanium instruments: ProTaper versus RaCe.

Part 1. Cleaning effectiveness and shaping

ability in serverely curved root canals of

extracted teeth.

International

Endodontic Journal,

2004; 37:239-248.

"For debris removal, RaCe achieved significantly better

results than ProTaper instruments."

"RaCe instruments maintained the original canal curvature

significantly better than ProTaper instruments."

"Under the conditions of this study, RaCe instruments

resulted in relatively good cleaning and maintained the

original canal cuvature significantly better than ProTaper

did."




2885.2004.00783.x/abs/

Titre - 13/06/05 30


7. Clinical Studies, Articles Part 2

Titre - 13/06/05 31

Part 2: S-Apex

NiTi Instrumentwith

Inverted Taper

FKG S-Apex: NiTi Instruments with invertierted Taper

Titre - 13/06/05 32

Part 2: S-Apex - Topics S-Apex Design Concept of S-Apex Apical Stop with S-Apex Sequence with S-Apex S-Apex: Who? When? Advantages of S-Apex


Titre - 13/06/05 33

Inverted Taper Cylindrical root canal preparation Controlled breakage point 16mm from the tip Can be easily removed in case of breakage Exclusively from FKG

1. S-Apex Design


Titre - 13/06/05 34

Rotating application Breakage – easy removal

2. Concept of S-Apex (1)


Titre - 13/06/05 35

After establishment of „Glide path“ S-Apex prepares a cyclindric

tunnel shape In this tunnel, the tip of the

following instrument can turnfreely if it is choosen 1-2 sizessmaller

Active cutting edge at tip



Titre - 13/06/05 36

A. The tip of the followinginstrument can turn freely if it ischoosen 1-2 sizes smaller

B. Improved irrigation A. B.



Titre - 13/06/05 37

Ø 15 bis 40Max gauge:27 (= Ø 40)

Apicale Stop or apicalBox (Dr. M. Trope) may

be > 40

S-Apex

3. Apical Stop with S-Apex


Titre - 13/06/05 38

Pre-RaCe® RaCe®S-Apex®

Recap

S-Apex is used after coronal preparation,before apical preparation

4. Sequence with S-Apex (1)


Titre - 13/06/05 39

Example of sequence using S-Apex instruments

4. Sequence with S-Apex (2)


Titre - 13/06/05 40

S-Apex can be combined easily with any system Ideal to improve the safety when using rotating NiTi For root canals with oval or flat shape, not round For difficult canals – if S-Apex breaks, the fragment

may be removed easily

5. S-Apex: Who? When?


Titre - 13/06/05 41

Enlargement of the apical diameter. Preparation of a space, in which the following

instrument may turn freely Preparation of the apical box, better penetration of

irration liquid near apical constriction Preparation of apical stop for safe vertical GP

condensation Improved precision in gauging of apical foramen

6. Advantages of S-Apex


Titre - 13/06/05 42

FKG RaCe NiTi Instruments & S-Apex NiTi Instruments with inverted Taper

Thank you for your interest!

For additional informationplease contact our

distribution partners or FKG

www.fkg.ch

FKG RaCe SApex-An-12July05 21pages (42 Slides)

Documents