4000 series ARTICULATOR / dental crown & bridge courses /certified fixed orthodontic courses by Indian dental academy

4000 Series
Articulator Manual

INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com


Articulator Accessories
#8533 Dovetail Incisal Block

#8526F Plastic Incisal Guide

#2460 Adjustable Incisal Guide


Mounting Plates


#8585 Face-Bow Fork
Support for Direct Mounting

#8587 Face-Bow Fork Support
for Indirect Mounting

#28706 “QuickMount”
Face-Bow Fork Support



Universal Tote Bag


#8609 Face-Bow Fork
#8631 Face-Bow Fork (Offset Stem)

Face-Bow Forks


Obtaining a Face-Bow
Registration
•Preparing the Face-Bow
•Preparing the Face-Bow Fork
•Positioning the Face-Bow on the Patient
•Removing the Face-Bow from the Patient



Items needed to obtain a face-bow registration


Preparing the Face-Bow


Using an elastic band will aid in manipulation of the face-bow.


Center Nasion between dimples on the crossbar.

Thumb Screws

Loosen the Center Locking Knob

Loosen the #8640 T-Screw



Loosen the #8643 T-Screw


Preparing the Face-Bow Fork

Ensure the material has filled in on the
underside of the bite fork to secure the
material in place.
Add sufficient amount of elastomeric
material to the top surface of the bite
fork.


Position the bite fork so that the midline of the bite fork aligns with the
facial midline and support the fork until the material has set.

Some clinicians like to use cotton rolls to support the bite fork until the
material has set.

Bite Fork

Inspect the registration for any soft tissue or deep occlusal
registration interferences.

Positioning thewww.indiandentalacademy.com
face-bow on the patient

Reposition the Bite Fork


Have patient place each earpiece in the external auditory meatus..

Start toggle assembly ontowww.indiandentalacademy.com the horizontal cross bar
bite fork, making sure
is above the bite fork.

Push the toggle back on the fork shaft until it is near, but not touching the lips.


Center nose piece on patient’s nasion.

A permanent intercondylar width of
110 mm is incorporated into the
Series 4000 Articulator.

110mm

This corresponds to the “M” setting
found on the face-bow.


Support the Face-Bow

Tighten the #8640 T-screw

Tighten the center locking knob


Tighten the #8643 T screw on the vertical rod.


Removing the face-bow

Loosen the #8604 face-bow knob.


Have the patient gently pull the ear pieces out of their ears.

Obtaining
Interocclusal Records
There are several materials available that may
be used to make interocclusal records. There
are also different techniques and philosophies
for making these records. The material selected
should complement the particular technique used.
The technique suggested in this manual in one
method and Whip Mix does not imply that this is
the only correct method.
The following interocclusal records should be
utilized to relate the mandibular cast to the
maxillary mounting and to program the condylar
guidance of the articulator.
Centric Relation and/or Maximum Intercuspation
Right lateral
Left lateral www.indiandentalacademy.com
Protrusive (optional)

Obtaining

Centric Relation and/or
Maximum Intercuspation


Obtaining Interocclusal Records

Placing an anterior deprogramming device over the incisal edge of the
maxillary central


Manipulate the mandible into centric relation and slowly arc the
mandible closed.

Instruct the patient to move his mandible forward, back, and squeeze. This
cycle should be repeated once a minute for a total of ten minutes. The patient
should be instructed to bite with only enough force to hole the leaf gauge in
position. During the ten minute period verify that posterior disocclusion is
maintained.

If you haven’t done so already trim the wax record.

Warm the wax record in water until the tooth-contacting edges are soft
enough to offer no resistance.

Position the wax record against the maxillary posterior teeth. Do not press
against the teeth or you may www.indiandentalacademy.com
perforate the thin record.

Manipulate the mandible into centric relation and slowly arc the mandible
closed. The maxillary and mandibular posterior teeth will automatically create
“cuspal indents” in the wax.

Remove and examine the centric
relation wax record.

Maintain position while
cooling the wax.


Apply interocclusal registration
material. Use enough material to
cover the occlusal surfaces and
incisal edges of the mandibular teeth.
Have patient close into a position of
maximum intercuspation.


Remove and examine the maximum intercuspation record.

