47. Needle point registration with
Gnathometer M
movement right
side
movement left
side
1. Lateral movements right and left
2. Protrusion movements
3. Retrusion movements
Herbert Frick ICDE
49. Evaluation of the Gothic arch tracing
(According to Prof. Gerber)
• Classical pointe form
– The symmetry indicates
an undisturbed
movement sequence in
the joint and uniform
muscle guidance
Herbert Frick ICDE
50. • Classical flat shape
– This figure indicates
pronounced lateral
motion of condyles in the
joint
Herbert Frick ICDE
51. • Asymmetrical shape
– this figure indicates a
pronounced impediment in
the protrusive excursion of
the left mandibular joint
Herbert Frick ICDE
52. • Arrow point is non-existant
– This figure indicates weak to
slack movement, particularly
of retrusive excursion
components; registration
must be repeated and more
concise motion are
requested
Herbert Frick ICDE
53. • The vertical line extends
over the arrow point
– This tracing was created
by either forcefully pulling
or pushing back the
mandible
– The figure may also been
traced with a protruding
mandible
Herbert Frick ICDE
54. • A miniature arrow
– This figure indicates
cramped movements,
poorly placed and painful
registration plates, longterm absence of teeth
with obstructed
movements in the joints,
defective prosthesis, etc.
Herbert Frick ICDE
56. Fixation of the centric occlusion
• Aligning the funnel-shaped
opening of the fixing plate
with the needle point
• Checking the centric with
secured record bite basis
Herbert Frick ICDE
57. • Fabricating the key with fast
setting plaster or hard
silicone
• Marking the central line
Herbert Frick ICDE
71. Set-up of the posterior teeth in the
mandible
Selection criteria for posterior teeth
A bite analysis indicates two the dentist and
dental technician which type of posterior tooth is
best for the respective patient
Herbert Frick ICDE
