Retainers:
Used to stabilize dentition, retainers are the most commonly fabricated
appliance in the orthodontic laboratory. At Fox Valley Ortho Lab
we offer a plethora of retainer options that can be tailored to your
needs and preferences.
We maintain detailed records of your retainer design preferences.
Once you establish your standard design preferences with our
representatives there is no need to give detailed instructions with each
prescription.
Fox Valley Orthodontic Laboratory can fabricate virtually any
combination of components into most retainers including clasps, springs,
screws, loops, habit breakers & acrylic features such as bite plates &
occlusal coverage. For ideas see our options page or call for a
consultation and we will make recommendations based on your needs.
| Hawley
|
The standard Hawley is formed with an 0.030"
cuspid to cuspid archwire that incorporates adjustment loops as it
crosses the occlusion and is anchored into an acrylic plate.
The archwire is typically formed to an average arch shape relative
to the patients anterior alignment. Virtually any optional
components may be incorporated into this appliance |
|
Circumferential
(Wraparound)
|
Similar to the Hawley design the Circumferential
retainer uses an 0.032" wire that continues along the posterior
teeth and forms a circumferential clasp around the first or second
molar. Stabilizing wires may be incorporated into the design
to support the archwire. This appliance is preferred when there
is limited interproximal-occlusal space or minor spaces that need to be
closed. It is also used in extraction cases to prevent wire
from passing through the extraction site. |
| Soldered Circumferential
|
The Circumferential retainer may also be
soldered to Adams or C-Clasps for greater stability and retention. |
|
Astics
|
The Astics retainer uses an esthetically clear
archwire, this clear archwire is non-yellowing and extremely
durable. This retainer may be formed as a circumferential or
soldered circumferential design. With adjustment loops in the
posterior segments the labial bow of this appliance may be adjusted
through the loops only. |
| Ricketts
|
The Ricketts uses an 0.028" wire that is formed
Cuspid to Cuspid then doubled back to pass over the occlusion
between the lateral incisors and cuspids where there is also an
adjustment loop. The Ricketts can be used if interocclusal
space distal to the cuspid is limited or if greater anterior
retention is needed. It may also be used in first bicuspid
extraction cases to avoid wire from passing through the extraction
site. |
Fixed Lingual Retainer
|
Fixed lingual retainers are formed with a 0.025" wire contoured to
the linguals of the teeth. This "Permanent" retainer has mesh
pads on the cuspids and is delivered to your practice with an easily
removable matrix for easy insertion. This may be fabricated
for either arch in any tooth to tooth length and with multiple mesh
pad locations. If prescribing maxillary fixed retainers please
include lower model and bite registration so we may check occlusion
for incisal interference.
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Thermoformed Retainers:
At Fox Valley Ortho Lab we use Biostar positive pressure thermoforming
equipment for superior adaptation and clarity. This method is
superior to vacuum forming because it heats the tissue side of the
material and uses up to 90 psi of positive pressure to accurately form
the material over the model, where as the cheaper & more common vacuum
machine heats the wrong side of the material and only uses 15 psi of
vacuum to form the appliance.
|
|
Invisible
|
A long lasting 1.0mm thick (other thicknesses
are available) aesthetically clear
sheet is formed over the full arch. This appliance may be used for minor tooth
corrections of up to 1mm of movement on up to two teeth per arch is
possible, though multiple appliances can be used to correct more
dramatic irregularities. Pontic teeth may also be incorporated
into this appliance.
Optionally a cuspid to cuspid version of the
Invisible retainer will allow posterior teeth to settle into their
centric relations. |
|
Osamu
|
The Osamu is a full arch combination hard soft
appliance. A 1.5mm flexible EVA material lines the lingual and
facial tooth contours and alveolar mucosa. This is covered
with 1.0mm polycarbonate. The dual layer provides for easier
insertion and removal as well as greater comfort and durability.
It also allows for greater tooth movement if desired, up to 1.5mm of
movement per tooth on up to four teeth per arch. |
|
Theroux Phase One
|
Used as an alternative to Hawley retainers on
mixed dentition cases the Theroux phase one overcomes many of the
fit problems associated with Hawley retainers when used in mixed
dentition cases. Such as difficulty in clasping the short
clinical crown with very little undercuts or clasping primary molars
that will soon exfoliate, also interference of the Hawley labial bow
during eruption of the canines.
The Theroux Phase One is rigid enough to maintain palatal expansion
and durable enough to last several years. The reinforced 2mm
thick palatal area can be trimmed to allow for eruption while the
incisors and first permanent molars are covered in 1.0mm
thermoformed acrylic sheet. |
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