DentaltownUK August 2017 - 16
Fig. 7a. A traditional NiTi file from round blank is represented by the color red, the XPendo Shaper by
the color blue. The sinusoidal motion of the XPendo Shaper-in contrast to the round file which augurs-
demonstrates the benefit of adaptive debridement. In conjunction with the Finisher, unprecedented
levels of debris removal and disinfection are possible. (Image courtesy of Dr Gustavo de Deus.)
Fig. 7b. Minimally invasive endodontics.
Fig 8a. Photoelasticity is an experimental technique for stress and strain analysis, useful for conditions
of complicated geometry or loading. As evidenced by the accompanying images, the XPendo Shaper
demonstrates the least stress in the apical third. Internal tests performed at FKG Dentaire, Switzerland.
16
AUGUST 2017 // dentaltownuk.com
Continued from p. 14
instrument. There are no cutting flutes on
the lead section of the booster tip, and the
XP-3D Shaper instrument slips into the
prepared apical component of the glide
path to a depth of 0.25 millimeters. The
next 0.25mm section of the booster tip is
configured with six cutting flutes.
Rotation of these flutes sizes the next
0.25mm of canal space anywhere from a
#25 to #60 tip with the rest of taper variable,
dependent on the desires of the manufacturer
or clinician. In the XP-3D Shaper the apical
size chosen is #30. Thus, the booster tip
enables achieving a #30 tip size within five
swaths after the creation of the #15/.02
glide path.
The core taper of the XP-3D Shaper
file is .01 and at room temperature in the
martensite form, the file appears and acts in
terms of flexibility and cyclic fatigue like a
traditional #30/.01 solid core file; however,
at body temperature the austenite shape is
snakelike and has a taper of .08 when no
resistance is met. The file now maintains
its properties in terms of f lexibility and
resistance to cyclic fatigue of the #30/.01
tapered file, but can potentially create a
shape of #30/.08. The final taper of the file is
time-dependent. When the file has reached the
working length, it is 'squeezed' to a #30/.02
shape. At body temperature, it will expand
to its austenite shape. It is the resistance of
the dentin that limits its achieving its full
potential, dependent on time.
If after reaching working length the file
is used in with approximately 10 additional
swaths, it will reach a #30/.04 size; 10 more
swaths, a #30/.06, etc. To maintain critical
coronal dentin, dentinal girth, the authors
believe that a #30/.04 shape is ideal. Of
paramount importance: The time of use of
the file is extremely safe in terms of cyclic
fatigue resistance. The snakelike shape of
the file and its virtual/adaptive core and
mechanism of use allow the file to adapt to
the true or native shape of the canal.
Fig. 7a demonstrates the difference between
the ability of a standard round NiTi file to
clear a less-than-ideal volume of intracanal
http://www.dentaltownuk.com
Table of Contents for the Digital Edition of DentaltownUK August 2017
Cover
On Dentaltown.com
Editorial with Mike Gow
Meet the Team
Howard Speaks: Drive-Thrus and Dentistry
Endodontic Reboot: Part One
Classified Listings
Brand Advertising
A United Voice
Adhesion in Primary Dentition Restorative Dentistry
Additive Dentistry
Zero Moment of Truth
Through the Keyhole
Message Boards: Re-treats question
Due Diligence—A Vendor's Perspective
Message Boards: Antibiotics after Surgical Extraction
Adding Value to the Patient Experience
Lifestyle
Poll: General Dentistry
CE Update
Students Section
Wishlist
DentaltownUK August 2017 - Cover
DentaltownUK August 2017 - Cover2
DentaltownUK August 2017 - 3
DentaltownUK August 2017 - 4
DentaltownUK August 2017 - On Dentaltown.com
DentaltownUK August 2017 - Editorial with Mike Gow
DentaltownUK August 2017 - 7
DentaltownUK August 2017 - Meet the Team
DentaltownUK August 2017 - 9
DentaltownUK August 2017 - Howard Speaks: Drive-Thrus and Dentistry
DentaltownUK August 2017 - 11
DentaltownUK August 2017 - Endodontic Reboot: Part One
DentaltownUK August 2017 - 13
DentaltownUK August 2017 - 14
DentaltownUK August 2017 - Classified Listings
DentaltownUK August 2017 - 16
DentaltownUK August 2017 - 17
DentaltownUK August 2017 - 18
DentaltownUK August 2017 - 19
DentaltownUK August 2017 - 20
DentaltownUK August 2017 - 21
DentaltownUK August 2017 - 22
DentaltownUK August 2017 - Brand Advertising
DentaltownUK August 2017 - 24
DentaltownUK August 2017 - A United Voice
DentaltownUK August 2017 - Adhesion in Primary Dentition Restorative Dentistry
DentaltownUK August 2017 - 27
DentaltownUK August 2017 - 28
DentaltownUK August 2017 - 29
DentaltownUK August 2017 - 30
DentaltownUK August 2017 - 31
DentaltownUK August 2017 - Additive Dentistry
DentaltownUK August 2017 - 33
DentaltownUK August 2017 - Zero Moment of Truth
DentaltownUK August 2017 - 35
DentaltownUK August 2017 - 36
DentaltownUK August 2017 - Through the Keyhole
DentaltownUK August 2017 - 38
DentaltownUK August 2017 - 39
DentaltownUK August 2017 - 40
DentaltownUK August 2017 - 41
DentaltownUK August 2017 - Message Boards: Re-treats question
DentaltownUK August 2017 - 43
DentaltownUK August 2017 - 44
DentaltownUK August 2017 - 45
DentaltownUK August 2017 - 46
DentaltownUK August 2017 - 47
DentaltownUK August 2017 - 48
DentaltownUK August 2017 - 49
DentaltownUK August 2017 - 50
DentaltownUK August 2017 - 51
DentaltownUK August 2017 - Due Diligence—A Vendor's Perspective
DentaltownUK August 2017 - 53
DentaltownUK August 2017 - 54
DentaltownUK August 2017 - 55
DentaltownUK August 2017 - Message Boards: Antibiotics after Surgical Extraction
DentaltownUK August 2017 - 57
DentaltownUK August 2017 - 58
DentaltownUK August 2017 - 59
DentaltownUK August 2017 - Adding Value to the Patient Experience
DentaltownUK August 2017 - 61
DentaltownUK August 2017 - Lifestyle
DentaltownUK August 2017 - 63
DentaltownUK August 2017 - 64
DentaltownUK August 2017 - 65
DentaltownUK August 2017 - 66
DentaltownUK August 2017 - 67
DentaltownUK August 2017 - 68
DentaltownUK August 2017 - 69
DentaltownUK August 2017 - 70
DentaltownUK August 2017 - 71
DentaltownUK August 2017 - 72
DentaltownUK August 2017 - 73
DentaltownUK August 2017 - Poll: General Dentistry
DentaltownUK August 2017 - 75
DentaltownUK August 2017 - CE Update
DentaltownUK August 2017 - 77
DentaltownUK August 2017 - Students Section
DentaltownUK August 2017 - 79
DentaltownUK August 2017 - 80
DentaltownUK August 2017 - 81
DentaltownUK August 2017 - 82
DentaltownUK August 2017 - 83
DentaltownUK August 2017 - 84
DentaltownUK August 2017 - 85
DentaltownUK August 2017 - 86
DentaltownUK August 2017 - 87
DentaltownUK August 2017 - Cover4
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