Orthotown October 2016 - 47


Designing
*

*

*

With digital indirect bonding, both the designing and
production of transfer trays are automated. Isolating the
designing from production allows the opportunity to verify bracket positions before making the tray. Adjustments
of the design can be made without wasting materials, and
can be completed in less time than remaking a poorly
fitting tray.
Instead of a lab technician shaping the tray on a dental
model while making the layers of the tray, covering the
brackets and trimming excess material, digital methods
enable custom shaping of the coverage of each bracket so
it doesn't have too much or too little material holding it in
the tray. The doctor can digitally specify the contours of
the tray to prevent brackets from being trapped in it.
Since trays are designed in the software, no physical models
are required for placing brackets. Bracket positions on the
virtual setup are precisely matched on the virtual tray. This
gives the doctor final say about the bracket positions, before
the tray is made.

Production
*

*

*

*
*

With increased availability and affordability of 3-D printers,
orthodontists can do 3-D printing in their own offices with
no lab fees or lengthy delays for shipping. Outsourcing to a
lab for production is unnecessary.
The 3-D printer must be capable of printing the fine details
of the brackets; otherwise, the brackets won't fit correctly in
the tray-even if it was designed perfectly.
Three-dimensional printing the transfer tray eliminates the
former need for a dental model when making the tray. Only
a single material is needed for the tray, and no thermoforming is involved.
Using a printing material that makes the tray rigid gives the
tray a positive "stop" when placed on the teeth.
Before starting bonding, it's important to practice putting
the rigid tray on and off the patient's teeth, to find and

*
*
*

relieve undercuts so that the tray has a passive fit. It shouldn't
snap into place-the tray should be passively seated in the
correct position without any secondary movement because of
being too loose.
While designing the tray, or after printing it, the tray can be
split into segments that make insertion and removal simpler.
When the tray is designed and produced to fit passively, no
finger pressure is needed to hold each segment on the teeth.
After attaching and curing the brackets on the teeth, the tray
can be gently lifted off, presuming the tray design doesn't
trap brackets in their spaces and the undercuts have been
properly relieved.

Outcomes
An indirect bonding system with the previously mentioned
features for planning, design and production can yield multiple
favorable results.
Accuracy: With digital treatment planning, digital tray
designing and onsite 3-D printing, direct-to-ideal tooth positions
and bracket positions are possible. That precision greatly reduces
rebond appointments and round-tripping of teeth. True straight-wire
treatment can be used and minimal (if any) robotic wire-bending
is needed, because the brackets are where the doctor wants them.
Timing: Working entirely in the doctor's own office contributes
to shorter overall treatment time. No need for technique-sensitive
manual production of transfer trays. No need for back-and-forth
with labs to verify that technicians have correctly placed brackets,
and no worrying that appliances will arrive in time for the bonding
appointment. Transfer trays can be designed, printed and used promptly.
Expenses: Costs such as these can be greatly reduced, and
even eliminated, by using digital indirect bonding and in-house
3-D printing:
* Lab services and materials for transfer tray designing
and production
* Wire-bending services
* Shipping
* Dental models for setups
* Rebond appointments
* Remaking of trays that may not fit because of changes with
the patient's dentition (such as eruptions) during the delay
for arrival of the trays.
orthotown.com \\ OCTOBER 2016

