Question 1

The most commonly used finishing burs are:

Accepted Answer

A) flame-shaped. 
B) round-shaped. 
C) tapered. 
D) all of the above. 
A) flame-shaped. 
B) round-shaped. 
C) tapered. 
D) all of the above.

Question 2

The type of shank fits into a contra-angle attachment for a low-speed handpiece is a:

Accepted Answer

A) friction-grip. 
B) straight. 
C) latch-type. 
D) round-type. 
A) friction-grip. 
B) straight. 
C) latch-type. 
D) round-type.

Question 3

A dental handpiece is identified as a _____ instrument that _____ be sterilized before reuse.

Accepted Answer

A) critical; must 
B) semicritical; must 
C) semicritical; may or may not 
D) noncritical; may not be 
A) critical; must 
B) semicritical; must 
C) semicritical; may or may not 
D) noncritical; may not be

Question 4

The prophylaxis angle attaches to the _____ handpiece and is used to polish the teeth.

Accepted Answer

A) laser 
B) laboratory 
C) high-speed 
D) low-speed 
A) laser 
B) laboratory 
C) high-speed 
D) low-speed

Question 5

The most commonly used bur in the dental laboratory is:

Accepted Answer

A) carborundum. 
B) sandpaper disks. 
C) acrylic bur. 
D) cuttlebone. 
A) carborundum. 
B) sandpaper disks. 
C) acrylic bur. 
D) cuttlebone.

Question 6

A high-speed handpiece can reach how many rotations per minute (rpm)?

Accepted Answer

A) 250,000 
B) 100,000 
C) 450,000 
D) 300,000 
A) 250,000 
B) 100,000 
C) 450,000 
D) 300,000

Question 7

The type of restoration material that requires finishing burs as well as sandpaper disks and cuttlebone point to finish and polish is:

Accepted Answer

A) gold. 
B) stainless steel. 
C) amalgam. 
D) esthetic materials. 
A) gold. 
B) stainless steel. 
C) amalgam. 
D) esthetic materials.

Question 8

Restorative burs are made from what material?

Accepted Answer

A) Gold 
B) Tungsten carbide 
C) Titanium 
D) Stainless steel 
A) Gold 
B) Tungsten carbide 
C) Titanium 
D) Stainless steel

Question 9

The term applied to all rotary instruments that have a sharp cutting head is:

Accepted Answer

A) wheel. 
B) diamond. 
C) bur. 
D) finishing stone. 
A) wheel. 
B) diamond. 
C) bur. 
D) finishing stone.

Question 10

A #170 bur is used to:

Accepted Answer

A) provide angles to the walls of a cavity preparation. 
B) create a shoulder for the margin of a crown preparation. 
C) remove decay. 
D) form internal walls of a cavity preparation. 
A) provide angles to the walls of a cavity preparation. 
B) create a shoulder for the margin of a crown preparation. 
C) remove decay. 
D) form internal walls of a cavity preparation.

Question 11

The three basic parts of a rotary instrument are the:

Accepted Answer

A) handle, shank, and working end. 
B) shank, neck, and head. 
C) neck, head, and handle. 
D) shank, neck, and working end. 
A) handle, shank, and working end. 
B) shank, neck, and head. 
C) neck, head, and handle. 
D) shank, neck, and working end.

Question 12

The handpiece that uses mechanical,radiant water energy and sound vibrations to create a pulsating effect on a tooth surface for the removal of calculus and stains is the _____ handpiece.

Accepted Answer

A) high-speed 
B) laser 
C) low-speed 
D) ultrasonic 
A) high-speed 
B) laser 
C) low-speed 
D) ultrasonic

Question 13

The most frequently used device in restorative dentistry is the:

Accepted Answer

A) amalgamator. 
B) dental handpiece. 
C) prophy angle. 
D) x-ray machine. 
A) amalgamator. 
B) dental handpiece. 
C) prophy angle. 
D) x-ray machine.

Question 14

The _____ handpiece operates from air pressure and reaches speeds up to 450,000 rpm.

Accepted Answer

A) high-speed 
B) laser 
C) ultrasonic 
D) laboratory 
A) high-speed 
B) laser 
C) ultrasonic 
D) laboratory

Question 15

Advantages of a laser handpiece over a high-speed handpiece include:

Accepted Answer

A) faster preparation time. 
B) immediate vaporization of previous amalgam restorations. 
C) use of an air turbine. 
D) treatment that is usually painless, so anesthesia is unnecessary. 
A) faster preparation time. 
B) immediate vaporization of previous amalgam restorations. 
C) use of an air turbine. 
D) treatment that is usually painless, so anesthesia is unnecessary.

Question 16

When cleaning a dental handpiece,it is important to:

Accepted Answer

A) always lubricate the handpiece before sterilization. 
B) always lubricate the handpiece after sterilization. 
C) carefully follow the manufacturer's instructions. 
D) never use a lubricant on the handpiece. 
A) always lubricate the handpiece before sterilization. 
B) always lubricate the handpiece after sterilization. 
C) carefully follow the manufacturer's instructions. 
D) never use a lubricant on the handpiece.

