Question 1

To provide optimal effectiveness,an ointment type of topical anesthetic should remain on the site of injection for a minimum of:

Accepted Answer

A) 2 to 5 seconds. 
B) 15 to 30 seconds. 
C) 2 minutes. 
D) 3 to 5 minutes. 
A) 2 to 5 seconds. 
B) 15 to 30 seconds. 
C) 2 minutes. 
D) 3 to 5 minutes. B

Question 2

The most common form of topical anesthetic used to control a gag reflex during an intraoral radiographic procedure is:

Accepted Answer

A) spray. 
B) liquid. 
C) ointment. 
D) patch. 
A) spray. 
B) liquid. 
C) ointment. 
D) patch. A

Question 3

In which stage of anesthesia is the patient relaxed and fully conscious?

Accepted Answer

A) Stage III 
B) Stage II 
C) Stage I 
D) Stage IV 
A) Stage III 
B) Stage II 
C) Stage I 
D) Stage IV C

Question 4

The length of time from injection to complete and effective conduction blockage is called:

Accepted Answer

A) induction. 
B) infiltration. 
C) duration. 
D) indication. 
A) induction. 
B) infiltration. 
C) duration. 
D) indication.

Question 5

A scavenger system on a N₂O/O₂ unit is recommended to:

Accepted Answer

A) protect chairside assistants from occupational risks of N2O. 
B) reduce N2O released into treatment room. 
C) protect other dental personnel from occupational risks of N2O. 
D) do all of the above. 
A) protect chairside assistants from occupational risks of N2O. 
B) reduce N2O released into treatment room. 
C) protect other dental personnel from occupational risks of N2O. 
D) do all of the above.

Question 6

The dental assistant is preparing anesthesia for tooth #13.What length needle would be selected?

Accepted Answer

A) 1 5/8 inches 
B) 5/8 inch 
C) 1 inch 
D) 2 inches 
A) 1 5/8 inches 
B) 5/8 inch 
C) 1 inch 
D) 2 inches

Question 7

In patients with an acute infection in a tooth or soft tissue,local anesthetics are not as effective because of an increase:

Accepted Answer

A) of blood flow. 
B) in swelling. 
C) in lymphocytes (white blood cells). 
D) None of the above is correct. 
A) of blood flow. 
B) in swelling. 
C) in lymphocytes (white blood cells). 
D) None of the above is correct.

Question 8

To be certain that the anesthetic solution is not injected into a blood vessel,the dentist:

Accepted Answer

A) uses an aspirating syringe. 
B) always aspirates before depositing any solution. 
C) uses a periodontal ligament syringe. 
D) does both a and b 
A) uses an aspirating syringe. 
B) always aspirates before depositing any solution. 
C) uses a periodontal ligament syringe. 
D) does both a and b

Question 9

What can cause paresthesia?

Accepted Answer

A) Trauma to the nerve 
B) Bleeding into or around the nerve 
C) Contaminated anesthetic solution 
D) All of the above 
A) Trauma to the nerve 
B) Bleeding into or around the nerve 
C) Contaminated anesthetic solution 
D) All of the above

Question 10

The tank or cylinder of ______ is always color-coded blue.

Accepted Answer

A) oxygen 
B) nitrous oxide 
C) helium 
D) hydrogen 
A) oxygen 
B) nitrous oxide 
C) helium 
D) hydrogen

Question 11

Absolute medical contraindications to nitrous oxide use:

Accepted Answer

A) include pregnancy. 
B) include nasal obstruction. 
C) include emphysema and multiple sclerosis. 
D) do not exist, but certain conditions make it a poor choice for some patients. 
A) include pregnancy. 
B) include nasal obstruction. 
C) include emphysema and multiple sclerosis. 
D) do not exist, but certain conditions make it a poor choice for some patients.

Question 12

The hollow center of the needle through which the anesthetic flows is called the:

Accepted Answer

A) needle hub. 
B) bevel. 
C) gauge. 
D) None of the above is correct. 
A) needle hub. 
B) bevel. 
C) gauge. 
D) None of the above is correct.

Question 13

The condition in which numbness remains after the effects of the local anesthetic solutions should have worn off is:

Accepted Answer

A) analgesia. 
B) anesthesia. 
C) paresthesia. 
D) electronic anesthesia. 
A) analgesia. 
B) anesthesia. 
C) paresthesia. 
D) electronic anesthesia.

