Endo Tribune U.S. No. 9, 2011
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ENDO TRIBUNE
The World’s Endodontic Newspaper · U.S. Edition
October 2011
Fig. 1: Photo of a
K-file. Note the
high number of
horizontally oriented
flutes. (Photos/Provided
by Dr. Barry Lee
Musikant)
www.endo-tribune.com
Vol. 6, No. 9
AAE invites you to
‘Jazz up your practice’
Best way
to choose
a shaping
system
By Barry Lee Musikant, DMD
Knowing the criteria for choosing
a shaping system makes it easier to
make a logical rationale choice.
The things we value in an endodontic system might include the following:
1. The ability to shape canals
thoroughly.
2. To shape without distortion.
3. To shape with little chance of
breaking an instrument.
4. To shape with minimal resistance
along the canal length.
5. To know clearly when
an impediment has been
encountered.
6. The ability to use an instrument
several times before it requires
replacement.
7. A simple system that encompasses
all the above.
Let’s examine these criteria and
see how close we can come to such a
system, knowing that it is the beneficial interaction of these criteria that
give us the advantages we seek:
1. The ability to shape canals thoroughly. This has to be the most important of all criteria, because if it is not
largely accomplished all the other
beneficial criteria will still lead to an
unacceptably high rate of failure. We
understand that thorough cleansing
means the lateral cutting surfaces of
the instruments must have the ability
to aggressively work all the axial walls
of the canals. A system confined to the
center of the canal leaves the walls
of the major diameter of oval canals
untouched. This has been a distinct
problem for rotary NiTi systems as
reported in the literature.
2. The ability to shape without distortion. In the process of preparing
all the walls of the canal, the removal
g ET page 2B
St. Louis Cathedral and the monument of Andrew Jackson are New Orleans landmarks. (Photo/David Richmond,
NewOrleansOnline.com)
Fall Conference to be held Nov. 3–5 in New Orleans
As the economy struggles to right
itself, many dentists feel a strain on
their practices. To help endodontists establish themselves as valuable treatment partners in these
challenging times, the American
Association of Endodontists (AAE)
will offer courses focused on clinical and nonclinical practice building during its Fall Conference, to
be held Nov. 3–5 (Thursday through
Saturday) in the cultural city of New
Orleans.
The meeting, which will be held
at the historic Roosevelt Hotel, offers
three half-day sessions with the
overarching theme of “Challenges
in Practice: Integrating Endodontics
Into Comprehensive Care.”
“About half of AAE members
tell us their practice volume has
decreased in the past 12 months,”
said AAE President Dr. William T.
Johnson. “Fall Conference programming will address business issues
while giving practical guidance on
how endodontists can better market
Challenges in Practice:
Integrating Endodontics Into Comprehensive Care
Earn 11.5 CE Credits!
November 3 – 5
The Roosevelt Hotel
New Orleans
Program
(Photo/Provided by AAE)
their practices to general dentists
and the entire dental community.”
Fall Conference courses will
address practice branding and outreach (consultant David Schwab,
PhD), synergistic treatment plan-
ning with referring dentists (AAE
Past President Dr. John S. Olmsted),
and methods to embrace change
through effective leadership (general practitioner Dr. Don Deems).
Clinical content will address prognosis and efficacy of surgical and
nonsurgical endodontic treatments
(Dr. Shimon Friedman) and endodontic practice in the implant era
(Dr. Richard Schwartz).
Participants have the opportunity
to earn 11.5 continuing education
credits with ample time to explore
New Orleans and engage in networking opportunities. Optional
activities include a New Orleans
tour, AAE golf tournament and an
opportunity to volunteer at a community service event that supports
the Second Harvest Food Bank of
Greater New Orleans. Volunteers
will sort and pack food donations
that will later be distributed to agencies serving those in need.
g ET page 4B
[2] =>
2B
Industry Opinion
f ET page 1B
of dentin must be equally applied,
particularly in the middle and apical
thirds. Where selective instrumentation occurs, more dentin is removed
in one area than another. This type of
selective shaping tends to straighten
the pathway of curved canals in the
apical1-2 third, often a result of the stiffness of thicker stainless steel files or
the rebound effect of NiTi instruments
as their taper and tip size increase.
