Weeks 11, 12, 13 Flashcards

1
Q

What are some contraindications to taking an alginate impression?

A

Upper respiratory problems
Lung problems
Eye problems

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2
Q

What is the mixing time for regular set alginate?

A

1 minute

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3
Q

What is the setting time for regular set alginate?

A

3 minutes, 30 seconds

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4
Q

What is the total working time for regular set alginate?

A

4 minutes, 30 seconds

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5
Q

What do you do immediately after taking alginate impression?

A

Rinse with water, then birex. Wrap in a moist paper towel and let set form 10 minutes, then place in a plastic bag

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6
Q

Imhibition

A

Impression takes in water

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7
Q

Syneresis

A

Water evaporates from the impression

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8
Q

How soon do you want to pour stone into the impression?

A

ASAP

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9
Q

How long does casting stone take to set?

A

45 minutes

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10
Q

How wide should a cast be?

A

20mm from occlusal surface to base

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11
Q

Protrusive movement

A

The mandible moves forward until the incisors are touching

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12
Q

Lateral excursive movement

A

Mandible moves laterally until the canine cusp tips are touching

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13
Q

How to manipulate a patient into CR?

A

Deprogram pt by inserting cotton roll between anteriors for 5 minutes. Then gently manipulate pt’s mandible to open and close tightly to find CR. Place thumbs on pt’s chin and hold them downwards while using fingers to hold the body of the mandible superiorly

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