Question 14

The agents that provide a temporary numbing effect on nerve endings located on the surface of the oral mucosa are:

Accepted Answer

A) local anesthetics. 
B) topical anesthetics. 
C) general anesthetics. 
D) antiseptics. 
A) local anesthetics. 
B) topical anesthetics. 
C) general anesthetics. 
D) antiseptics.

Question 15

The color-coding system for anesthetic cartridges allows the practitioner to select the correct anesthetic solution by distinguishing the correct _____ of the solution.

Accepted Answer

A) ratio 
B) brand 
C) induction time 
D) ratio and brand 
A) ratio 
B) brand 
C) induction time 
D) ratio and brand

Question 16

Which of the following must be used to protect dental personnel from the occupational risks of nitrous oxide by reducing the N₂O released into the treatment room?

Accepted Answer

A) Vacuum system 
B) Scavenger system 
C) Patient mask that fits well and does not leak 
D) Both b and c 
A) Vacuum system 
B) Scavenger system 
C) Patient mask that fits well and does not leak 
D) Both b and c

Question 17

Nitrous oxide/oxygen analgesia use in dentistry dates back to 1844 and is also known as:

Accepted Answer

A) electronic anesthesia. 
B) general anesthesia. 
C) inhalation sedation. 
D) IV sedation. 
A) electronic anesthesia. 
B) general anesthesia. 
C) inhalation sedation. 
D) IV sedation.

Question 18

_____ anesthesia is frequently used on the mandibular teeth and is injected near a major nerve that numbs the entire area served by that nerve branch.

Accepted Answer

A) Block 
B) Infiltration 
C) Innervation 
D) Induction 
A) Block 
B) Infiltration 
C) Innervation 
D) Induction

Question 19

The most frequently used form of pain control in dentistry is:

Accepted Answer

A) local anesthesia. 
B) topical anesthesia. 
C) general anesthesia. 
D) inhalation sedation. 
A) local anesthesia. 
B) topical anesthesia. 
C) general anesthesia. 
D) inhalation sedation.

Question 20

The use of an anesthetic solution without a vasoconstrictor is recommended for patients with a history of:

Accepted Answer

A) stable angina. 
B) recent myocardial infarction. 
C) controlled hypertension. 
D) treated or controlled congestive heart failure. 
A) stable angina. 
B) recent myocardial infarction. 
C) controlled hypertension. 
D) treated or controlled congestive heart failure.

Exam 37: Anesthesia and Pain Control

To provide optimal effectiveness,an ointment type of topical anesthetic should remain on the site of injection for a minimum of:

The most common form of topical anesthetic used to control a gag reflex during an intraoral radiographic procedure is:

In which stage of anesthesia is the patient relaxed and fully conscious?

The length of time from injection to complete and effective conduction blockage is called:

A scavenger system on a N₂O/O₂ unit is recommended to:

The dental assistant is preparing anesthesia for tooth #13.What length needle would be selected?

In patients with an acute infection in a tooth or soft tissue,local anesthetics are not as effective because of an increase:

To be certain that the anesthetic solution is not injected into a blood vessel,the dentist:

What can cause paresthesia?

The tank or cylinder of ______ is always color-coded blue.

Absolute medical contraindications to nitrous oxide use:

The hollow center of the needle through which the anesthetic flows is called the:

The condition in which numbness remains after the effects of the local anesthetic solutions should have worn off is:

The agents that provide a temporary numbing effect on nerve endings located on the surface of the oral mucosa are:

The color-coding system for anesthetic cartridges allows the practitioner to select the correct anesthetic solution by distinguishing the correct _____ of the solution.

Which of the following must be used to protect dental personnel from the occupational risks of nitrous oxide by reducing the N₂O released into the treatment room?

Nitrous oxide/oxygen analgesia use in dentistry dates back to 1844 and is also known as:

_____ anesthesia is frequently used on the mandibular teeth and is injected near a major nerve that numbs the entire area served by that nerve branch.

The most frequently used form of pain control in dentistry is:

The use of an anesthetic solution without a vasoconstrictor is recommended for patients with a history of:

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

Dental Handpieces and Accessories

Moisture 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