What type of nerve fibers are predominantly found in the PDL?
A-beta fibers
Fibroblasts form what types of collagen
Types I and III
What
... [Show More] percentage of dentin is inorganic?
70%
When performing a cold test on a tooth, which nerve fibers are stimulated?
A-delta fibers
What is the earliest response of the pulp to caries?
Dentinal sclerosis
Types of pulp stones include all of the following...
-Free
-Attached
-Embedded
Which cell type is the primary immune cell in the pulp?
Dendritic
What are the major components of the odontoblast?
-Cell body
- Basally located nucleus
-Cell process
Odontoblastsa re derived from what cells?
Undifferentiated ectomesenchymal
Dentin is formed during which stage of tooth development?
Bell
What is the most commonly used radiograph in endodontics?
periapical
Radiographs are useful to evaluate success and failure at recalls because they do which of the following?
May show failure in patients without adverse signs and symptoms
Tooth #30 has a large periapical lesion on the radiograph. The diagnosis would be:
Diagnosis cannot be determined from radiograph findings alone
Which of the following is a distinguishing characteristic of a radiolucent lesion of endodontic origin?
The radiolucency stays at the apex regardless of cone angulation
Diagnostic radiography can help you assess all of the following...
-Presence or absence of a periapical radiolucency
-Root anatomy
-Pulp anatomy
Diagnostic radiography can NOT help you assess:
Pulp vitality
T/F:
A radiograph does not accurately portray actual tissue destruction
True
T/F
Tissue destruction is usually more extensive than it appears on a radiograph
True
Use of a paralleling technique may not be feasible when which of the following occurs?
There are maxillary tori
What does cone image shift do?
It assists in identifying superimposed canals
Digital radiography has NOT been proven to do which of the following?
Provide superior image quality
Digital radiography HAS been proven to:
-Reduce radiation to the patient
-Increase speed of obtaining an image
-Accurately be transmitted between computers
What is a disadvantage of a cone-image shift?
Normal anatomic structures may become superimposed over root apices
What are correct terms for a periapical diagnosis?
-Acute apical periodontitis
-Asymptomatic apical periodontitis
-Chronic apical abscess
All of the following are characteristics of referred pain:
-Referred pain never crosses the midline
-Can be referred from other teeth or extraoral structures
-Anesthetizing the true origin reduces or eliminates pain
Which diagnostic tests will help you determine if a tooth is vital?
-Heat
-Cold
-EPT (electric pulp test)
T/F
A tooth with a periapical diagnosis of condensing osteitis almost always has a negative response to cold.
False
Apical lesions of endodontic origin have the following characteristics:
-The lamina dura of the tooth socket is lost apically
-The radiolucency remains at the apex in radiographs exposed at different cone angles
-The tooth usually has a necrotic pulp
Palpation is useful in determining which of the following?
How far inflammation has spread [Show Less]