Obtaining

Right and Left lateral
Records


Lateral Records
Trim wax record to the size of the of the centric relation record

The thickness on the non working
Manipulate the mandible into
side may have to be increased to
centric relation and caution the
achieve “cuspal indents” of the
patient to keep teeth separated to
posterior teeth.
avoid contact with the wax.

Repeat for the left lateral record

Protrusive Records

Manipulate the mandible into centric relation and caution the patient to keep
their teeth separated to avoid contact with the wax.

Have the patient close into a position of maximum intercuspation and verify
relative tooth position noted earlier.

Registration records should be sterilized using an infection control spray. Store
wax records in room temperature water until ready for use.

Direct Mounting the
Maxillary Cast on the
4000 Series Articulator


Center the plastic incisal guide table so that the rounded end of the incisal
guide pin rests in the center of the table.

Remove the incisal guide pin.
Loosen the #8511 incisal
guide pin screw.


You may want to set the articulator with the upper member off of the lower
frame. To remove the upper member, press the push rod located on the side
of the fossa element with your thumb and rotate the locking tab backwards.

Set each condylar guide to 30° on the condylar inclination scale and tighten the
black clamp knob. Next set each progressive side shift guide to the 0° mark and
tighten the side shift guide locking screw.

Place clean mounting plates on the
upper and lower frames.


If using the QuickMount Magnet System as is demonstrated here, place a metal
disk into the plastic mounting plate.

Placing a Direct Mounting
Face-Bow on the Articulator


Slide the Nasion Relator Assembly over to the right side of the cross bar.
Loosen the center face-knob.

Position the brass mounting pin located on the outer edge of the upright of the
lower frame into the hole on the medial side of each earpiece. Be sure the earwww.indiandentalacademy.com
pieces are pressed all the way against the side of the lower frame.

With the earpieces correctly seated, tighten the center thumb screw to lock the
face-bow in place. If you’re using a metal face-bow you will need to tighten the
three thumbs screws on top of the face-bow.

Mounting the Maxillary
Cast with a Direct
Mounting Face-Bow



Soak the Maxillary cast in water.


Place indices on the base of the cast.

Make sure the cast seats firmly into the record. Apply mounting stone to the
base of the cast and onto the mounting plate.

Close the upper frame to contact the cross bar, bringing the mounting stone on
the two surfaces together. Do not use too thick a mix of mounting stone or
attempt to apply force whenwww.indiandentalacademy.com begun to set. Hold the upper
the stone has already
frame in position until the mounting stone has set.

It is not necessary that the mounting stone be smooth and all voids filled with the
first mix. Many clinicians prefer to utilize a second mix to fill the voids after the
first mix has set.

Indirect Mounting the
Maxillary Cast on the
4000 Series Articulator



Whip Mix Indirect Mounting Face-Bow

Take the registration of thewww.indiandentalacademy.com
patient in the usual manner as described earlier.

Preparing the Face-Bow
and Articulator
for Mounting Casts


Remove the face-bow from the patient. Next, unscrew the #8604 Locking Screw
on the cross bar to release the transfer assembly which holds the bite registration
from the face-bow.

Position the #8686 Support Bar onto the top of the transfer assembly and secure
in place with the same #8604 Locking Screw.
Remove the upper frame of the articulator from the lower frame and then remove
the incisal guide pin.

Placing the Face-Bow
Transfer Assembly
on the Articulator


Place the #9176Q Transfer Base Assembly for the QuickMount magnetic
system on the articulator. Secure the Transfer Base Assembly to the magnet
using the #28706 Face-Bow Fork Support.

Insert the vertical rod of the transfer assembly into the transfer base and lower it
until the bottom of the vertical rod contacts the transfer base. Tighten the #9184
Clamp Screw so the vertical rod fits securely in the transfer base.

Ensure the mounting surfaces are clean before placing the mounting plates on
the articulator.

Place the upper frame of the articulator onto the lower frame, so the bottom of
the metal boss now rest on the #8686 Support Bar. Engage the locking tabs to
secure the upper frame in position.

With the bite fork secured in place and supported with the #28706 Face-Bow
Fork Support, place the maxillary cast into the bite registration.

Check for proper clearance. www.indiandentalacademy.com
You can now add mounting stone to upper cast
and mounting plate as described earlier.

Mounting the Mandibular
Cast


The upper and lower frame are made parallel by aligning the top of the pin
boss with the dark line which completely encircles the pin. The pin should be
adjusted 3 to 5 millimeters above the zero mark to compensate for the
thickness of the centric relation record used to mount the lower model.

