ACCURACY IS GUARANTEED
RDAEF Operative Dentistry- California Questions
with Detailed Verified Answers for Accuracy
How many classes of cavities are there and how many did GV
black classify?
✓✓ 6, but Black classified 5
What do GV black classifications tell you?
✓✓ The location in permanent teeth
What do GV Black classifications not tell you
✓✓ Does not tell how deep, or the condition of the pulp
Class I lesions occur where?
✓✓ in pits and fissures of the facial, lingual and occlusal
surfaces of molars and premolars
Also found in pits of maxillary lingual incisors
Where else are class I lesions found?
✓✓ pits of maxillary lingual incisors
Class II lesions occur where?
✓✓ The proximal surfaces of posterior teeth.... anything
proximal on a posterior tooth
, ACCURACY IS GUARANTEED
Where do class III lesions occur?
✓✓ Proximal surfaces of anterior teeth NOT involving the
incisal angle
Where do class IV lesions occur?
✓✓ Proximal surfaces of anterior teeth when the incisal angle
requires restoration
Class IV lesions are usually caused by?
✓✓ trauma
Where do class V lesions occur?
✓✓ in smooth, facial and lingual surfaces in the gingival third
of teeth on both anterior and posterior teeth
Factors that cause class V lesions?
✓✓ abrasion, acid erosion, abfraction from grinding (chipping
of enamel)
Where do class VI lesions occur?
✓✓ In the pit or wear defects on the incisal edges of anterior
teeth or the cusp tips of posterior teeth
Examples of class VI lesions
✓✓ Patient who grinds have cupped cusps or cupped anterior
incisal angles that could have lesions
, ACCURACY IS GUARANTEED
Which class is not part of black's classification?
✓✓ VI
What are the principles of cavity preparation?
✓✓ Outline, resistance, retention, Convenience, removal of
carious dentin, finish of enamel walls, cleansing
What is meant by resistance form?
✓✓ resistance of tooth structure to occlusal forces... you don't
want to undermine dentin by undercutting or gouging out, you
want sound dentin supporting enamel
Resistance refers to?
✓✓ horizontal direction
Retention form refers to?
✓✓ vertical direction... not enough depth could allow
restorative to fracture or wear away
What is meant by convenience form?
✓✓ Convenience for the operator... Must be able to have
enough room to do the work you need to... for 19 MO must open
up buccal, lingual and gingival floor to pack composite
Why must enamel walls be smooth?
✓✓ Jagged margins will allow bacteria to accumulate
RDAEF Operative Dentistry- California Questions
with Detailed Verified Answers for Accuracy
How many classes of cavities are there and how many did GV
black classify?
✓✓ 6, but Black classified 5
What do GV black classifications tell you?
✓✓ The location in permanent teeth
What do GV Black classifications not tell you
✓✓ Does not tell how deep, or the condition of the pulp
Class I lesions occur where?
✓✓ in pits and fissures of the facial, lingual and occlusal
surfaces of molars and premolars
Also found in pits of maxillary lingual incisors
Where else are class I lesions found?
✓✓ pits of maxillary lingual incisors
Class II lesions occur where?
✓✓ The proximal surfaces of posterior teeth.... anything
proximal on a posterior tooth
, ACCURACY IS GUARANTEED
Where do class III lesions occur?
✓✓ Proximal surfaces of anterior teeth NOT involving the
incisal angle
Where do class IV lesions occur?
✓✓ Proximal surfaces of anterior teeth when the incisal angle
requires restoration
Class IV lesions are usually caused by?
✓✓ trauma
Where do class V lesions occur?
✓✓ in smooth, facial and lingual surfaces in the gingival third
of teeth on both anterior and posterior teeth
Factors that cause class V lesions?
✓✓ abrasion, acid erosion, abfraction from grinding (chipping
of enamel)
Where do class VI lesions occur?
✓✓ In the pit or wear defects on the incisal edges of anterior
teeth or the cusp tips of posterior teeth
Examples of class VI lesions
✓✓ Patient who grinds have cupped cusps or cupped anterior
incisal angles that could have lesions
, ACCURACY IS GUARANTEED
Which class is not part of black's classification?
✓✓ VI
What are the principles of cavity preparation?
✓✓ Outline, resistance, retention, Convenience, removal of
carious dentin, finish of enamel walls, cleansing
What is meant by resistance form?
✓✓ resistance of tooth structure to occlusal forces... you don't
want to undermine dentin by undercutting or gouging out, you
want sound dentin supporting enamel
Resistance refers to?
✓✓ horizontal direction
Retention form refers to?
✓✓ vertical direction... not enough depth could allow
restorative to fracture or wear away
What is meant by convenience form?
✓✓ Convenience for the operator... Must be able to have
enough room to do the work you need to... for 19 MO must open
up buccal, lingual and gingival floor to pack composite
Why must enamel walls be smooth?
✓✓ Jagged margins will allow bacteria to accumulate
