Chapter 23 Flashcards
Which of these restorative materials will appear the most radiopaque on a dental radiograph?
C) Gold
Which dental material might not be imaged on a dental radiograph or may be only slightly visible except one?
C) Silver points
Which statement regarding the radiographic appearance of composite restorations is the exception?
B) They may appear with irregular or diffuse margins.
Which dental materials will most likely have a see-through appearance radiographically?
A) A stainless steel crown
Which dental materials may be observed within the pulp chamber and/or root canals of the tooth except one?
D) An implant
How can restorative materials be identified on dental radiographs?
D) All of the above
Are dental restorative materials the most common anomalies recorded by dental radiographic images?
TRUE
Do dental materials represent normal physiologic structures?
FALSE
Can the radiographic appearance of restorative materials vary depending on the angulations of the x-ray beam?
TRUE
Do restorative materials appear radiopaque or radiolucent?
TRUE
Is it possible to determine whether the metal restoration on a dental radiograph is gold or silver alloy?
FALSE
Is evaluation of dental restorative materials more likely to be conducted in conjunction with a clinical examination?
TRUE
Are amalgam restorations the least common and most difficult to recognize on dental radiographs?
FALSE
Do composite restorations vary from radiolucent to slightly radiopaque?
TRUE
What is the term for placed purposefully for the treatment of pathology or a condition needing correcting?
Iatrogenic or iatrogenically.
Why is it difficult to definitively identify the type, size, number, and location of restorations on dental radiographic images?
Radiographs represent a two-dimensional image of three-dimensional objects.
What are radiographs able to reveal that a clinical examination alone cannot?
Radiographs can reveal the presence of recurrent decay and defective restoration margins.
How can a radiolucent composite be differentiated from decay on a radiographic image?
Look for the restoration to appear to have straight margins and a prepared look.
What materials are used as intermediate restorations, cavity liners, bases, and cements?
Composite resin, glass ionomer, calcium hydroxide, and zinc oxide-eugenol.
How can a post and core and retention pin be differentiated on a dental radiograph?
A post penetrates a pulp root canal while a retention pin penetrates dentin only.
What type of restoration has a less radiopaque metal ‘shell’?
Ceramic-porcelain crowns.
What type of restorative material can appear more distinctly radiopaque compared to composite resin?
Glass ionomer.
What type of temporary restoration has a ‘see-through’ appearance on the radiograph?
A stainless steel crown.