47


http://www.orthotown.com

Table of Contents for the Digital Edition of Orthotown October 2016

Orthotown.com Highlights
Embrace Progress: What’s In Your Records?
New Products
Poll
Message Boards: HSD/Invisalign/Adult
Message Boards: Phase 1: Anterior Crossbite and Crowding
Interdisciplinary Ortho-Perio Treatment of Excessive Gingival Display
Creating a Strong Scheduling Architecture
Indirect Bonding: A Closer Look
Indirect Bonding: The Tech Effect
Welcome to Digital Orthodontics
Good Vibrations
Ad Index
Orthotown October 2016 - Cover1
Orthotown October 2016 - Cover2
Orthotown October 2016 - 1
Orthotown October 2016 - 2
Orthotown October 2016 - 3
Orthotown October 2016 - 4
Orthotown October 2016 - 5
Orthotown October 2016 - Orthotown.com Highlights
Orthotown October 2016 - 7
Orthotown October 2016 - Embrace Progress: What’s In Your Records?
Orthotown October 2016 - 9
Orthotown October 2016 - New Products
Orthotown October 2016 - 11
Orthotown October 2016 - Poll
Orthotown October 2016 - 13
Orthotown October 2016 - Message Boards: HSD/Invisalign/Adult
Orthotown October 2016 - 15
Orthotown October 2016 - 16
Orthotown October 2016 - 17
Orthotown October 2016 - Message Boards: Phase 1: Anterior Crossbite and Crowding
Orthotown October 2016 - 19
Orthotown October 2016 - 20
Orthotown October 2016 - 21
Orthotown October 2016 - 22
Orthotown October 2016 - 23
Orthotown October 2016 - 24
Orthotown October 2016 - 25
Orthotown October 2016 - 26
Orthotown October 2016 - 27
Orthotown October 2016 - Interdisciplinary Ortho-Perio Treatment of Excessive Gingival Display
Orthotown October 2016 - 29
Orthotown October 2016 - 30
Orthotown October 2016 - 31
Orthotown October 2016 - 32
Orthotown October 2016 - 33
Orthotown October 2016 - 34
Orthotown October 2016 - 35
Orthotown October 2016 - Creating a Strong Scheduling Architecture
Orthotown October 2016 - 37
Orthotown October 2016 - 38
Orthotown October 2016 - 39
Orthotown October 2016 - Indirect Bonding: A Closer Look
Orthotown October 2016 - 41
Orthotown October 2016 - 42
Orthotown October 2016 - 43
Orthotown October 2016 - Indirect Bonding: The Tech Effect
Orthotown October 2016 - 45
Orthotown October 2016 - 46
Orthotown October 2016 - 47
Orthotown October 2016 - 48
Orthotown October 2016 - 49
Orthotown October 2016 - Welcome to Digital Orthodontics
Orthotown October 2016 - 51
Orthotown October 2016 - 52
Orthotown October 2016 - 53
Orthotown October 2016 - Good Vibrations
Orthotown October 2016 - 55
Orthotown October 2016 - 56
Orthotown October 2016 - 57
Orthotown October 2016 - 58
Orthotown October 2016 - 59
Orthotown October 2016 - 60
Orthotown October 2016 - Cover4
Orthotown October 2016 - Ad Index
http://www.nxtbook.com/farran/orthotown/2019November
http://www.nxtbook.com/farran/orthotown/2019October
http://www.nxtbook.com/farran/orthotown/2019September
http://www.nxtbook.com/farran/orthotown/2019JulyAugust
http://www.nxtbook.com/farran/orthotown/2019June
http://www.nxtbook.com/farran/orthotown/2019May
http://www.nxtbook.com/farran/orthotown/2019April
http://www.nxtbook.com/farran/orthotown/2019March
http://www.nxtbook.com/farran/orthotown/2019JanFeb
http://www.nxtbook.com/farran/orthotown/2018December
http://www.nxtbook.com/farran/orthotown/2018November
http://www.nxtbook.com/farran/orthotown/2018October
http://www.nxtbook.com/farran/orthotown/2018September
http://www.nxtbook.com/farran/orthotown/2018August
http://www.nxtbook.com/farran/orthotown/2018June
http://www.nxtbook.com/farran/orthotown/2018May
http://www.nxtbook.com/farran/orthotown/2018April
http://www.nxtbook.com/farran/orthotown/2018March
http://www.nxtbook.com/farran/orthotown/2018February
http://www.nxtbook.com/farran/orthotown/2017December
http://www.nxtbook.com/farran/orthotown/2017November
http://www.nxtbook.com/farran/orthotown/2017October
http://www.nxtbook.com/farran/orthotown/2017September
http://www.nxtbook.com/farran/orthotown/August_2017
http://www.nxtbook.com/farran/orthotown/2017June
http://www.nxtbook.com/farran/orthotown/2017May
http://www.nxtbook.com/farran/orthotown/2017April
http://www.nxtbook.com/farran/orthotown/March2017
http://www.nxtbook.com/farran/orthotown/2017JanFeb
http://www.nxtbook.com/farran/orthotown/2016_December_Orthotown
http://www.nxtbook.com/farran/orthotown/2016November
http://www.nxtbook.com/farran/orthotown/2016October
http://www.nxtbook.com/farran/orthotown/2016september
http://www.nxtbook.com/farran/orthotown/2016august
http://www.nxtbook.com/farran/orthotown/2016june
http://www.nxtbook.com/farran/orthotown/2016may
http://www.nxtbook.com/farran/orthotown/2016april
http://www.nxtbook.com/farran/orthotown/2016march
http://www.nxtbook.com/farran/orthotown/2016february
http://www.nxtbook.com/farran/orthotown/2015december
http://www.nxtbook.com/farran/orthotown/2015november
http://www.nxtbook.com/farran/orthotown/2015october
http://www.nxtbook.com/farran/orthotown/2015september
http://www.nxtbook.com/farran/orthotown/2015august
http://www.nxtbook.com/farran/orthotown/2015june
http://www.nxtbook.com/farran/orthotown/2015may
http://www.nxtbook.com/farran/orthotown/2015april
http://www.nxtbook.com/farran/orthotown/2015march
http://www.nxtbook.com/farran/orthotown/2015february
http://www.nxtbook.com/farran/orthotown/2014december
http://www.nxtbook.com/farran/orthotown/2014november
http://www.nxtbook.com/farran/orthotown/2014october
http://www.nxtbook.com/farran/orthotown/2014september
http://www.nxtbook.com/farran/orthotown/2014august
http://www.nxtbook.com/farran/orthotown/2014june
http://www.nxtbook.com/farran/orthotown/2014may
http://www.nxtbook.com/farran/orthotown/2014april
http://www.nxtbook.com/farran/orthotown/march2014
http://www.nxtbook.com/farran/orthotown/2014february
http://www.nxtbook.com/farran/orthotown/2013december
http://www.nxtbook.com/farran/orthotown/2013november
http://www.nxtbook.com/farran/orthotown/2013october
http://www.nxtbook.com/farran/orthotown/2013september
http://www.nxtbook.com/farran/orthotown/2013august
http://www.nxtbook.com/farran/orthotown/2013june
http://www.nxtbook.com/farran/orthotown/2013may
http://www.nxtbook.com/farran/orthotown/2013april
http://www.nxtbook.com/farran/orthotown/2013march
http://www.nxtbook.com/farran/orthotown/2013janfeb
http://www.nxtbook.com/farran/orthotown/2012december
http://www.nxtbook.com/farran/orthotown/2012november
http://www.nxtbook.com/farran/orthotown/2012october
http://www.nxtbookMEDIA.com