With the locking tabs in the locked position and the side shift guides set to the
“0” mark, set the articulator upside down and place the interocclusal record on
the maxillary cast. Place the www.indiandentalacademy.comthe record and check for
mandibular cast onto
stability.

Place mounting stone onto the base of the cast and onto the mounting plate and
hinge the lower frame closed until the incisal guide pin meets the incisal guide
block. Make sure the condylar elements are seated flush against the posterior
and superior walls of the condylar guides.

Once the stone has reached its initial set remove the material used to stabilize
the cast.

Remove the interocclusal record. Loosen the incisal guide pin screw and make
sure the upper and lower cast contact. Retighten the incisal guide pin screw.

Many clinicians use a second mix to clean up the mounting and give it a clean
and professional appearance. Make sure the incisal guide pin is positioned in
the center of the incisal guide table.

Setting the Condylar Guidance
of the Articulator Using
Lateral Interocclusal Records


After removing the CR or MI registration material, release the locking tabs on
the right and left fossa elements.

Set both condylar guides to the 0° setting on the condylar inclination scale
and set the progressive side shift guides to their most open position. Firmly
tighten the left condylar guide locking screw and lightly secure the right condylar
guide locking screw.


Loosen and raise the incisal guide pin screw to prevent any interference.


Carefully seat the left lateral excursion interocclusion record on the upper cast.

While lightly holding the articulator, gently seat the lower cast into the left lateral
record and hold the cast in position.

Note: The cast should seat evenly into the left lateral record. If the posterior
teeth are raised out of the record the condylar inclination needs to be adjusted
until the teeth are seated evenly in the record.

To set the inclination of the right condylar guide, carefully loosen the clamp
knob and rotate the guide until the teeth of the upper cast seat evenly in the
lateral record.

Tighten the clamp knob to lock the guide into position.
DO NOT USE EXCESSIVE PRESSURE when tightening the clamp knob.

Setting the Progressive
Side Shift of the Articulator
Using Lateral Interocclusal
Records


To set the right progressive side shift guide, loosen the right side shift holding
screw and move the right side shift guide until it touches the side of the
condylar element. Retighten the side shift screw.

After the right condylar guidance has been recorded, the condylar guidance
should be neutralized as previously described. Set the left condylar guidance
using the right lateral excursion record.

Many wish to set the condylar
inclination of the articulator with
a protrusive record. To utilize
the protrusive record, first
neutralize the condylar inclination
and progressive side shift settings.
Place the protrusive record on the
inverted upper frame of the
articulator and gently seat the
lower cast into the protrusive
record.
Both condylar elements will have
moved away from the posterior
surfaces of their respective condylar guides.

Using sight and touch, rotate the left
condylar guide until the teeth on the
left side of the upper cast seat evenly
into the protrusive record, then
tighten the #2432 Clamp Knob.
Record the reading and repeat the
procedure on the right side.
Note: The latereal records are used
to determine the progressive side shift settings.

Technique for Fabrication of a
Custom Incisal Guide Table


An acrylic custom incisal guide table may be used to make a permanent disocclusive record of a specificwww.indiandentalacademy.com
case or to prevent possible abrasion of the stone
casts during manipulation of the articulator.

The Dovetail Incisal Block is a convenient accessory which has been designed
so that a custom acrylic guide may be easily removed and can later be easily
replaced.

Materials needed for fabrication of a custom incisal guide table.

Raise the incisal guide pin 2-3mm and release the centric latch.

Lubricate the rounded end of the incisal guide pin. Next, prepare the surface
of the incisal guide table with 1-2 drops of self-curing acrylic monomer.

Mix enough acrylic to cover the incisal guide table to approximately a 6 mm
thickness.

Once the acrylic has reached a doughy state, place it onto the incisal guide
table.

Close the articulator in centric position.

Move the upper frame to produce a straight protrusive movement terminating in
an end-to-end position.

From centric, move the upper member to give a straight right lateral movement.

Then, move the upper member to give a straight left lateral movement.

Move through all intermediate excursions between the lateral and protrusive
positions. Repeat the excursive movements until the acrylic has reached a firm
stable consistency.

Final custom incisal guide table.

Thank you
For more details please visit


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