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7. Ivoclar
Denar Hanau

13. ! ote the position occlusal plane in relation to the corners
N
of the lips.

16. ! Armamentarium

17. Facebow Transfer Record
! Place notches in the maxillary wax rim as shown

23. Reminder:
After mounting the upper cast,
make sure the incisal guide pin
is at zero and in contact with the
incisal guide table.

25. Establishing the vertical separation between the arches

26. These two measurable lengths of the face are important guides in
making maxillomandibular relation records and are referred to as:
! ertical dimension of rest (VDR)
V
! ertical dimension of occlusion (VDO)
V

27. Defn: Is the vertical separation of the jaws when the opening &
closing muscles of the mandible are at rest in tonic contraction. It
is the length of the face when the mandible is in rest position.
PHYSIOLOGIC REST POSITION:
! n the absence of pathosis the
I
relation is fairly constant throughout
life.
! he position can be accurately
T
recorded and measured within
acceptable limits.
! t is used to determine the vertical
I
dimension of occlusion.

28. “VDR”
! Place the patient in an upright position
! Place marks on the tip of nose and the tip of the chin, on the
greatest height of curvature.
! Make sure the chin is unstrained

29. *No one method for determining rest position can be accepted as
being valid for all pts.; therefore, it is advisable to use several methods
and compare the results

33. “VDO” “VDR”
Interocclusal Rest Space

39. 1. Functional (Chew in)
2. Graphic (Intraoral or extraoral tracings)
3. Physiologic(Interocclusal records)
a. Waxes (i.e Alu-wax)
b. Impression Compounds (ISO compound)
c. ZOE paste
ISO Compound
-waxes are capable of making a record upon
contact and the jaws can be separated at once.
-compound and ZOE must be maintained in
contact until the material is hard
-waxes are easily distorted and unless extreme
care is exercised when the records are
positioned, an error can occur
-compound & ZOE will break before they
will distort

42. *** CR should be recorded at the proper VDO

43. The primary requirements for making
a CR record:
1. Record the horizontal relation of the
mandible to the maxilla at the proper
VDO.
2. Exert equal vertical pressure on the
record base while making the record.
3. Avoid distortion of the record until the
casts have been accurately mounted.
4. A record that cannot be repeated or
verified is not acceptable.

47. Note: The casts and mountings are
smoothed and sanded as shown

50. Orange Note space remaining
20° protrusive insert