We cannot eliminate distortion until
we minimize selective shaping. While
creating straight line access coronally is generally considered a productive step despite being an example
of selective shaping, when applied to
the apical and middle thirds selective shaping creates distortions in the
canal that complicate obturation while
compromising the goal of thorough
debridement.
3. To shape with little chance of
breaking an instrument. While thorough shaping free of distortion are the
two most important goals, the potential of instrument separation will have
an inhibiting effect on these two basic
goals. Knowing that greater tapers
and tip sizes are often important in
properly cleansing canals, the realization that they are also more prone to
breakage and producing canal distortions is a significant incentive to
use them more conservatively thereby
compromising our most important criteria for use.
4. To shape with minimal resistance
along canal length. Here rotary NiTi
has the ability to penetrate the full
Fig. 2: Relieved reamer
in a 30-degree reciprocating handpiece.
Tell us
what
you
think!
Endo Tribune | October 2011
to differentiate between a
tight canal and a solid wall.
When a wall is encountered
with reamers, the dentist
is aware of what is occurring, removes the instrument from the canal, places
a bend at the tip and then
attempts to manually negotiate around the impediment
using a light twist and pecking motion. It makes all the
difference in the world.
length of the canal with far
less resistance than K-files.
Unfortunately, K-files are
routinely recommended to
create the glide path that is
a requirement before the
NiTi instruments are used.
The K-files (Fig. 1) are also
poorly designed to penetrate
narrow curved canals, often
causing the distortions and
blockages that we must
avoid to produce non-distorted shaping before the NiTi
instruments are employed.
In other words, the damage
can already be done before
those instruments designed
to overcome the limits of
the K-files are used. K-files
do not meet the criteria for
canal shaping with minimal
resistance. As a result, they
compromise the second criteria of non-distorted shaping and complicate the process of thorough cleansing
that is now the responsibility of rotary NiTi. Of course,
simple cases can be cleansed
well with any system, but
the true value of a system is
determined by its ability to
handle the more complicated
situations.
6. The ability to use an
instrument several times
before replacement. For
many decades before the
arrival of rotary NiTi accepted clinical practice included
the use of endodontic instruments on multiple teeth.
Sterilization did not appreciably weaken them and the
stainless steel instruments
maintained their cutting
blades quite well. This is
still the case today. What
changed was the introduction of NiTi, a metal that due
to its greater flexibility in
at least thinner tapers and
tip sizes can rotate within a
canal without causing major
distortions. From the point
of hand fatigue the application of a rotating engine was
5. To know clearly when
a major advancement. Howan impediment is encounever, for the first time, we
tered. This ability is cruwere now using instruments
cial to distortion-free shapthat were routinely subject
ing. Without it, the tip of an
to both torsional stress and
instrument can hit a wall
cyclic fatigue3-4 the two facwithout the dentist being
aware that this is the reason Fig. 3: Magnitors that are most responthe instrument has fication of
sible for instrument separastopped advanc- a relieved
tion. One logical answer to
ing. Being short reamer. Note
reduced breakage is obviof measurement, lower number
ously reduced usage resultand not knowing a of vertically
ing in the recommendations
wall has been hit, oriented flutes
by all rotary NiTi manufacmay simply cause and the flat
tures for single usage. The
the dentist to apply side.
policy of single usage has
more apical presbeen recommended for all
sure using a twist and peck instruments although it is only rotary
motion until the desired NiTi that is vulnerable to breakage.4,5
depth is reached not know- This is strictly a policy formulated by
ing that the increased depth the advocates of rotary NiTi to blur
is at the expense of perforat- what is an apparent disadvantage
ing through that wall rather compared to all other systems that
than negotiating around it. are not used in rotation. As long as
This problem is addressed we confine ourselves to instruments
by using instruments, name- that penetrate the canal length with
ly reamers both relieved minimal resistance, shave dentin with
and unrelieved that have great efficiencies, have significantly
minimal engagement along more flexibility than K-files, and are
length giving the dentist the
tactile perception required
g ET page 3B
Do you have general comments or criticism
you would like to share? Is there a particular topic you would like to see more articles
about? Let us know by e-mailing us at
feedback@dental-tribune.com. If you would
like to make any change to your subscription
(name, address or to opt out) please send us an
e-mail at database@dental-tribune.com and
be sure to include which publication you are
referring to. Also, please note that subscription
changes can take up to six weeks to process.
