Quiz 7 - Dental restorations Flashcards
What are the most radiopaque restoration materials?
Amalgam
Gold
What dental restoration materials are slightly RO-RL?
Porcelain
Composite
Acrylic
What is amalgam composed of?
Mercury
Silver
Tin
Copper
How can amalgam differentiate from gold on an x-ray?
Irregular borders
Overhangs
How can gold differentiate from amalgam on an x-ray?
Smooth borders
Onlays
Inlays
-Prefabricated
-RO, but “see through”
-Smooth margins
-Poor contours
Stainless steel crowns
Resembles density of dentin
Porcelain
-RO but can be RL depending on composition
-Regular, well-defined borders
Composite
-Only present in endodontically treated teeth
-RO
Post and core
What is post?
Prepared tooth
What is core?
Pulp cavity
-Cavity liners to protect pulp
-RO
Base material
What are the two cavity liners that protect pulp?
-Zinc phosphate cement
-Zinc-oxide eugenol paste
-Enhance retention of amalgam or composite
-Cylindrical or screw-shaped
-RO
Metallic pins
-Rubber-like
-Fills canals of pulp
-Less RO than silver points
Gutta percha
-Fills canals of pulp
-Highly RO
Silver points
-Dentures, partial or full
-Diatorics (pins)
Prosthodontic materials
-Option to replace missing teeth
-Metallic material
Implants
How can we determine if buccal versus lingual on a 2D radiographic image?
SLOB rule
What is SLOB rule?
Same, Lingual
Opposite, Buccal
How can dental caries be found?
-Clinical exam
-Radiographs
What are the important factors for interpreting caries?
-Recognize the normal
-Proper mounting
-Good diagnostic quality
-Minimization/elimination of technique errors
What are the six classifications of caries?
-Interproximal
-Occlusal
-Buccal/lingual
-Root surface
-Recurrent
-Rampant
What are the four levels of interproximal caries?
Incipient
Moderate
Advanced
Severe
What are the three levels of occlusal caries?
Incipient
Moderate
Severe
-Class I
-Less than halfway through enamel
Incipient interproximal caries
-Class II
-More than halfway through enamel
Moderate interproximal caries
-Class III
-Less than halfway to pulp
Advanced interproximal caries
-Class IV
-More than halfway to pulp
Severe interproximal caries
-Cannot be seen on dental images
-Must be detected clinically with explorer
Incipient occlusal caries
-Extends into dentin
-Little change seen in enamel on radiographs
Moderate occlusal caries
Large radiolucency carie
Severe occlusal caries
-Caries difficult to see on radiographs
-More easily seen clinically
Buccal and lingual caries
-Just below CEJ
-Involves only roots
-Most commonly mandibular premolars and molars
Root caries
-Secondary caries
-Adjacent to a pre-existing restoration
Recurrent caries
What are recurrent caries caused by?
-Inadequate cavity prep
-Defective margins
-Incomplete removal of caries
-Advanced, severe caries on multiple teeth
-Children with poor diets or adults with inadequate salivary flow
Rampant caries
