Dental Materials OSCE Solved Exam
Questions and Answers (Complete
Practice Papers)
What did you think was the most difficult part of placing an
amalgam restoration? - Correct Answers ✅Timing between
setting and carving
Disadvantages of amalgam - Correct Answers ✅-
Unconservative prep
- Mercury leakage
- Unaesthetic
- Metal - prone to corrosion (galvanic, galvanic pain, electric
shock)
Advantages of amalgam - Correct Answers ✅- Wear
resistance comparable to enamel
- Easy to handle
- Low cost
- Long/good clinical life (10-15 years)
- Not sensitive to moisture
Contraindications of amalgam - Correct Answers ✅-
Aesthetic areas
- Need much retention (do not need etch, prime, bond)
Indications of amalgam - Correct Answers ✅Class I, II, V
(posterior - e.g., buccal pit)
, Dental Materials OSCE Solved Exam
Questions and Answers (Complete
Practice Papers)
What is the titration time for amalgam - Correct Answers
✅8 seconds
Titration too quick = expansion
Titration too long = contraction
What is the setting time for amalgam, when would you
polish? - Correct Answers ✅24 hours
How do porosities arise in amalgam - Correct Answers
✅When it is not packed properly (i.e., light pressure
increases porosities), this can be avoided by ensuring
adequate packing/condensing
What are liners? - Correct Answers ✅Calcium hydroxide:
stimulates secondary dentine formation
Ledermix cement: kills pulp in 'hot pulp'
Vitrebond
IPL:
Injury
Post-operative sensitivity
Questions and Answers (Complete
Practice Papers)
What did you think was the most difficult part of placing an
amalgam restoration? - Correct Answers ✅Timing between
setting and carving
Disadvantages of amalgam - Correct Answers ✅-
Unconservative prep
- Mercury leakage
- Unaesthetic
- Metal - prone to corrosion (galvanic, galvanic pain, electric
shock)
Advantages of amalgam - Correct Answers ✅- Wear
resistance comparable to enamel
- Easy to handle
- Low cost
- Long/good clinical life (10-15 years)
- Not sensitive to moisture
Contraindications of amalgam - Correct Answers ✅-
Aesthetic areas
- Need much retention (do not need etch, prime, bond)
Indications of amalgam - Correct Answers ✅Class I, II, V
(posterior - e.g., buccal pit)
, Dental Materials OSCE Solved Exam
Questions and Answers (Complete
Practice Papers)
What is the titration time for amalgam - Correct Answers
✅8 seconds
Titration too quick = expansion
Titration too long = contraction
What is the setting time for amalgam, when would you
polish? - Correct Answers ✅24 hours
How do porosities arise in amalgam - Correct Answers
✅When it is not packed properly (i.e., light pressure
increases porosities), this can be avoided by ensuring
adequate packing/condensing
What are liners? - Correct Answers ✅Calcium hydroxide:
stimulates secondary dentine formation
Ledermix cement: kills pulp in 'hot pulp'
Vitrebond
IPL:
Injury
Post-operative sensitivity