ET
Corrections
Endo Tribune strives to
maintain the utmost accuracy in its news and clinical reports. If you find
a factual error or content that requires clarification, please report the
details to Managing Editor
Fred Michmershuizen at
f.michmershuizen@dentaltribune.com.
ENDO TRIBUNE
The World’s Endodontic Newspaper · U.S. Edition
Publisher & Chairman
Torsten R. Oemus
t.oemus@dental-tribune.com
Chief Operations Officer
Eric Seid
e.seid@dental-tribune.com
Group Editor & Designer
Robin Goodman
r.goodman@dental-tribune.com
Editor in Chief Endo Tribune
Frederic Barnett, DMD
BarnettF@einstein.edu
International Editor Endo Tribune
Prof. Dr. Arnaldo Castellucci
Managing Editor Endo Tribune &
Online Editor
Fred Michmershuizen
f.michmershuizen@dental-tribune.com
Managing Editor/Designer
Implant & Lab Tribunes
Sierra Rendon
s.rendon@dental-tribune.com
Managing Editor/Designer
Ortho Tribune & Show Dailies
Kristine Colker
k.colker@dental-tribune.com
Managing Editor/Designer
Dental Tribune Canada
Robert Selleck
r.selleck@dental-tribune.com
Account Manager
Humberto Estrada
h.estrada@dental-tribune.com
Marketing Manager
Anna Wlodarczyk-Kataoka
a.wlodarczyk@dental-tribune.com
Marketing & Sales Assistant
Lorrie Young
l.young@dental-tribune.com
C.E. Manager
Julia Wehkamp
j.wehkamp@dental-tribune.com
International C.E. Sales Manager
Christiane Ferret
c.ferret@dtstudyclub.com
Dental Tribune America, LLC
116 W. 23rd St., Suite #500
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Tel.: (212) 244-7181
Fax: (212) 244-7185
Published by Dental Tribune America
© 2011 Dental Tribune America.
All rights reserved.
Dental Tribune America makes every effort
to report clinical information and manufacturer’s product news accurately, but cannot
assume responsibility for the validity of product claims, or for typographical errors. The
publishers also do not assume responsibility
for product names or claims, or statements
made by advertisers. Opinions expressed by
authors are their own and may not reflect
those of Dental Tribune America.
Editorial Advisory Board
Frederic Barnett, DMD (Editor in Chief)
Roman Borczyk, DDS
L. Stephen Buchanan, DDS, FICD, FACD
Gary B. Carr, DDS
Prof. Dr. Arnaldo Castellucci
Joseph S. Dovgan, DDS, MS, PC
Unni Endal, DDS
Fernando Goldberg, DDS, PhD
Vladimir Gorokhovsky, PhD
Fabio G.M. Gorni, DDS
James L. Gutmann, DDS, PhD (honoris causa),
Cert Endo, FACD, FICD, FADI
William “Ben” Johnson, DDS
Kenneth Koch, DMD
Sergio Kuttler, DDS
John T. McSpadden, DDS
Richard E. Mounce, DDS, PC
John Nusstein, DDS, MS
Ove A. Peters, PD Dr. med dent., MS, FICD
David B. Rosenberg, DDS
Dr. Clifford J. Ruddle, DDS, FACD, FICD
William P. Saunders, Phd, BDS, FDS, RCS Edin
Kenneth S. Serota, DDS, MMSc
Asgeir Sigurdsson, DDS
Yoshitsugu Terauchi, DDS
John D. West, DDS, MSD
[3] =>
Industry Opinion 3B
ENDO Tribune | October 2011
f ET page 2B
used with a short arc of motion either
manually or in a 30-degree reciprocating handpiece (Fig. 2), cyclic fatigue
and torsional stress is not an issue
and there are no prohibitions against
multiple usage.
