Orthotown April 2016 - (Page 46)
practice solutions //
Practice Solutions explores how specific products and services can be of use clinically or in practice management.
A Preferred Corrector
When Treating Many Class II Corrections
by Graham Jones,
DDS, MDS
Dr. Graham Jones is the
owner of Jones Family
Orthodontics in Monroe,
Washington. Jones attended
dental school at the
University of California at San
Francisco, where he received
his dental degree. While
in dental school, Dr. Jones
served as class president
and received several awards
for outstanding leadership,
ethics and research. He was
accepted into the orthodontic
residency program at St.
Louis University in Missouri,
where he received his
orthodontic certificate and
a master's degree in Dental
Science.
46
Orthodontists are faced with selecting
methods of Class II correction that are predictably effective, efficient and comfortable for the
patient. Since there are so many philosophies on
timing and technique for Class II correction and
many methods have been proven to be effective
when employed appropriately, the individual
orthodontist's choice often boils down to a practice management decision.
When treating mild to moderate Class II
cases, I typically prefer to wait until the permanent dentition is erupted so I can use full arches
of upper and lower brackets and either Class II
elastics or fi xed, spring-based Class II correctors.
Available evidence indicates that most Class II
correction occurs due to dentoalveolar effects,
regardless of the appliance that is used. Elastics
are convenient and inexpensive, and can be
very predictable if patient compliance is good.
But elastics can have shortcomings-the most
obvious being that they rely on patient compliance completely to be effective. In some cases,
elastics may also be contraindicated because of
their typical side effects of mandibular molar
and maxillary incisor extrusion.
In cases where patient compliance may
be poor or Class II elastic mechanics may
be contraindicated, fi xed Class II correction
springs can be a useful option to have on
hand. I prefer correction springs to more
conventional laboratory-fabricated appliances
because they can be incorporated into my
typical bracket setup at any time I choose,
without the need for significant appliance
modification or additional appointments for
laboratory construction. Additionally, most
fi xed Class II correction springs allow for the
patient's bite to be evaluated in centric relation to assure the correction is not a result of
mandibular posturing; thus, greater stability
can be achieved.
APRIL 2016 // orthotown.com
Not all Class II correctors
are created equal
I've found that American Orthodontics'
PowerScope 2 Class II corrector has some advantages over other Class II correction springs. The
three most notable:
* a more ideal line of action
* uncomplicated, quick installation
* improved patient comfort
PowerScope 2 appliances' more horizontal
line of action means that dental side effects are
minimal compared to other Class II correctors,
which can have a more vertical line of action.
The expected result is less bite opening effects
and less clockwise rotation of the occlusal plane.
Because of this, little additional modification to
my existing setup is needed.
As for patient comfort, the
ball-and-socket-joint design
allows for good range of patient
motion and little to no tissue
irritation noted. I've switched a
few patients from other Class II
correctors to PowerScope 2, and
they've said the new appliance
was more comfortable.
When treating asymmetric or unilateral
Class II cases, the horizontal line of action
helps avoid potential occlusal canting while
correcting the malocclusion. Additionally,
vertical effects on the maxillary molars are
minimal, which means the appliance can be
used without concern for vertical discrepancies
developing between maxillary first and second
Continued on p. 48
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Table of Contents for the Digital Edition of Orthotown April 2016
Orthotown.com Highlights
Embrace Progress: Decisions, Decisions
Industry News
Crossbite with Impacted Canines
Never Promise Non-Extraction Treatment to Phase I Patients
Netherland Doc Combines European, American Treatments
Your More Digital Future
Change the Words, Change Your Results
Protect Your Position in the Mouthguard World
Practice Solutions: American Orthodontics
Poll
Corporate Profi le The One to Watch: Henry Schein Orthodontics leads the field in innovation, ethics and business acumen
American Association of Orthodontics
Ad Index
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