Chapter 33
A dental assistant can acquire credentialing of an expanded function through a
Equipment positioned behind the patient’s head is in the
Static Zone
The high speed hand piece uses what type of locking mechanism
Friction grip
The central vacuum compressor provides the suction needed for the
HVE & Saliva ejector
Slight ridges that run mesiodistally in the cervical third of a tooth are
Mamelons
When the dentist must be within the immediate surroundings as a dental assistant performs an expanded function, the dentist is in
Direct supervision
Dental instruments and materials are exchanged in the ____________ zone.
Transfer Zone
What is the locking mechanism for slow speed
Latch type
The oral evacuator is held by the assistant in a ____________ grasp
A space between two teeth in the same arch is a(n)
Diastema
A finger rest is also called the
Fulcrum
Indirect vision
Reflection
Retraction
Tissue protection
Blades on the working end of a finishing rotary instrument that resemble pleats are called
Flutes
The HVE tip is ___________ after a single use.
The smallest teeth in the permanent dentition are the
Mandibular incisors
When completing a specific expanded function, the dental assistant must have knowledge in dental anatomy. Specifics in dental anatomy include
The instrument used primarily for the removal of decay and soft dentin is a(n)
Spoon excavator
A low-speed handpiece operates at speeds up to ______ rpm.
40,000
What type of suction is used for a Full mouth rinse?
Saliva ejector
Which teeth usually have two roots?
The operator’s zone for a right-handed dentist is from ____________ o’clock.
7-12
Which of the following is an example of an accessory instrument?
Articulating paper holder, Spatula, syringe
High speed hand piece operates up to ____ rpms
What type of suction is used for an isolated rinse?
HVE
What is the butter most layer of the tooth structure
Enamel