Which Statement Is Correct Regarding Custom Impression Trays

question 39

Multiple Choice

Which statement is correct regarding custom impression trays?

• A)They are made from a preliminary model after the dentist has prepared the teeth.
• B)They can be constructed from resin.
• C)They are available only as full-arch trays.
• D)They do not require adhesive if they are smooth surface.

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Definitions:

Myelination

The process of forming a myelin sheath around a nerve to allow it to transmit signals more rapidly.

Reticular Formation

A part of the brain involved in attention, sleep, and arousal.

Electrochemical

Pertaining to the processes that involve both electrical and chemical changes.

Synaptic Cleft

The small gap at a synapse between two neurons, where neurotransmitters are released to transmit signals from one neuron to another.