Question 1

Which step in root canal therapy takes place first?

Accepted Answer

A) Estimated working length 
B) Access preparation 
C) Debridement and shaping the canal 
D) Obturation 
A) Estimated working length 
B) Access preparation 
C) Debridement and shaping the canal 
D) Obturation B

Question 2

Which statement is incorrect concerning the specialty of endodontics?

Accepted Answer

A) Endodontic treatment is often referred to as root canal therapy. 
B) A general dentist is qualified to perform endodontic treatment. 
C) The American Dental Association recognized endodontics as a specialty in dentistry in 1953. 
D) Endodontics manages the prevention of diseases of the dental pulp. 
A) Endodontic treatment is often referred to as root canal therapy. 
B) A general dentist is qualified to perform endodontic treatment. 
C) The American Dental Association recognized endodontics as a specialty in dentistry in 1953. 
D) Endodontics manages the prevention of diseases of the dental pulp. C

Question 3

Which statement typifies the vitalometer (electric pulp tester)?

Accepted Answer

A) It is the most reliable means of testing for pulp vitality. 
B) It is not affected by the size of the restorations on a tooth. 
C) It is battery operated, which can weaken over time and give a false reading. 
D) It is able to determine whether one canal is vital and other nonvital. 
A) It is the most reliable means of testing for pulp vitality. 
B) It is not affected by the size of the restorations on a tooth. 
C) It is battery operated, which can weaken over time and give a false reading. 
D) It is able to determine whether one canal is vital and other nonvital. C

Question 4

Which of the following statements is correct regarding pulp capping?

Accepted Answer

A) Some of the carious dentin is left in the tooth to promote self-healing of the dentin so that pulp exposure can be avoided. 
B) With direct pulp capping, the tooth is nonvital and material is placed to protect the pulp. 
C) Indirect pulp capping is a permanent procedure, but the patient needs to be informed because problems may develop later and periodic monitoring is necessary. 
D) The goals of indirect pulp capping are to promote pulpal healing by removing all the decay and to stimulate the production of reparative dentin through placement of calcium hydroxide. 
A) Some of the carious dentin is left in the tooth to promote self-healing of the dentin so that pulp exposure can be avoided. 
B) With direct pulp capping, the tooth is nonvital and material is placed to protect the pulp. 
C) Indirect pulp capping is a permanent procedure, but the patient needs to be informed because problems may develop later and periodic monitoring is necessary. 
D) The goals of indirect pulp capping are to promote pulpal healing by removing all the decay and to stimulate the production of reparative dentin through placement of calcium hydroxide.

Question 5

What is pulp fibrosis?

Accepted Answer

A) It develops as a result of necrosis of the pulp. 
B) It is seen in patients with a traumatic injury to the tooth. 
C) It has a draining tract where pus is intermittently discharged. 
D) It has symptoms of sudden onset of pain, swelling, and pus formation. 
A) It develops as a result of necrosis of the pulp. 
B) It is seen in patients with a traumatic injury to the tooth. 
C) It has a draining tract where pus is intermittently discharged. 
D) It has symptoms of sudden onset of pain, swelling, and pus formation.

Question 6

What class of symptoms is described by the patient?

Accepted Answer

A) Objective 
B) Acute 
C) Chronic 
D) Subjective 
A) Objective 
B) Acute 
C) Chronic 
D) Subjective

Question 7

What is the natural rubber material used to obturate the pulpal canal after treatment is completed?

Accepted Answer

A) Gutta-percha 
B) Hydrogen peroxide 
C) Glass ionomer 
D) Both b and c 
A) Gutta-percha 
B) Hydrogen peroxide 
C) Glass ionomer 
D) Both b and c

Question 8

Which style of hand file has its spiral edges arranged so that cutting occurs only on the pulling stroke,making the dentinal walls smooth and easier to fill?

Accepted Answer

A) Broach 
B) K-type 
C) Hedstrom 
D) Reamer 
A) Broach 
B) K-type 
C) Hedstrom 
D) Reamer

Question 9

What type of response to the percussion or palpation test would indicate that the inflammation is present in the periodontal ligament and that endodontic treatment is most likely needed?

Accepted Answer

A) Negative 
B) Positive 
C) Acute 
D) Obturation 
A) Negative 
B) Positive 
C) Acute 
D) Obturation

Question 10

Which of the following is used to absorb solutions and dry the canal?

Accepted Answer

A) Gutta-percha 
B) Rubber stops 
C) Paper points 
D) Broaches 
A) Gutta-percha 
B) Rubber stops 
C) Paper points 
D) Broaches

Question 11

What treatment is used to attempt to save the pulp,and encourage the formation of dentin at the site of the injury?

