Question 1

Local anesthetic agents are not effective when injected into an area where a tooth or soft tissue is infected because:

Accepted Answer

A) increased swelling in tissue dilutes the anesthetic. 
B) an increase of lymphocytes, in the area to combat the infection, will interfere with the effectiveness of the anesthetic solution. 
C) increased blood flow in an area of infection rapidly carries the anesthetic away from the area. 
D) the infection causes local temperature to rise above the point where local anesthetic is effective. 
A) increased swelling in tissue dilutes the anesthetic. 
B) an increase of lymphocytes, in the area to combat the infection, will interfere with the effectiveness of the anesthetic solution. 
C) increased blood flow in an area of infection rapidly carries the anesthetic away from the area. 
D) the infection causes local temperature to rise above the point where local anesthetic is effective.

Question 2

A 30-gauge needle would be a _____ needle.

Accepted Answer

A) thicker 
B) thinner 
C) large 
D) longer 
A) thicker 
B) thinner 
C) large 
D) longer

Question 3

Used or contaminated needles and cartridges are discarded in the:

Accepted Answer

A) trash can. 
B) biohazard bags. 
C) sharps container. 
D) medical waste. 
A) trash can. 
B) biohazard bags. 
C) sharps container. 
D) medical waste.

Question 4

The anesthetic syringe consists of all of the following parts except a:

Accepted Answer

A) harpoon. 
B) rubber stopper. 
C) thumb ring. 
D) piston rod. 
A) harpoon. 
B) rubber stopper. 
C) thumb ring. 
D) piston rod.

Question 5

The type of local anesthetic that would be selected for a patient with a medical history that indicates a recent myocardial infarction is:

Accepted Answer

A) lidocaine with 1:100,000 epinephrine. 
B) lidocaine with 1:50,000 epinephrine. 
C) mepivacaine with 1:20,000 Neo-Cobefrin. 
D) Carbocaine plain. 
A) lidocaine with 1:100,000 epinephrine. 
B) lidocaine with 1:50,000 epinephrine. 
C) mepivacaine with 1:20,000 Neo-Cobefrin. 
D) Carbocaine plain.

Question 6

What nerve is anesthetized for tooth #31?

Accepted Answer

A) Buccal nerve 
B) Anterior superior alveolar nerve 
C) Inferior alveolar nerve 
D) Incisive nerve 
A) Buccal nerve 
B) Anterior superior alveolar nerve 
C) Inferior alveolar nerve 
D) Incisive nerve

Question 7

Which of the following choices represents the lowest ratio,meaning greatest concentration,of vasoconstrictor in local anesthetic?

Accepted Answer

A) 1:20,000 
B) 1:50,000 
C) 1:100,000 
D) 1:200,000 
A) 1:20,000 
B) 1:50,000 
C) 1:100,000 
D) 1:200,000

Question 8

Anesthesia is defined as:

Accepted Answer

A) the passage of a substance into the interior of another by solution or penetration. 
B) a substance for killing microorganisms on the skin. 
C) the temporary loss of feeling or sensation. 
D) the act of inhalation, or ingestion, as of a foreign object. 
A) the passage of a substance into the interior of another by solution or penetration. 
B) a substance for killing microorganisms on the skin. 
C) the temporary loss of feeling or sensation. 
D) the act of inhalation, or ingestion, as of a foreign object.

Question 9

The lengths of the needles used in dentistry are:

Accepted Answer

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

Question 10

The different levels of consciousness and unconsciousness are referred to as stages of anesthesia; these stages include all of the following except stage:

Accepted Answer

A) I (analgesia). 
B) II (excitement). 
C) III (cardiac arrest). 
D) Both a and b are correct. 
A) I (analgesia). 
B) II (excitement). 
C) III (cardiac arrest). 
D) Both a and b are correct.

Question 11

The gauge of the needle refers to the thickness of the needle; the larger the gauge,the _____ the needle.

Accepted Answer

A) thinner 
B) stiffer 
C) thicker 
D) thinner and stiffer 
A) thinner 
B) stiffer 
C) thicker 
D) thinner and stiffer

Question 12

Injecting the anesthetic solution directly into the tissue at the site of the dental procedure,generally used on the maxillary teeth,is called a(n):

Accepted Answer

A) inferior alveolar nerve block anesthesia. 
B) block anesthesia. 
C) infiltration anesthesia. 
D) incisive nerve block. 
A) inferior alveolar nerve block anesthesia. 
B) block anesthesia. 
C) infiltration anesthesia. 
D) incisive nerve block.

