MDS PREP

All of the following are true of compsites except
1) Placed and finished at the same appointment
2) More colour stable than unfilled resins
3) Both of the above
4) None of the above

Conservative Dentistry Answer: 2

When placing a self-threaded pin, pin drill unfortunately enters the vital pulp chamber. The site is well isolated by a rubber dam. The line of treatment
1) Coat the tip of the pin with calcium hydroxide
2) Cover and fill the pin channel with calcium hydroxide and proceed
3) Immediately make arrangements for endodontic treatment
4) Stop the operative procedures and recall patient for next appointment

Conservative Dentistry Answer: 2

A major factor determining the efficiency of bur is
1) Taper angle
2) Spiral angle
3) Head angle
4) Head diameter

Conservative Dentistry Answer: 2

A patient has his lower premolar restored with amalgam. Deep retentive undercuts where placed during the cavity preparation. Patient returns with definite pain after 15 days. The reason may be
1) Undetected pulp exposure
2) Delayed expansion of the mercury
3) Microleakage affecting the pulp
4) Galvanic currents

Conservative Dentistry Answer: 1

Poor condensation, of the amalgam results in
1) High residual mercury content at the margins
2) Contraction of the amalgam
3) Reduced strength of the set amalgam
4) All of the above

Conservative Dentistry Answer: 3

Amalgam which exhibits least creep and marginal breakdown is
1) High copper dispersion phase
2) High copper spherical
3) Conventional lathe cut
4) Conventional admixed

Conservative Dentistry Answer: 2

Retentive grooves in the proximal box for a class II amalgam should be
1. Sharp elongated at dentinoenamel junction
2. Sharp elongated placed in the dentin
3. Round elongated in the dentin
4. Round and short in the dentin

Conservative Dentistry Answer: 3

When all diagnostic procedure fail to detect proximal caries, last resort is
1) Mechanical separation
2) Preparation of the test cavity
3) Transillumination
4) Caries activity tests

MDS PREP

All of the following are true of compsites except
1) Placed and finished at the same appointment
2) More colour stable than unfilled resins
3) Both of the above
4) None of the above

A major factor determining the efficiency of bur is
1) Taper angle
2) Spiral angle
3) Head angle
4) Head diameter

Poor condensation, of the amalgam results in
1) High residual mercury content at the margins
2) Contraction of the amalgam
3) Reduced strength of the set amalgam
4) All of the above

Amalgam which exhibits least creep and marginal breakdown is
1) High copper dispersion phase
2) High copper spherical
3) Conventional lathe cut
4) Conventional admixed

Retentive grooves in the proximal box for a class II amalgam should be
1. Sharp elongated at dentinoenamel junction
2. Sharp elongated placed in the dentin
3. Round elongated in the dentin
4. Round and short in the dentin

When all diagnostic procedure fail to detect proximal caries, last resort is
1) Mechanical separation
2) Preparation of the test cavity
3) Transillumination
4) Caries activity tests

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MDS PREP

All of the following are true of compsites except1) Placed and finished at the same appointment2) More colour stable than unfilled resins3) Both of the above4) None of the above

A major factor determining the efficiency of bur is1) Taper angle2) Spiral angle3) Head angle4) Head diameter

Poor condensation, of the amalgam results in1) High residual mercury content at the margins2) Contraction of the amalgam3) Reduced strength of the set amalgam4) All of the above

Amalgam which exhibits least creep and marginal breakdown is1) High copper dispersion phase2) High copper spherical3) Conventional lathe cut4) Conventional admixed

Retentive grooves in the proximal box for a class II amalgam should be 1. Sharp elongated at dentinoenamel junction 2. Sharp elongated placed in the dentin 3. Round elongated in the dentin 4. Round and short in the dentin

When all diagnostic procedure fail to detect proximal caries, last resort is1) Mechanical separation2) Preparation of the test cavity3) Transillumination4) Caries activity tests

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All of the following are true of compsites except
1) Placed and finished at the same appointment
2) More colour stable than unfilled resins
3) Both of the above
4) None of the above

A major factor determining the efficiency of bur is
1) Taper angle
2) Spiral angle
3) Head angle
4) Head diameter

Poor condensation, of the amalgam results in
1) High residual mercury content at the margins
2) Contraction of the amalgam
3) Reduced strength of the set amalgam
4) All of the above

Amalgam which exhibits least creep and marginal breakdown is
1) High copper dispersion phase
2) High copper spherical
3) Conventional lathe cut
4) Conventional admixed

Retentive grooves in the proximal box for a class II amalgam should be
1. Sharp elongated at dentinoenamel junction
2. Sharp elongated placed in the dentin
3. Round elongated in the dentin
4. Round and short in the dentin

When all diagnostic procedure fail to detect proximal caries, last resort is
1) Mechanical separation
2) Preparation of the test cavity
3) Transillumination
4) Caries activity tests