CDCA OSCE MASTER SET EXAM
QUESTIONS & ANSWERS 2025/2026
**Disadvantage of a resin bonded denture (Maryland Bridge)? - ANSWERSDebonding
Advantage of a Maryland Bridge? - ANSWERSLess tooth reduction
Gutta percha is made out of? - ANSWERSZinc oxide
Drug that increase the concentration of lidocaine in the blood? - ANSWERSpropanalol
Best initial treatment for Maxillary oroantro fistula? - ANSWERSabx and irrigation
Minimum occlusal reduction for PFM? - ANSWERS1.5mm
X-rays show many well demarcated PA lucencies
Next step? - ANSWERSPulp test them
Purpose of SRP? - ANSWERSTo reduce inflammation and pockets
You extracted a tooth, 1 day later pt has a big blood clot.
Next step? - ANSWERSRemove clot, apply pressure with gauze , evaluate
Drug taken for arthritis? - ANSWERSNaproxene
,**Advantage of under contoured temps? - ANSWERSImproves health of gingival tissues
Porcelain fractures because 3 reasons: - ANSWERS-It was a long span resulting in flexing of
metal
-unsupported porcelain
-not enough occlusal reduction
Minimum thickness for porcelain? - ANSWERS2mm
**Pt has difficulty swallowing with C/C b/c? - ANSWERSthere is insufficient interocclusal space
You insert C/C. 1 side contacts in CR, the other doesn't b/c? - ANSWERSDimensional changes
during processing
**[Picture]
Arrow to the reciprocal clasp in above RPD, what's purpose - ANSWERSTo counterbalance force
of retentive arm/clasp
**Blunted roots of anterior teeth are due to? - ANSWERSExcessive orthodontic forces
When doing an implant, what's the best choice? - ANSWERSEndosseous
Best treatment plant to replace one tooth? - ANSWERSImplant
Advantage of implant? - ANSWERSAvoid the need to cut healthy teeth
RPD better than FPD for what reason? - ANSWERSMore hygienic
,X-rays cannot determine? - ANSWERSF/L width of the alveolar bone
V notch is cut into plaster cast to be able to? - ANSWERSRemove and replace model more
accurately
What isn't an indication of an MI? - ANSWERSPounding heart beat
If patient has history of angina, do what? - ANSWERSHave pt take nitroglycerin
Ideal occlusal reduction for porcelain on functional cusp? - ANSWERS2mm
**Best way to close an oro-antral fistula? - ANSWERSSurgery
**When it's hard to match shade of adjacent teeth? - ANSWERSSelect shade lower in color
saturation and less gray
The last 1/3 of the retentive arm of the clasp is located where? - ANSWERSApical to the height
of contour
Purpose of the die spacer? - ANSWERSTo allow room for the cement
If you are pulp testing and apply cold, tooth responds and goes in 3s.
Dx? - ANSWERSReversible pulpitis
If you are pulp testing and apply cold, tooth responds and goes immediately.
Dx? - ANSWERSHealthy tooth
, In an emergency, the accepted dose of injectable epi is? - ANSWERS0.2cc of 1:1000
Hydrochlorothiazide is a? - ANSWERSDiuretic
**Perio packs should be removed after surgery? - ANSWERSIn one week
Generally, prognosis for a diabetic patient having a lot of dental treatment is? - ANSWERSPoor
Calcium channel blockers may cause? - ANSWERSCause gingival hyperplasia
Ideal undercut for cast clasp retentive arm is? - ANSWERS0.01"
Ideal undercut for wrought wire retentive arm is? - ANSWERS0.03"
Vertical cleft of bone is? - ANSWERSDehiscence
Best method to clean FPD? - ANSWERSProxy brush
Indexing base of the cast - advantage? - ANSWERSAllows accurate reattachment of the cast in
proper articulator mounting
Patient with a joint replacement doesn't have to pre-med if it's been how long? - ANSWERS>1yr
(6mo now?)