7. A simple system that encompasses
all the above. One would think from
the multitude of rotary NiTi systems
that have come and gone that achieving the above criteria would be an
almost impossible task. However, that
is only true if we insist on living
within the rotary NiTi world. If we
mostly abandon NiTi and substitute
stainless steel relieved reamers and
if we abandon rotation and substitute
a tight watch winding motion or the
30-degree arc of motion generated by
a reciprocating handpiece oscillating
at 3,000 to 4,000 cycles per minute,
we are virtually immune to breakage. Once breakage is no longer an
issue, we can work all the walls of the
canal in a secure manner to remove
a uniform layer of dentin creating a
larger version of the original canal
shape. The greater stiffness of stainless steel compared to NiTi is mitigated by using a reamer rather than
a file design, creating a flat along the
entire working length of the shaft and
knowing that unlike NiTi stainless
steel especially when designed as a
relieved reamer (Fig. 3) has the ability to record the curvature of a canal
as it passes through it. The ability to
record a curve means the instrument
is adapting to the canal space. It does
not have NiTi’s property of always
seeking the straight position, a property that causes increasing selective
instrumentation to the outside wall of
curved canals in effect magnifying the
chances of canal distortion. Simplicity
starts with knowing that our instruments will remain intact (Figs. 4–6).
Once we know that is a fact, we are
confident in working the cutting flutes
against all the walls of the canal. In
most cases, the instrument automatically adapts to the canal space recording the curves it negotiates through.
In those cases where the curves are
severe, the relieved reamers whether
used manually or in the reciprocating
handpiece provides a high level of
tactile awareness telling the dentist
when the tip of the instrument must
be pre-bent to negotiate around these
obstacles.
We can make our lives simple or
complicated. It is our choice. What we
don’t often realize is that the initial
decisions we make can put us on the
road to either outcome and it may not
Send us
your case study!
To have a recent case study considered for publication in Endo Tribune,
send your 800- to 1,200-word case
study and up to 12 high-resolution
photos to Managing Editor Fred Michmershuizen at f.michmershuizen@
dental-tribune.com.
Cases will be published pending editor approval and space availability.
be apparent when the decision was
first made. For those who were taught
or chose to use K-files, the instruments’ limitations inevitably led many
to seek more effective means of canal
shaping resulting in the wide adoption of rotary NiTi as an answer that in
turn led to the complications of instrument separation and canal distortion
that in turn led to more conservative
preparations that are not cleansed as
well as they should be.
For those who chose reamers both
relieved and unrelieved used with
either a watch winding motion or
in the 30-degree reciprocating handpiece, they are using instruments that
create a glide path far better than
K-files and then go on to shape the
rest of the canal far more safely than
rotary NiTi and because of that inherg ET page 5B
Fig. 4: Radiograph of a case that was performed using a relieved reamer in
reciprocating handpiece.
AD
[4] =>
4B
AAE Meeting Preview
f ET page 1B
Welcome Dinner
Attendees and registered spouses
and guests are invited to enjoy a special evening featuring local cuisine
and entertainment, Big Easy style!
This outdoor event will take place
poolside on Thursday, from 6:30 to
9:30 p.m.
Forever New Orleans Tour
Meeting attendees can spend an
afternoon exploring the most famous
(and infamous) landmarks in New
Orleans and learn the fascinating
history behind these buildings. Tour
highlights include the French Quarter, Lakeview and St. Charles Avenue
neighborhoods. Lunch at Muriel’s
Jackson Square, one of the finest
restaurants New Orleans has to offer,
will also be included. The tour will
be held Thursday from 12:30 to 4:30
p.m. The $100 per person charge
includes lunch.
AAE Golf Tournament
For golfers, the Tournament Players Club of Louisiana at Fairfield
offers 18 picturesque holes crafted by world-renowned golf course
architect Pete Dye. The course was
designed to be a perfect complement
to the local ambiance, meandering
between the rolling hills, lush wetlands and native cypress trees that
lie just across the great Mississippi.