Question 13

The time from when the local anesthetic takes complete effect until the complete reversal of anesthesia is the called the _____ of the anesthetic agent.

Accepted Answer

A) induction 
B) life span 
C) duration 
D) innervation 
A) induction 
B) life span 
C) duration 
D) innervation

Question 14

Which of the following ratios of vasoconstrictor to local anesthetic would contain the highest level of vasoconstrictor?

Accepted Answer

A) 1:100,000 
B) 1:20,000 
C) 1:50,000 
D) 1:200,000 
A) 1:100,000 
B) 1:20,000 
C) 1:50,000 
D) 1:200,000

Question 15

Most surgical procedures are scheduled in the early morning,because:

Accepted Answer

A) patients must not eat or drink for 8 to 12 hours before receiving general anesthesia. 
B) the treatment rooms have greater sterility. 
C) the dental team works better in the morning. 
D) it is easier to work in emergency appointments in the early afternoon. 
A) patients must not eat or drink for 8 to 12 hours before receiving general anesthesia. 
B) the treatment rooms have greater sterility. 
C) the dental team works better in the morning. 
D) it is easier to work in emergency appointments in the early afternoon.

Question 16

Which of the following types of commonly prescribed sedatives for dental patients is indicated for children?

Accepted Answer

A) Secobarbital (Seconal) 
B) Chlordiazepoxide (Librium) 
C) Diazepam (Valium) 
D) Chloral hydrate (Noctec) 
A) Secobarbital (Seconal) 
B) Chlordiazepoxide (Librium) 
C) Diazepam (Valium) 
D) Chloral hydrate (Noctec)

Question 17

During the loading of an anesthetic syringe,the _____ is loaded first.

Accepted Answer

A) needle 
B) anesthetic cartridge 
C) Both a and b are correct. 
A) needle 
B) anesthetic cartridge 
C) Both a and b are correct.

Question 18

An anesthetic injection for a procedure for tooth #19 would require what size needle?

Accepted Answer

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

Question 19

Nitrous oxide oxygen administration always begins and ends with:

Accepted Answer

A) the patient deep breathing. 
B) the patient breathing 100% oxygen. 
C) taking the patient's blood pressure and temperature. 
D) both b and c 
A) the patient deep breathing. 
B) the patient breathing 100% oxygen. 
C) taking the patient's blood pressure and temperature. 
D) both b and c

Question 20

To have optimal effectiveness of the topical anesthetic ointment type,it must remain on the site of the injection for:

Accepted Answer

A) 3 to 5 seconds. 
B) 1 to 2 seconds. 
C) 1 to 2 minutes. 
D) 3 to 5 minutes. 
A) 3 to 5 seconds. 
B) 1 to 2 seconds. 
C) 1 to 2 minutes. 
D) 3 to 5 minutes.

Exam 37: Anesthesia and Pain Control

Local anesthetic agents are not effective when injected into an area where a tooth or soft tissue is infected because:

A 30-gauge needle would be a _____ needle.

Used or contaminated needles and cartridges are discarded in the:

The anesthetic syringe consists of all of the following parts except a:

The type of local anesthetic that would be selected for a patient with a medical history that indicates a recent myocardial infarction is:

What nerve is anesthetized for tooth #31?

Which of the following choices represents the lowest ratio,meaning greatest concentration,of vasoconstrictor in local anesthetic?

Anesthesia is defined as:

The lengths of the needles used in dentistry are:

The different levels of consciousness and unconsciousness are referred to as stages of anesthesia; these stages include all of the following except stage:

The gauge of the needle refers to the thickness of the needle; the larger the gauge,the _____ the needle.

Injecting the anesthetic solution directly into the tissue at the site of the dental procedure,generally used on the maxillary teeth,is called a(n):

The time from when the local anesthetic takes complete effect until the complete reversal of anesthesia is the called the _____ of the anesthetic agent.

Which of the following ratios of vasoconstrictor to local anesthetic would contain the highest level of vasoconstrictor?

Most surgical procedures are scheduled in the early morning,because:

Which of the following types of commonly prescribed sedatives for dental patients is indicated for children?

During the loading of an anesthetic syringe,the _____ is loaded first.

An anesthetic injection for a procedure for tooth #19 would require what size needle?

Nitrous oxide oxygen administration always begins and ends with:

To have optimal effectiveness of the topical anesthetic ointment type,it must remain on the site of the injection for:

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