MDS PREP

A thick matrix band has mainly the disadvantage of
1) May damage periodontal ligament
2) Adaptation in the interdental area is difficult
3) Proper proximal contacts are difficult to achieve
4) Difficult in contouring

Conservative Dentistry Answer: 3

The main purpose of trituration is
1) To coat the alloy particle with mercury
2) Dissolve all the alloy particles in mercury
3) To reduce the size of the alloy particles
4) None of the above

Conservative Dentistry Answer: 1

Pulp horn most likely to be exposed in class II amalgam preparation in upper and lower first molar respectively
1) Mesiolingual and mediobuccal
2) Mediolingual and distolingual
3) Distobuccal and distolingual
4) Distolingual and distobuccal

Conservative Dentistry Answer: 1

Gingivally the depth of a class V cavity is
1) 0.5-1 mm
2) 0.75-1 mm
3) 1-1.25 mm
4) 2-3 mm

Conservative Dentistry Answer: 2

Copal varnish is
1) ZnO resin
2) ZnO glycerin
3) Both A and B
4) None of the above

Conservative Dentistry Answer: 1

Back pressure porosity can be restified by
1) Vaccum investing the wax pattern
2) Decreasing the mould and casting temperature
3) Using proper technique of burn out temperature of casting pressure
4) All of the above

Conservative Dentistry Answer: 4

Which of the following is not a consideration for obtaining a resistance form during cavity preparation?
1) Stress patterns of teeth
2) Direction of enamel rods
3) Designing outline form with minimal extension
4) Dovetail preparation of restoration to occlusal loading

Conservative Dentistry Answer: 4

The following features are desirable for all restorative materials in the posterior teeth regarding cavosurface except
1. Margins placed in clean accessible area
2. Weakened enamel rods removed
3. Bevels on all margins to finish better
4. Definite cavosurface angle

Conservative Dentistry Answer: 3

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MDS PREP

A thick matrix band has mainly the disadvantage of1) May damage periodontal ligament2) Adaptation in the interdental area is difficult3) Proper proximal contacts are difficult to achieve4) Difficult in contouring

The main purpose of trituration is1) To coat the alloy particle with mercury2) Dissolve all the alloy particles in mercury3) To reduce the size of the alloy particles4) None of the above

Pulp horn most likely to be exposed in class II amalgam preparation in upper and lower first molar respectively1) Mesiolingual and mediobuccal2) Mediolingual and distolingual3) Distobuccal and distolingual4) Distolingual and distobuccal

Gingivally the depth of a class V cavity is1) 0.5-1 mm2) 0.75-1 mm3) 1-1.25 mm4) 2-3 mm

Copal varnish is1) ZnO resin2) ZnO glycerin3) Both A and B4) None of the above

Back pressure porosity can be restified by1) Vaccum investing the wax pattern2) Decreasing the mould and casting temperature3) Using proper technique of burn out temperature of casting pressure4) All of the above

Which of the following is not a consideration for obtaining a resistance form during cavity preparation?1) Stress patterns of teeth2) Direction of enamel rods3) Designing outline form with minimal extension4) Dovetail preparation of restoration to occlusal loading

The following features are desirable for all restorative materials in the posterior teeth regarding cavosurface except 1. Margins placed in clean accessible area 2. Weakened enamel rods removed 3. Bevels on all margins to finish better 4. Definite cavosurface angle

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A thick matrix band has mainly the disadvantage of
1) May damage periodontal ligament
2) Adaptation in the interdental area is difficult
3) Proper proximal contacts are difficult to achieve
4) Difficult in contouring

The main purpose of trituration is
1) To coat the alloy particle with mercury
2) Dissolve all the alloy particles in mercury
3) To reduce the size of the alloy particles
4) None of the above

Pulp horn most likely to be exposed in class II amalgam preparation in upper and lower first molar respectively
1) Mesiolingual and mediobuccal
2) Mediolingual and distolingual
3) Distobuccal and distolingual
4) Distolingual and distobuccal

Gingivally the depth of a class V cavity is
1) 0.5-1 mm
2) 0.75-1 mm
3) 1-1.25 mm
4) 2-3 mm

Copal varnish is
1) ZnO resin
2) ZnO glycerin
3) Both A and B
4) None of the above

Back pressure porosity can be restified by
1) Vaccum investing the wax pattern
2) Decreasing the mould and casting temperature
3) Using proper technique of burn out temperature of casting pressure
4) All of the above

Which of the following is not a consideration for obtaining a resistance form during cavity preparation?
1) Stress patterns of teeth
2) Direction of enamel rods
3) Designing outline form with minimal extension
4) Dovetail preparation of restoration to occlusal loading

The following features are desirable for all restorative materials in the posterior teeth regarding cavosurface except
1. Margins placed in clean accessible area
2. Weakened enamel rods removed
3. Bevels on all margins to finish better
4. Definite cavosurface angle