Question 17

The most varied category of rotary instruments is:

Accepted Answer

A) diamond rotary instruments. 
B) laboratory burs. 
C) carbide burs. 
D) abrasive rotary instruments. 
A) diamond rotary instruments. 
B) laboratory burs. 
C) carbide burs. 
D) abrasive rotary instruments.

Question 18

A finishing bur has _____ blades on the working end than a restorative bur because it is used for final stage polishing of a restoration.

Accepted Answer

A) fewer 
B) more 
C) the same number of 
A) fewer 
B) more 
C) the same number of

Question 19

Which of the following statements is true regarding the different types of shanks?

Accepted Answer

A) The long, straight shank is used in the straight-line attachment, and fits on the high-speed handpiece. 
B) The long, straight shank is used in the angle attachment, and fits on the low-speed handpiece. 
C) The latch-type shank has a small groove at the end that mechanically locks into the contra-angle attachment, and fits on the high-speed handpiece. 
D) The friction-grip shank is short and smooth and has no retention grooves in the end. The shank is held in the high-speed handpiece by the creation of friction that grips the entire shank. 
A) The long, straight shank is used in the straight-line attachment, and fits on the high-speed handpiece. 
B) The long, straight shank is used in the angle attachment, and fits on the low-speed handpiece. 
C) The latch-type shank has a small groove at the end that mechanically locks into the contra-angle attachment, and fits on the high-speed handpiece. 
D) The friction-grip shank is short and smooth and has no retention grooves in the end. The shank is held in the high-speed handpiece by the creation of friction that grips the entire shank.

Question 20

A porcelain adjustments is made with a _____ handpiece.

Accepted Answer

A) high-speed 
B) ultrasonic 
C) low-speed 
D) laser 
A) high-speed 
B) ultrasonic 
C) low-speed 
D) laser

Exam 35: Dental Handpieces and Accessories

The most commonly used finishing burs are:

The type of shank fits into a contra-angle attachment for a low-speed handpiece is a:

A dental handpiece is identified as a _____ instrument that _____ be sterilized before reuse.

The prophylaxis angle attaches to the _____ handpiece and is used to polish the teeth.

The most commonly used bur in the dental laboratory is:

A high-speed handpiece can reach how many rotations per minute (rpm)?

The type of restoration material that requires finishing burs as well as sandpaper disks and cuttlebone point to finish and polish is:

Restorative burs are made from what material?

The term applied to all rotary instruments that have a sharp cutting head is:

A #170 bur is used to:

The three basic parts of a rotary instrument are the:

The handpiece that uses mechanical,radiant water energy and sound vibrations to create a pulsating effect on a tooth surface for the removal of calculus and stains is the _____ handpiece.

The most frequently used device in restorative dentistry is the:

The _____ handpiece operates from air pressure and reaches speeds up to 450,000 rpm.

Advantages of a laser handpiece over a high-speed handpiece include:

When cleaning a dental handpiece,it is important to:

The most varied category of rotary instruments is:

A finishing bur has _____ blades on the working end than a restorative bur because it is used for final stage polishing of a restoration.

Which of the following statements is true regarding the different types of shanks?

A porcelain adjustments is made with a _____ handpiece.

History of Dentistry

The Professional Dental Assistant

The Dental Healthcare Team

Dental Ethics

Dentistry and the Law

General Anatomy

General Physiology

Oral Embryology and Histology

Head and Neck Anatomy

Landmarks of the Face and Oral Cavity

Overview of the Dentitions

Tooth Morphology

Dental Caries

Periodontal Disease

Preventive Dentistry

Nutrition

Oral Pathology

Microbiology

Disease Transmission and Infection Prevention

Principles and Techniques of Disinfection

Principles and Techniques of Instrument Processing and Sterilization

Regulatory and Advisory Agencies

Chemical and Waste Management

Dental Unit Waterlines

Ergonomics

The Patient Record

Vital Signs

Oral Diagnosis and Treatment Planning

The Special Needs and Medically Compromised Patient

Principles of Pharmacology

Assisting in a Medical Emergency

The Dental Office

Delivering Dental Care

Dental Hand Instruments

Moisture Control

Anesthesia and Pain Control

Foundations of Radiography, Radiographic Equipment, and Radiation Safety

Digital Imaging, Dental Film, and Processing Radiographs

Legal Issues, Quality Assurance, and Infection Prevention

Intraoral Imaging

Extraoral Imaging

Restorative and Esthetic Dental Materials

Dental Liners, Bases, and Bonding Systems

Dental Cements

Impression Materials

Laboratory Materials and Procedures

General Dentistry

Matrix Systems for Restorative Dentistry

Fixed Prosthodontics

Provisional Coverage

Removable Prosthodontics

Dental Implants

Endodontics

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Orthodontics

A dental handpiece is identified as a _ instrument that _ be sterilized before reuse.