Gamma CADIAX 4 A, Operating Instructions Manual

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Background information
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bow that is usually used for anatomic recordings and therefore easy to find and adjust to. Recordings on
the anatomical hinge axis can be carried out with the devices CADIAX compact 2 as well as CADIAX 4.
The advantage of recording on the anatomic hinge axis
is in its simple and quick application. While the devi-
ation from the exact hinge axis inevitably leads to a dis-
tortion of the curve characteristics, its effects on the
movements used for articulator programming, namely
protrusion and mediotrusion, are tolerable.
However, when recording condylography for the purpose
of functional diagnostics and occlusion analysis, the ex-
act determination of the patient's individual hinge axis is
imperative. In this use case, hinge axis deviations of just
a few millimeters in combination with the rotational com-
ponent can cause significantly different movement pat-
terns in the tooth area.
The effects of various deviations from the exact hinge
axis onto the movements of dental cusps.
7.3 Immediate side shift (ISS)
Some articulator systems divide the transversal Bennett curve into an immediate and a subsequent pro-
gressive side shift movement. These two phases of the movement are referred to as "immediate side
shift" (ISS) and "progressive side shift" (PSS), respectively. The separation is made at a particular dis-
tance measured in X direction, which is referred to as "ISS threshold" (ISS-TH).
In the articulator settings calculated by the software, the ISS describes the maximum transversal dis-
placement up to the specified threshold distance. The PSS however is an angle value equatable to the
transversal condylar inclination (TCI), not including the initial displacement.
The ISS threshold (ISS, here: 0.5 mm) separates the Bennett movement in immediate (ISS) and progressive side shift (PSS).