The tournament will be held Friday
at 12:45 p.m., with a noon departure
from the hotel. The $185-per-person charge includes green fees, cart,
range usage and a box lunch.
Volunteer Project
The Roosevelt Hotel. (Photo/The
Roosevelt New Orleans Hotel)
AD
Meeting attendees are invited to
spend an afternoon with friends and
colleagues while volunteering at a
community service event that supports the Second Harvest Food Bank
of Greater New Orleans. Volunteers
help sort and pack food donations
that are later distributed to agencies
serving the needy in the community.
Endo Tribune | October 2011
AAE Conference at a glance
Learn
• Successful ways to communicate your role with referral partners
• How to grow and prosper in a challenging economic climate
• Treatment planning in the implant era
• Current best evidence for surgical and nonsurgical endodontic
treatment
Enjoy
• The French Quarter, classic antebellum mansions, infamous
Bourbon Street
• Fabulous music venues
• Restaurants featuring well-known chefs and excellent cuisine
Contribute
• Through sharing ideas and best practices with your peers
• Your time at a volunteer service project to help continue New
Orleans’ inspiring revitalization
Transportation and lunch will be
provided. The event will be held Friday from 12:30 to 3:30 p.m.
Further details about the conference, including information on
speakers and optional activities, can
be found on the AAE website at
www.aae.org/fallconference. Online
registration is open through Oct. 26;
registration forms can also be printed and faxed to AAE Headquarters
at (866) 451-9020 (from the United
States, Canada and Mexico) or (312)
266-9867 from other countries, or
submitted via postal mail to AAE
headquarters, at 211 E. Chicago Ave.,
Suite 1100, Chicago, IL 60611-2691.
g ET page 6B
[5] =>
ENDO Tribune | October 2011
Industry Opinion 5B
f ET page 3B
ent safety to an undistorted dimension
that is significantly wider than those
produced with rotary NiTi particularly
in curved canals. In short, how we
start will most often define where we
end up.
If you would like additional information on techniques discussed in
this article, I can be reached by phoning (888) 542-6376. ET
References
1. Khademi A, Yazdizadeh M, Feizianfard M. Determination of the
minimum instrumentation size for
penetration of irrigants to the apical
third of root canal systems. J Endod.
2006 May;32(5):417-20.
2. Wu M-K, Roris A, Barkis D, Wesselink PR (200) Prevalence and extent
of long oval canals in the apical
third. Oral Surgery, Oral Medicine,
Oral Pathology, Oral Radiology and
Endodontics 89, 739-42.
3. Wan J, Rasimick BJ, Musikant BL,
Deutsch AS. A comparison of cyclic
fatigue resistance in reciprocating
and rotary nickel-titanium instruments. Aust Endod J 2010; In Press.
4. Li UM, Lee BS, Shih CT, Lan WH,
Lin CP. Cyclic fatigue of endodontic
nickel titanium rotary instruments:
static and dynamic tests. J Endod.
2002 Jun;28(6):448-51.
5. Sattapan B, Nervo GJ, Palamara JE,
Messer HH. Defects in rotary nickeltitanium files after clinical use. J
Endod. 2000 Mar;26(3):161-5.
ET About the author
Barry
Lee
Musikant, DMD,
is a member of
the
American
Dental Association, American
Association of
Endodontists,
Academy of General Dentistry, the Dental Society
of New York, First District Dental
Society, Academy of Oral Medicine, Alpha Omega Dental Fraternity and the American Society
of Dental Aesthetics. He is also a
fellow of the American College
of Dentistry (FACD). As a partner
in the largest endodontic practice
in Manhattan, Musikant’s 35-plus
years of practice experience have
established him as one of the top
authorities in endodontics.
Send us
your case study!
To have a recent case study considered for publication in Endo Tribune,
send your 800- to 1,200-word case
study and up to 12 high-resolution
photos to Managing Editor Fred Michmershuizen at f.michmershuizen@
dental-tribune.com. Cases will be
published pending editor approval
and space availability.
Figs. 5-6: Radiographs of cases that were performed using relieved reamers in a reciprocating handpiece.