Accepted Answer

A) Pulpotomy 
B) Pulp capping 
C) Pulpectomy 
D) Apicoectomy 
A) Pulpotomy 
B) Pulp capping 
C) Pulpectomy 
D) Apicoectomy

Question 12

What is the purpose of irrigation solutions in root canal therapy?

Accepted Answer

A) Tissue dissolution 
B) Bleeding control 
C) Deodorizing the canal 
D) All of the above 
A) Tissue dissolution 
B) Bleeding control 
C) Deodorizing the canal 
D) All of the above

Question 13

What type of abscess would be present if the patient is experiencing pain,tenderness to tooth pressure,pus formation,and swelling?

Accepted Answer

A) Acute 
B) Chronic 
C) Reversible 
D) Irreversible 
A) Acute 
B) Chronic 
C) Reversible 
D) Irreversible

Question 14

What is the most common symptom of pulpal damage?

Accepted Answer

A) Sharp pain when occluding 
B) Ecchymosis 
C) Petechiae 
D) Leukoplakia 
A) Sharp pain when occluding 
B) Ecchymosis 
C) Petechiae 
D) Leukoplakia

Question 15

Which radiograph image helps the dentist determine the length of the canal?

Accepted Answer

A) Initial radiograph 
B) Working length 
C) Final instrumentation 
D) Final fill 
A) Initial radiograph 
B) Working length 
C) Final instrumentation 
D) Final fill

Question 16

Which procedure is most commonly used for vital primary teeth?

Accepted Answer

A) Indirect pulp capping 
B) Direct pulp capping 
C) Pulpectomy 
D) Pulpotomy 
A) Indirect pulp capping 
B) Direct pulp capping 
C) Pulpectomy 
D) Pulpotomy

Question 17

Which process is used to remove bacteria,necrotic tissue,and organic debris from the root canal?

Accepted Answer

A) Obturation 
B) Opening the canal 
C) Debridement 
D) Shaping 
A) Obturation 
B) Opening the canal 
C) Debridement 
D) Shaping

Question 18

Which procedure removes a root from a multi-rooted tooth?

Accepted Answer

A) Apicoectomy 
B) Apical curettage 
C) Root amputation 
D) Hemisection 
A) Apicoectomy 
B) Apical curettage 
C) Root amputation 
D) Hemisection

Question 19

When the tooth pulp is irritated and the patient experiences pain to thermal stimuli,a diagnosis of ______ can be made.

Accepted Answer

A) periradicular cyst 
B) reversible pulpitis 
C) irreversible pulpitis 
D) periodontal abscess 
A) periradicular cyst 
B) reversible pulpitis 
C) irreversible pulpitis 
D) periodontal abscess

Question 20

What instrument is used to remove coronal pulp tissue and decay from a tooth?

Accepted Answer

A) Barbed broach 
B) Spoon excavator 
C) Glick Number 1 
D) K-type file 
A) Barbed broach 
B) Spoon excavator 
C) Glick Number 1 
D) K-type file

Exam 54: Endodontics

Which step in root canal therapy takes place first?

Which statement is incorrect concerning the specialty of endodontics?

Which statement typifies the vitalometer (electric pulp tester)?

Which of the following statements is correct regarding pulp capping?

What is pulp fibrosis?

What class of symptoms is described by the patient?

What is the natural rubber material used to obturate the pulpal canal after treatment is completed?

Which style of hand file has its spiral edges arranged so that cutting occurs only on the pulling stroke,making the dentinal walls smooth and easier to fill?

What type of response to the percussion or palpation test would indicate that the inflammation is present in the periodontal ligament and that endodontic treatment is most likely needed?

Which of the following is used to absorb solutions and dry the canal?

What treatment is used to attempt to save the pulp,and encourage the formation of dentin at the site of the injury?

What is the purpose of irrigation solutions in root canal therapy?

What type of abscess would be present if the patient is experiencing pain,tenderness to tooth pressure,pus formation,and swelling?

What is the most common symptom of pulpal damage?

Which radiograph image helps the dentist determine the length of the canal?

Which procedure is most commonly used for vital primary teeth?

Which process is used to remove bacteria,necrotic tissue,and organic debris from the root canal?

Which procedure removes a root from a multi-rooted tooth?

When the tooth pulp is irritated and the patient experiences pain to thermal stimuli,a diagnosis of ______ can be made.

What instrument is used to remove coronal pulp tissue and decay from a tooth?

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

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

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Orthodontics