How does electrode spacing influence EMG biofeedback?
What will be an ideal response?
The further the electrodes are spaced apart, the greater the feedback a patient will receive at a given level of volitional effort. The wide spacing will sample electrical differences over a larger area and more muscles may be contributing to the signal.
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Looking at a full mouth series of radiographs you note that an impacted retained primary root tip can be observed between the right mandibular second premolar and the first molar in the premolar periapical radiograph. You note that the root tip appears to have "moved" mesially in the molar periapical radiograph. Which of the following is true regarding the impacted retained primary root tip?
A) It is located on the buccal. B) It is located on the lingual. C) An additional radiograph would be required to determine the buccal or lingual location of the impacted retained primary root tip.
What model of the CAD/CAM restorative system has the ADA seal of approval?
a. CEREC 3 b. CEREC 2 c. CEREC 1 d. CEREC Standard