AD
[6] =>
6B
AAE Meeting Preview
Endo Tribune | October 2011
f ET page 4B
AAE Fall Conference schedule
Wednesday, Nov. 2
4:30 - 6:30 p.m.
Registration and Information
Roosevelt Ballroom Promenade
Thursday, Nov. 3
7 - 8 a.m.
Continental Breakfast
Roosevelt Ballroom Promenade
7 a.m. - 12:30 p.m.
Registration and Information
Roosevelt Ballroom Promenade
8 a.m. - 12:30 p.m.
Educational Program, Roosevelt Ballroom
French Quarter of New Orleans. (Photo/Alex Demyan, NewOrleansOnline.com)
AD
8 – 8:20 a.m.
Welcome and Introductions
William T. Johnson, DDS, MS, AAE President; Hedley Rakusin, BDS, MSc, C.E.
Committee Chair
8:20 – 10 a.m.
Establishing the Value of the Endodontist as a Partner in Comprehensive Dental Care – David Schwab, PhD
10:30 a.m. – 12:30 p.m.
The Current Best Evidence for Nonsurgical Endodontic Treatment: Prognosis
and Efficacy of Treatment Procedures –
Shimon Friedman, DDS
12:30 p.m.
Optional: Forever New Orleans Tour
6:30 – 9:30 p.m.
Welcome to New Orleans Dinner
Poolside
Friday, Nov. 4
7 - 8 a.m.
Continental Breakfast
Roosevelt Ballroom Promenade
7 a.m. - noon
Registration and Information
Roosevelt Ballroom Promenade
8 a.m. - noon
Educational Program
Roosevelt Ballroom
8 – 10 a.m.
Integrating Endodontics Into the General Dentist’s Treatment Plan
John S. Olmsted, DDS, MS
10:30 a.m. – noon
Endodontic Treatment Planning in
Implant Era Richard S. Schwartz, DDS
12:30 p.m.
Optional Activity: Volunteer Project
12:45 p.m.
Optional Activity: AAE Golf Tourny
Saturday, Nov. 5
7 - 8 a.m.
Continental Breakfast
Roosevelt Ballroom Promenade
7 a.m. - 12:30 p.m.
Registration and Information
Roosevelt Ballroom Promenade
8 a.m. - 12:30 p.m.
Educational Program
Roosevelt Ballroom
8 – 10 a.m.
The Current Best Evidence for Surgical
Endodontic Treatment: Prognosis and
Efficacy of Treatment Procedures – Shimon Friedman, DDS
10:30 a.m. – noon
Uncertain Times ... and What YOU Can
Do About It! – Don Deems, DDS
Noon – 12:30 p.m.
Question-and-Answer Panel
12:30 p.m. Adjourn
(Source: AAE)
g ET page 7B
[7] =>
ENDO Tribune | October 2011
Meeting Preview/Industry 7B
f ET page 6B
Take a stroll in the French Quarter
The French Quarter, also known
as Vieux Carré or “the Quarter” to
locals, sits on a crescent in the Mississippi River on some of the highest
ground in New Orleans. Not only
is this the city’s cultural hub, it is
a community where residents take
time to reminisce with neighbors
about times gone by and to welcome visitors in the streets.
Intimate and unique, New Orleans’
oldest neighborhood has exerted a
spell over writers and artists since the
time of Mark Twain, Lafcadio Hern
and John James Audubon.
Hollywood celebrities and software magnates have joined the residential mix, keeping the glamour
up to date, but it is the year-round
local residents who keep the neighborhood vibrant.
French Quarter architecture is a
mix of Spanish, French, Creole and
American styles. Plastered walls and
single chimneys reflect laws enacted
after fire virtually destroyed the city
Located at Peter and Royal Streets
in the heart of the French Quarter,
Preservation Hall is where you can
experience genuine New Orleans
jazz. The music begins nightly at
8 p.m., with a line usually forming
outside a half hour before. (Photo/
GNOTCC, Michael Terranova,
NewOrleansOnline.com)
in 1788 and 1794. Walled courtyards,
perfect for French Quarter parties,
are a gift of the Spanish influence.
