MDS PREP

Cavosurface bevels are contraindicated for the following restorations
1. Silicates and porcelain
2. Silicates and composites
3. Direct filling and cast gold
4. Amalgam and composites

Conservative Dentistry Answer: 1

Axial wall of a class II cavity preparation for amalgam
1. Parallels to dentinoenamel junction
2. Convex buccolingually
3. Follows the contour of the tooth
4. All of the above

Conservative Dentistry Answer: 4

The margins of the cast gold restorations are prevented placing
1) At wear facets
2) On the sloping surfaces of the cusps
3) On the lingual bevel
4) On the facial bevel

Conservative Dentistry Answer: 1

Which of the following principles of the cavity preparation is not considered much in modern methods of restorative dentistry?
1) Extension for prevention
2) Convenient form
3) Removal of the undermined enamel
4) Removal of the carious dentin

Conservative Dentistry Answer: 1

Which of the following describes requirements of a sprue?
1) To be as long as possible in order to speed the flow of gold into the mold cavity
2) To be smooth with no sharp corners, and to found into the thickest portion of the wax pattern
3) Both of the above
4) None of the above

Conservative Dentistry Answer: 2

Fineness of the gold used for direct filling
1) 24 carat
2) 18 carat
3) 20 carat
4) 22 carat

Conservative Dentistry Answer: 1

The 8 % racemic epinphrine is contraindicated in the gingival cord for patients with hypertension because of its
1) Vasoconstrictor effect
2) Allergic effect
3) Because it causes ischaemia of the gingival tissues
4) Causes severe pain

Conservative Dentistry Answer: 1

The term ABREFACTION refers to
1) Non-carious wear of the tooth structure due to chemico mechanical action
2) Microfractures occuring at the cervical areas of the tooth due to eccentric forces
3) Both A and B
4) None of the above

MDS PREP

Cavosurface bevels are contraindicated for the following restorations
1. Silicates and porcelain
2. Silicates and composites
3. Direct filling and cast gold
4. Amalgam and composites

Axial wall of a class II cavity preparation for amalgam
1. Parallels to dentinoenamel junction
2. Convex buccolingually
3. Follows the contour of the tooth
4. All of the above

The margins of the cast gold restorations are prevented placing
1) At wear facets
2) On the sloping surfaces of the cusps
3) On the lingual bevel
4) On the facial bevel

Which of the following principles of the cavity preparation is not considered much in modern methods of restorative dentistry?
1) Extension for prevention
2) Convenient form
3) Removal of the undermined enamel
4) Removal of the carious dentin

Which of the following describes requirements of a sprue?
1) To be as long as possible in order to speed the flow of gold into the mold cavity
2) To be smooth with no sharp corners, and to found into the thickest portion of the wax pattern
3) Both of the above
4) None of the above

Fineness of the gold used for direct filling
1) 24 carat
2) 18 carat
3) 20 carat
4) 22 carat

The 8 % racemic epinphrine is contraindicated in the gingival cord for patients with hypertension because of its
1) Vasoconstrictor effect
2) Allergic effect
3) Because it causes ischaemia of the gingival tissues
4) Causes severe pain

The term ABREFACTION refers to
1) Non-carious wear of the tooth structure due to chemico mechanical action
2) Microfractures occuring at the cervical areas of the tooth due to eccentric forces
3) Both A and B
4) None of the above

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MDS PREP

Cavosurface bevels are contraindicated for the following restorations 1. Silicates and porcelain 2. Silicates and composites 3. Direct filling and cast gold 4. Amalgam and composites

Axial wall of a class II cavity preparation for amalgam 1. Parallels to dentinoenamel junction 2. Convex buccolingually 3. Follows the contour of the tooth 4. All of the above

The margins of the cast gold restorations are prevented placing1) At wear facets2) On the sloping surfaces of the cusps3) On the lingual bevel4) On the facial bevel

Which of the following principles of the cavity preparation is not considered much in modern methods of restorative dentistry?1) Extension for prevention2) Convenient form3) Removal of the undermined enamel4) Removal of the carious dentin

Which of the following describes requirements of a sprue?1) To be as long as possible in order to speed the flow of gold into the mold cavity2) To be smooth with no sharp corners, and to found into the thickest portion of the wax pattern3) Both of the above4) None of the above

Fineness of the gold used for direct filling1) 24 carat2) 18 carat3) 20 carat4) 22 carat

The 8 % racemic epinphrine is contraindicated in the gingival cord for patients with hypertension because of its1) Vasoconstrictor effect2) Allergic effect3) Because it causes ischaemia of the gingival tissues4) Causes severe pain

The term ABREFACTION refers to1) Non-carious wear of the tooth structure due to chemico mechanical action2) Microfractures occuring at the cervical areas of the tooth due to eccentric forces3) Both A and B4) None of the above

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Cavosurface bevels are contraindicated for the following restorations
1. Silicates and porcelain
2. Silicates and composites
3. Direct filling and cast gold
4. Amalgam and composites

Axial wall of a class II cavity preparation for amalgam
1. Parallels to dentinoenamel junction
2. Convex buccolingually
3. Follows the contour of the tooth
4. All of the above

The margins of the cast gold restorations are prevented placing
1) At wear facets
2) On the sloping surfaces of the cusps
3) On the lingual bevel
4) On the facial bevel

Which of the following principles of the cavity preparation is not considered much in modern methods of restorative dentistry?
1) Extension for prevention
2) Convenient form
3) Removal of the undermined enamel
4) Removal of the carious dentin

Which of the following describes requirements of a sprue?
1) To be as long as possible in order to speed the flow of gold into the mold cavity
2) To be smooth with no sharp corners, and to found into the thickest portion of the wax pattern
3) Both of the above
4) None of the above

Fineness of the gold used for direct filling
1) 24 carat
2) 18 carat
3) 20 carat
4) 22 carat

The 8 % racemic epinphrine is contraindicated in the gingival cord for patients with hypertension because of its
1) Vasoconstrictor effect
2) Allergic effect
3) Because it causes ischaemia of the gingival tissues
4) Causes severe pain

The term ABREFACTION refers to
1) Non-carious wear of the tooth structure due to chemico mechanical action
2) Microfractures occuring at the cervical areas of the tooth due to eccentric forces
3) Both A and B
4) None of the above