Why Self Ligation? - American Orthodontics

Why you need self ligation in your practice
Self ligation is the next step in the clinical progression of orthodontics. Studies show it treats faster, with less pain, and with fewer appointments.
S e l f l i g a t i n g b r a c k e t s u s e l o w e r, b i o l o g i c a l l y b a l a n c e d f o r c e s
t o m o v e t e e t h f a s t e r.
Dr. W.R. Profitt and Dr. H.W. Field concluded in a 1993 study1 that the ideal force to move teeth would be
strong enough to move teeth, but not strong enough to cut off the vascular supply to the periodontal ligament.
The low friction of self ligating brackets allows the use of low, continuous force wires resulting in efficient,
comfortable tooth movement.
Reduced friction speeds tooth movement and shortens
treatment time.
Studies have consistently shown that friction levels in traditionally ligated systems can be up to
600X that of self ligation systems.2,3,4 The low friction of self ligating systems can shorten
treatment times by 3 to 6 months.
Longer treatment intervals and shorter appointments.
Appointment intervals can be up to 12 weeks apart with self ligating systems. With no
ligatures to tie, setup and maintenance appointments are often shorter and easier on staff.
Why self ligation?
Increased Patient Load • Shorter Office Hours
Happier Staff • Happier Patients and Parents
TM
Passive Self Ligation System
Improving the Passive system with Vision LP*
Vision LP brackets are fully passive, allowing teeth to move along the arch wire with significantly reduced friction. High, standard, and low torque options
provide patient-customized treatment while still maintaining low friction mechanics. Coordinated VLP arch wires complement the bracket system and are
available in a full range of materials, for all stages of treatment. Together, the Vision LP brackets, variable torques, and VLP wires of the
Vision LP System work to maximize the benefits of passive self ligation.
Clip opens 90° for
superior slot access
NiTi clip for durability
and flexibility
Twin tie wings
Low profile, rounded
contours for patient
comfort
Keeper notch in
tie wing holds clip
closed securely
Four slot walls for control, passive slot for
low friction and optimal arch expansion
No bio-debris
buildup for easy
and reliable clip
mechanism
Integral hooks
available on
cuspids and
bicuspids
Rounded mesial, distal, and slot floor
corners for reduced wire binding
* Vision LP is available in a corresponding Dr. Damon system as well as a corresponding Drs. McLaughlin, Bennett, Trevisi
system. The American Orthodontics versions of these two systems are not claimed to be a duplication of any other, nor
does American Orthodontics imply that they are endorsed in any way by Drs. Damon, McLaughlin, Bennett, or Trevisi.
Vision LP Patent pending
No Bio-debris binding
Brackets with sliding gates or spring clips can trap bio-debris and build up calculus in their opening mechanisms, making them difficult to open. Vision LP
brackets with Flip ClipTM technology solve this common problem by eliminating narrow clip tracks and rotating open instead of sliding.
Sliding Gate Style
Spring Clip Style
F l i p C l i p TM S t y l e
Toothbrushes cannot reach the recesses of the metal on metal sliding tracks (shown above in red) of other clip designs. Over the course of treatment, biodebris can build up and make the clips increasingly difficult to open. Vision LP clips have only very small contact points, which are located on the face of the
bracket where they are scrubbed clean every time the patient brushes.
Vision LP
Damon3 MX*
Damon3*
Low Profile
Vision LP brackets offer patients a lower profile and less bulk than
Damon* brackets. Keeping brackets out of occlusion reduces the
chance for bite debonding.
In/Outs
Lower 2nd Bicuspids shown
Lower Vision LP in/outs keep the arch wire closer to the tooth surface
for enhanced mechanics.
*Registered trademarks of Sybron Dental Specialties Inc.
TM
Passive Self Ligation System
Easy Open and Close
The Vision LP clip was designed with the
user in mind. The clip is easy to open
with a simple rotation of the Vision LP
instrument. Closing is a gentle “click”
with a fingernail or the instrument.
EASY OPEN: Simply insert tip of opening instrument into clip notch
and rotate barrel of the instrument
EASY CLOSE: Press the clip closed
with a fingernail or catch the edge
of the clip with the instrument and
click it closed
MRTM B o n d i n g B a s e s a n d O f f s e t B i c u s p i d P a d s
Using proven Maximum RetentionTM technology, Vision LP bonding bases incorporate
80 gauge mesh on generously sized, photo etched pads, increasing surface area and
mechanical retention. Compound radii closely mimic tooth shape, critical to maximizing
bond strength. Optional offset bicuspid pads provide extra bonding security.
Vision LP instrument
#678-901
Individual Color Coding
Have you ever held a loose bracket and had
to examine it like a detective to determine if it
was a cuspid or a bicuspid? Individual color
coding eliminates doubts and makes sorting
brackets quick and accurate.