Cast iron balconies were added to
many masonry buildings after 1850,
when Baroness Pontalba included them on her fashionable row
houses near Jackson Square. These
lacy galleries, along with plentiful stoops and porches on younger
buildings, make the Quarter a great
place for people watching – and
every kind of person imaginable
can be spotted on the sidewalks of
the Quarter.
Visitors can obtain an inside look
at architectural gems by going on
home tours offered throughout the
year. Gallier House, designed and
built by James Gallier, one of the
most esteemed architects in New
Orleans history, is one of the best
examples of the fusion between
culture and architecture in the
city. Gallier House dons “Summer
Dress” each season, and visitors
are fascinated by this 19th century,
Creole custom that helps keep the
house cool during the warm summer months.
Besides its obvious architectural
distinction, the Vieux Carré offers
visitors a plethora of different experiences. Around the bend of every
corner you may find an eclectic
shopping destination, a delicious
restaurant, or a historical museum.
Browse the treasure trove at the
French Market, shade yourself in
Jackson Square, and munch on a
muffellata at Central Grocery.
Do not be fooled by the common
interpretation of the French Quarter, because it is so much more than
anything you could expect. ET
(Source: New Orleans Tourism
Marketing Corp.)
J. Morita USA introduces Root ZX mini
The Root ZX mini apex locator
can easily be moved to work
in any quadrant of the
mouth. (Photo/Provided
by J. Morita USA Inc.)
e3 torque-control motor feature packed
DENTSPLY Tulsa Dental Specialties recently introduced e3TM,
a new torque-control motor
designed for rotary and reciprocation instruments.
The e3 motor was designed
with simple operation in mind. Its
quiet operation and large, clear
and easy-to-read display is preprogrammed for the WaveOne
reciprocating file as well as all
of the other DENTSPLY Tulsa
Dental Specialties’ file settings
including, but not limited to: ProFile® Vortex®, ProTaper® Universal and PathFile®, plus 15 other
programmable settings.
e3Motor (Photo/Provided
by Dentsply Tulsa
Dental Specialities)
•
•
•
•
•
•
•
Other features include:
Rotary and reciprocation function
Preprogrammed with popular
file system settings
Operates on battery or AC
power
6:1 contra-angle included
(e-type)
Speed setting from 250-1000
rpm in rotary mode
Torque settings from 20-410
g-cm in rotary mode
Auto-stop, reverse (ASR) and
forward in rotary mode
For more details or to purchase
the e3TM torque-control motor,
visit www.tulsadentalspecialties.
com or call (800) 662-1202.
J. Morita recently introduced
Root ZX mini. The apex locator
is now available in a compact,
mini design with proven Root ZX
technology.
Root ZX mini measures just
over 4 by 2 1/3 inches. Its compact
and lightweight design makes it
conveniently portable; it can easily be moved to work in any quadrant of the mouth and it takes up
very little counter space when it is
stored after use. Like the original
model, Root ZX mini utilizes the
ratio technique for precise length
measurement. This technology
has been independently evaluated at a 97.5 percent accuracy
rate (data on file).
“Morita’s Root ZX apex locators have dominated the market
as the No. 1 selling units since the
early 1990s,” said Steven White,
senior vice president of sales and
marketing. “Expanding this product line is an important step for
our company. The mini unit has
been very popular in other parts
of the world. We’ve had many
requests for this unit, so we are
very optimistic about introducing
this product to North America.”
For enhanced safety, Root ZX
mini offers programmable memory settings that allow the practitioner to mark important points
in the canal to register on the
display. The “flash” bar is set in
the region of the apex and acts
as a reference point for measuring or enlarging the canal. The
“memory” bar marks points such
as the start of a sharp bend or a
point where a file size change is
needed. The LCD display screen
has maintained excellent readability with a clear, progressive
display and high contrast.
Other Root ZX mini features
include: the ability to work in wet
canals, shock resistance, automatic calibration, and power off
function.
For more information, contact
J. Morita USA at (888) JMORITA
(566-7482) or visit www.morita.
com/usa/rootmini.
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