Ch.44 Flashcards
(32 cards)
What base is in/sulated and used for sensitive teeth (sedative base)
Zinc oxide-eugenol cement
What would you select as an insulating base under a composite?
Glass ionomer
Insulating base material should cover the entire _________ to a thickness of ____ mm
Pulpal floor; 1 to 2
A necessary step in a preparation for dentin bonding is :
Etch and removal of the smear layer
Which pulpal stimuli is caused by trauma?
Mechanical
Another word for dental bonding is :
Dental adhesion
Etching is done with :
Phosphoric acid
A properly etched tooth appears:
Frosted
Which of the following is true of the bonding process?
Avoid over drying, product works best slightly moist
Varnish should be placed on the ________ of the tooth cavity preparation
Walls, floor, margins
Varnish is placed in :
Two light coats after a base.
Which of these is the most concentrated version of fluoride?
Fluoride varnish
Desensitized is placed :
After rinsing and lightly drying the tooth
ZOE mixed to a BASE consistency should not be:
Rolled into a large ball
Dr asked for a base that will have a slow release of fluoride. Which one do you choose?
Glass ionomer
Which base has to sit for 5 minutes before placement?
Polycarboxylate
All of the following statements are true about the application of etchant material except :
The tooth must be thoroughly dried.
Calcium hydroxide :
Helps form secondary dentin
How long do we leave etch on the tooth.
15-20 seconds
Etch removes the _______ layer
Smear
The smear layer is composed of :
Debris/tooth particles left on the tooth.
A desensitized is incited for :
Amalgam fillings
Dental varnish is used to :
Seal dentin tubules
Failure to place a protective base under a restoration can result in :
Post operative sensitivity and damage to the pulp.