Torque options are designated with an additional, occlusal
color code: Red for high torque, green for low torque, while
standard torque has no additional color code
High Standard Low
R
2nd Bicuspid
1st Bicuspid
Cuspid
Lateral
Central
Central
Lateral
Cuspid
1st Bicuspid
Color codes are on distal gingival tie wings and are visible when clips are open
2nd Bicuspid
L
Strong, Durable Clip
The interplay between the keeper notch in the bracket and the carefully heat treated, nickel
titanium clip gives Vision LP the ability to hold up to 10 pounds of outward wire force; more than
enough to contain heavily torqued or rotated wires. However, the unique design of the clip’s hinge
action requires only light, comfortable opening forces during wire changes.
Wide Opening Clip
The Vision LP clip opens 90 degrees, allowing clear visibility and access for
easy wire changes, even in the posterior.
Tw i n D e s i g n
Vision LP’s twin design allows you to use chain and other auxiliary
forces, to offer colored ligatures, or to tie-in wires for additional
finishing control.
M o l a r Tu b e s
Vision LP self ligating buccal tubes save you time and
give you versatility when treating 1st molars.
More Aesthetic and Hygienic
Smaller brackets and no ligatures make Vision LP
more aesthetic and hygienic than conventionally
ligated brackets.
TM
Passive Self Ligation System
VLP
TM
Coordinated Arch Wire
VLP arch wire shown close to actual size
The VLP arch form was designed to maximize the benefits of a passive self ligating bracket system. The slightly wider arch width in the posterior allows for full expression of the expansion characteristics of low friction passive
systems. The wider arch form has the added advantage of creating more arch length, reducing the
need for extractions due to crowding. VLP wires are available in many materials and sizes to offer
complete latitude in treatment planning. VLP arch forms have one universal upper/lower size.
Heat Activated Wire
Stainless Steel Wire
American Orthodontics’ premium heat activated wire, Therma-Ti TM, offers
VLP SS arches are made from the highest quality medical grade steel,
the latest in arch wire technology. The enhanced alloy characteristics of
are polished to a gloss finish, and offer superior tensile strength with less
Therma-Ti produce a wire with biologically optimal unloading forces that
brittleness. Available with presoldered hooks which can be reformed into
are light, continuous, and consistent - perfect for today’s longer treatment
various hook configurations to provide a secure purchase point for force
intervals. Because it is soft at room temperature, Therma-Ti is very easy to
modules or other auxiliaries to aid in closing spaces or in final detailing.
ligate, even into the most malposed teeth, but exhibits superior resistance
to deformation. Therma-Ti has a very small transition range from dead-soft
to active for more predictable force levels.
Super Elastic Nickel Titanium Wire
VLP SE NiTi wire also offers consistent, predictable, and continuous
unloading forces, but with a slightly higher force than heat activated
wire. Polished to the very highest quality satin finish, SE NiTi offers
superior low friction mechanics ideal for the larger dimensions typically
used in SE NiTi.
Suggested Wire Sequencing for Vision LP .022 Slot
UPPER
LOWER
.014 HA
.014 HA
STAGE 2 Torque Control
.014 x .025 HA
.014 x .025 HA
STAGE 2 Continued
.018 x .025 HA
.018 x .025 HA
.019 x .025 SS POSTED
.016 x .025 SS POSTED
STAGE 1 Initial
STAGES 3&4 Finishing
2 mm ARCH STOPS
Prevent “wire creep” on nondimpled arch wires. Crimp a stop at
the midline or use on either side of a
central bracket.
2 mm SURGICAL HOOKS
Conveniently place a hook, as
needed, anywhere on the arch wire.
851-623C 10 pcs/pkg
851-750 10 pcs/pkg
Profitt, W. R., and Field, H. W., Contemporary Orthodontics (Mosby, 1993) pp. 266-288.
2
Damon, D. H: “The Damon Low Friction Bracket: A Biologically Compatible Straight-Wire System.” Journal of Clinical Orthodontics, 11 (1998) 670-680.
3
Kapur, R., Sinha, P., Nanda, R.: “Frictional Resistance of the Damon SL Bracket. “ Journal of Clinical Orthodontics, 8 (1998) 485-489.
4
Thomas, S., Sheriff, M., Birnie, D.: “A comparative in vitro study of the frictional characteristics of two types of self-ligating brackets and two types of pre-adjusted edgewise brackets tied with elastomeric ligatures.” European Journal of Orthodontics, 20 (1998) 589-596.
1
Easy Open and Close
Low Profile
MRTM B o n d i n g B a s e
No Bio Debris Binding
Wide Opening Clip
Tw i n D e s i g n
Strong Durable Clip
Individual Color Coding
TM
Passive Self Ligation System
1714 Cambridge Avenue Sheboygan, WI USA 53081
USA and Canada: 1-800-558-7687 www.americanortho.com
BRKT.20 REV