How long should etch remain on the tooth prior to rinsing?

A) 5 seconds
B) 10–15 seconds
C) 20–30 seconds
D) 40–50 seconds


C
Explanation: C) A gel etchant would be placed directly on the tooth by the supplied syringe/canula delivery system. The etch time is typically 20–30 seconds.

Health Professions

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Which of the following is NOT one of the principles of proper body mechanics when pulling or pushing a load?

a. Keep feet together. b. Keep the back straight. c. Keep close to the object you are moving. d. Keep feet apart.

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Assignment of an APGAR score is based on five elements: appearance (color), pulse (heart rate), grimace (reflex irritability), activity (muscle tone), and ____________________.

Fill in the blank(s) with the appropriate word(s).

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Fibrous tissue that is used to attach muscle to bone is called:

A. cartilage. B. ligament. C. smooth muscle. D. tendon.

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Computed tomography sections are available as

a. coronal. b. transverse. c. sagittal. d. all of the above

Health Professions