direct measures part 2

Optotrak is a

• External Point-tracking system

• Internal Point-tracking system

• External & Internal Point-tracking system

• none

X-ray Microbeam collect three-dimensional data.

• True

• False

Electrodes in the electropalatography are

• affixed on lips

• affixed with dental adhesive on tongue

• affixed with dental adhesive on palate

• Embedded in pseudo-palatal

Electropalatography measures

• tongue– palate pressure

• relative motion of tongue wrt palate

• tongue-palate contact

• tracks tissue points

Using electropalatography, one can measure contact between the tongue and velum

• True

• False

Pressure palatography (PPG) is based on

• A. Strain gauge deformation

• B. change in shape

• C. both A & B

• D. surface on/off contact

In electropalatography, jaw lowering leads to loss of information.

• True

• False

Optotrak measures motion of

• teeth, palate and tongue

• lip, tongue and palate

• lip, jaw and face

• lip, teeth and tongue

optotrak uses ______ to record movements

• electromagnetic induction

• x-rays

• pellets

• infrared rays

The radiation dosage in the X-ray microbeam is well below that of dental X-rays.

• True

• False