Prosth INBDE UPDATED Exam Questions
and CORRECT Answers
Tooth to which the bridge attaches - CORRECT ANSWER - abutment
T/F: Compromised endo/perio teeth should not be used as abutments to support bridge -
CORRECT ANSWER - TRUE
Crown to root ratio: Bridge - CORRECT ANSWER - 1:2 ideal (amt of tooth IN bone is 2x
as much as the amt of tooth ABOVE BONE)
2:3 realistic
1:1 minimum
2:1 poor (not used for abutments)
PDL surface area of abutment teeth should be equal to or (blank) than the imaginary PDL SA of
missing teeth !!! This is called? - CORRECT ANSWER - greater, ANTE'S LAW
Splinting teeth distributes occlusal forces -> Recommended where perio surface of abutment
tooth is not sufficient to support bridge aka ? - CORRECT ANSWER - Failure of Ante's
Law
When replacing a canine, the central and lateral should be (blank) to prevent lateral drifting -
CORRECT ANSWER - splinted
CD is CI in upper when only mand anterior teeth are present bc severe damage to opposing
premaxilla occurs -> ? - CORRECT ANSWER - combination syndrome
Overdenture: 2 implants (blank) an 4 (blank) - CORRECT ANSWER - Mand, Max
,What controls the setting rate in alginate impressions? - CORRECT ANSWER - Trisodium
phosphate
2-3 min seated in patients mouth
Within (blank) min -> pour impression
30-60 min -> separate casts - CORRECT ANSWER - 15 min
Position in which CONDYLES articulate with the thinnest avascular portion of their respective
discs in the most AP position against the articular eminences
*INDEPENDENT OF TEETH - CORRECT ANSWER - CR
Complete interdigitation of teeth
*INDEPENDENT OF CONDYLAR POSITION - CORRECT ANSWER - MI (CO)
MI and CR coincide in only (blank)% of the population!
-Casts mounted in MI when MI can be maintained
-Casts mounted in CR when MI is impossible to maintain (like bc complete dentures) -
CORRECT ANSWER - 10%
Objective is to duplicate on the articulator the relationship of the max arch to the skull and mand
to the rotational center of the TMJs that exist for that pt -> ? - CORRECT ANSWER -
Facebow
Semiadjustable articulator:
15 degrees for (blank) angle
, 30 degrees for (blank)
Arcon: condyles are part of the lower member
Nonarcon: upper and lower members are rigidly attached - CORRECT ANSWER -
Bennett
HCI
Casts poured from alginate -> more accurate with (blank) records
Casts poured from elastomeric -> more accurate with elastomeric materials like (PVS or ZOE) -
CORRECT ANSWER - wax
Slope of articular eminence
HCI on articulator
Posterior determinant of occlusion - CORRECT ANSWER - Condylar guidance
Incisal edges against lingual slopes of upper incisors
Represented by pin and guide table on articulator
Anterior determinant of occlusion - CORRECT ANSWER - Incisal guidance
In lateral movements all post teeth are discluded as contact occurs btwn upper and lower canine
on the working side - CORRECT ANSWER - canine guidance
Refers to both incisal and canine guidance
-during protrusive, incisal, and condylar guidance provide clearance for all posterior teeth
-during lateral, canines on working side and condyle balancing side provide clearance for
posterior teeth on balancing side - CORRECT ANSWER - anterior guidance
Mechanical incisal guide table gives insufficient info to reproduce lingual contours of max
anterior natural teeth -> (Blank) guide table is made out of acrylic resin its better - CORRECT
ANSWER - Custom
and CORRECT Answers
Tooth to which the bridge attaches - CORRECT ANSWER - abutment
T/F: Compromised endo/perio teeth should not be used as abutments to support bridge -
CORRECT ANSWER - TRUE
Crown to root ratio: Bridge - CORRECT ANSWER - 1:2 ideal (amt of tooth IN bone is 2x
as much as the amt of tooth ABOVE BONE)
2:3 realistic
1:1 minimum
2:1 poor (not used for abutments)
PDL surface area of abutment teeth should be equal to or (blank) than the imaginary PDL SA of
missing teeth !!! This is called? - CORRECT ANSWER - greater, ANTE'S LAW
Splinting teeth distributes occlusal forces -> Recommended where perio surface of abutment
tooth is not sufficient to support bridge aka ? - CORRECT ANSWER - Failure of Ante's
Law
When replacing a canine, the central and lateral should be (blank) to prevent lateral drifting -
CORRECT ANSWER - splinted
CD is CI in upper when only mand anterior teeth are present bc severe damage to opposing
premaxilla occurs -> ? - CORRECT ANSWER - combination syndrome
Overdenture: 2 implants (blank) an 4 (blank) - CORRECT ANSWER - Mand, Max
,What controls the setting rate in alginate impressions? - CORRECT ANSWER - Trisodium
phosphate
2-3 min seated in patients mouth
Within (blank) min -> pour impression
30-60 min -> separate casts - CORRECT ANSWER - 15 min
Position in which CONDYLES articulate with the thinnest avascular portion of their respective
discs in the most AP position against the articular eminences
*INDEPENDENT OF TEETH - CORRECT ANSWER - CR
Complete interdigitation of teeth
*INDEPENDENT OF CONDYLAR POSITION - CORRECT ANSWER - MI (CO)
MI and CR coincide in only (blank)% of the population!
-Casts mounted in MI when MI can be maintained
-Casts mounted in CR when MI is impossible to maintain (like bc complete dentures) -
CORRECT ANSWER - 10%
Objective is to duplicate on the articulator the relationship of the max arch to the skull and mand
to the rotational center of the TMJs that exist for that pt -> ? - CORRECT ANSWER -
Facebow
Semiadjustable articulator:
15 degrees for (blank) angle
, 30 degrees for (blank)
Arcon: condyles are part of the lower member
Nonarcon: upper and lower members are rigidly attached - CORRECT ANSWER -
Bennett
HCI
Casts poured from alginate -> more accurate with (blank) records
Casts poured from elastomeric -> more accurate with elastomeric materials like (PVS or ZOE) -
CORRECT ANSWER - wax
Slope of articular eminence
HCI on articulator
Posterior determinant of occlusion - CORRECT ANSWER - Condylar guidance
Incisal edges against lingual slopes of upper incisors
Represented by pin and guide table on articulator
Anterior determinant of occlusion - CORRECT ANSWER - Incisal guidance
In lateral movements all post teeth are discluded as contact occurs btwn upper and lower canine
on the working side - CORRECT ANSWER - canine guidance
Refers to both incisal and canine guidance
-during protrusive, incisal, and condylar guidance provide clearance for all posterior teeth
-during lateral, canines on working side and condyle balancing side provide clearance for
posterior teeth on balancing side - CORRECT ANSWER - anterior guidance
Mechanical incisal guide table gives insufficient info to reproduce lingual contours of max
anterior natural teeth -> (Blank) guide table is made out of acrylic resin its better - CORRECT
ANSWER - Custom