C/C pt that smokes. Evaluate what? - ANSWERSDMD should look for stomatitis nicotina
QUESTIONS & ANSWERS 2025/2026
**Disadvantage of a resin bonded denture (Maryland Bridge)? - ANSWERSDebonding
Advantage of a Maryland Bridge? - ANSWERSLess tooth reduction
Gutta percha is made out of? - ANSWERSZinc oxide
Drug that increase the concentration of lidocaine in the blood? - ANSWERSpropanalol
Best initial treatment for Maxillary oroantro fistula? - ANSWERSabx and irrigation
Minimum occlusal reduction for PFM? - ANSWERS1.5mm
X-rays show many well demarcated PA lucencies
Next step? - ANSWERSPulp test them
Purpose of SRP? - ANSWERSTo reduce inflammation and pockets
You extracted a tooth, 1 day later pt has a big blood clot.
Next step? - ANSWERSRemove clot, apply pressure with gauze , evaluate
Drug taken for arthritis? - ANSWERSNaproxene
,**Advantage of under contoured temps? - ANSWERSImproves health of gingival tissues
Porcelain fractures because 3 reasons: - ANSWERS-It was a long span resulting in flexing of
metal
-unsupported porcelain
-not enough occlusal reduction
Minimum thickness for porcelain? - ANSWERS2mm
**Pt has difficulty swallowing with C/C b/c? - ANSWERSthere is insufficient interocclusal space
You insert C/C. 1 side contacts in CR, the other doesn't b/c? - ANSWERSDimensional changes
during processing
**[Picture]
Arrow to the reciprocal clasp in above RPD, what's purpose - ANSWERSTo counterbalance force
of retentive arm/clasp
**Blunted roots of anterior teeth are due to? - ANSWERSExcessive orthodontic forces
When doing an implant, what's the best choice? - ANSWERSEndosseous
Best treatment plant to replace one tooth? - ANSWERSImplant
Advantage of implant? - ANSWERSAvoid the need to cut healthy teeth
RPD better than FPD for what reason? - ANSWERSMore hygienic
,X-rays cannot determine? - ANSWERSF/L width of the alveolar bone
V notch is cut into plaster cast to be able to? - ANSWERSRemove and replace model more
accurately
What isn't an indication of an MI? - ANSWERSPounding heart beat
If patient has history of angina, do what? - ANSWERSHave pt take nitroglycerin
Ideal occlusal reduction for porcelain on functional cusp? - ANSWERS2mm
**Best way to close an oro-antral fistula? - ANSWERSSurgery
**When it's hard to match shade of adjacent teeth? - ANSWERSSelect shade lower in color
saturation and less gray
The last 1/3 of the retentive arm of the clasp is located where? - ANSWERSApical to the height
of contour
Purpose of the die spacer? - ANSWERSTo allow room for the cement
If you are pulp testing and apply cold, tooth responds and goes in 3s.
Dx? - ANSWERSReversible pulpitis
If you are pulp testing and apply cold, tooth responds and goes immediately.
Dx? - ANSWERSHealthy tooth
, In an emergency, the accepted dose of injectable epi is? - ANSWERS0.2cc of 1:1000
Hydrochlorothiazide is a? - ANSWERSDiuretic
**Perio packs should be removed after surgery? - ANSWERSIn one week
Generally, prognosis for a diabetic patient having a lot of dental treatment is? - ANSWERSPoor
Calcium channel blockers may cause? - ANSWERSCause gingival hyperplasia
Ideal undercut for cast clasp retentive arm is? - ANSWERS0.01"
Ideal undercut for wrought wire retentive arm is? - ANSWERS0.03"
Vertical cleft of bone is? - ANSWERSDehiscence
Best method to clean FPD? - ANSWERSProxy brush
Indexing base of the cast - advantage? - ANSWERSAllows accurate reattachment of the cast in
proper articulator mounting
Patient with a joint replacement doesn't have to pre-med if it's been how long? - ANSWERS>1yr
(6mo now?)
C/C pt that smokes. Evaluate what? - ANSWERSDMD should look for stomatitis nicotina
