Instrumentation, Amalgam and Resin Restorations → Dentist

Q-01.After amalgam is polished, the metal surface is flattened. This layer is called;

Deilby's layer

Beelby's layer

Teelby's layer

Whitby's layer

Correct! Wrong!

In acid etching, gel form is preferred over solution form because;

More concentrated action of acid

Can be easily washed off

Ease of placement over the area to be acid etched, without getting spread

All of the above

Correct! Wrong!

Q-03.All of the following are true about dental esthetic correction except?

Restoration of all anterior teeth in one appointment will enhance the dental esthetics

The individual tooth correction compare to correction of all tooth at the same time is more easy

Apparent size of the tooth can be increased by change (or alteration) in height of contour of tooth

Apparent length of the tooth can be increase by placing groove in the tooth

Correct! Wrong!

Q-04.Porcelain laminate veeners during adhesion get maximum retention through

Composite resin, silanization, luting agent, acid etching and porcelain

Acid etching, silanization, restoration

Composite resin, acid etching and restoration

Composite resin, etching, silanization

Correct! Wrong!

Q-05.Non active carious lesion is distinguished by all except;

Covered by a layer of plaque

Soft and leathery in consistency

Brown to black discoloration

Severe pain during caries removal

Correct! Wrong!

Q-06.All of the following are true about polymerization shrinkage of composite resin except?

Greater localized occlusal wear

Recurrent secondary caries

Technique

More time in replacement

Correct! Wrong!

Q-07.Decrease in creep occurs with?

Under trituration or over trituration of amalgam

Decrease in condensation pressure

Increase in condensation pressure

Cannot be predictable

Correct! Wrong!

Q-08.The percentage (%) of copper in high copper third generation amalgam is?

5-12%

12-32%

32-52%

More than 62%

Correct! Wrong!

Q-09.Enamel hatchet is differentiated from chisel by all except?

Curved in one plane only

Blade is larger

Blade is perpendicular to the long axis of handle

Blade is heavier

Correct! Wrong!

Q-10.All of the following are true about resistance form except?

Flat pulpal floor

Rounded internal line angles

Inclusion of weak tooth within restoration

Extension up to 1.00 mm in dentin

Correct! Wrong!

Q-11.All of the following about use of aerator hand piece are false except?

The sound frequency greater than 75 decibel (dB ) causes damage to the ear

The frequency of rotation of bur is 6000-8000 cpm

It will harm more in elderly than very young

Its use in younger teeth is contraindicated

Correct! Wrong!

Q-12.Sterilization of hand piece will cause?

Rust of hand piece

Turbine wear

Fibre loss

Loss of torque

Correct! Wrong!

Q-13.Change in all of the following affects the efficiency of bur except?

Neck diameter

Shape and size

Length and shape

Clearance angle

Correct! Wrong!

Q-14.In endodontic surgery, which of the following about chromic gut sutures is not true;

Its properties are inferior to pain gut sutures

It is coated with chromium trioxide

It is less biocompatible than plain gut sutures

Its absorption is faster than the plain gut sutures

Correct! Wrong!

Q-15.The range of wave length of visible light curing system is;

400-700 nm

410-500 nm

365-400 nm

700-900 nm

Correct! Wrong!

Q-16.In class-II cavity preparation the axiopulpal line angle is rounded to?

Prevent the fracture of enamel

Prevent the fracture of amalgam

Prevent the fracture of gingival sheath

Prevent the fracture of dentin

Correct! Wrong!

Q-17.The thickness of a class II matrix should be;

0.5 mm

0.002 mm

0.002 inches

0.0002 inches

Correct! Wrong!

Q-18.The reason for sealing caries during cavity preparation is;

To eliminate the need for eventual direct pulp capping

Produce an aseptic field when pulp exposure is inevitable

To allow the formation of secondary dentin before excavation

To produce a hard surface as a foundation for subsequent restoration

Correct! Wrong!

Q-19.Ramesh, a 40 year old patient experiences sensitivity in a mandibular 2nd premolar which has a well condensed class V dental amalgam filling done 5 months previously. There was no problem for the last 4 months. The most probable cause of increased sensitivity could be due to;

Marginal leakage

Tooth brush abrasion

Fractured restoration

Irreversible pulpal damage

Correct! Wrong!

Q-20.The restorative material which shows chemical bonding to the tooth surface is;

Composite resins

Glass ionomer cements

Unfilled resins

Zinc phosphate

Correct! Wrong!

Q-21.In the restoration of deep cavities with composite resins, the following precaution have to be taken to the protect the pulp;

Calcium hydroxide base

Cavity varnish

Zinc oxide eugenol palliative base

No need for a base as they are non-irritant to the pulp

Correct! Wrong!

Q-22.Class IV cavity.

Occurs on the proximal surface not involving the incisal edge of anterior teeth

Occurs on proximal surface involving the incisal edge of anterior teeth

Occurs on proximal surface involving the incisal edge of posterior teeth

Involves the buccal surface of anterior & posterior teeth

Correct! Wrong!

Q-23.Finishing and polishing of amalgam made the restoration cause;

Increase in tarnish and corrosion resistance

Increase the marginal strength

Decrease in tarnish and corrosion resistance

Increased compressive strength

Correct! Wrong!

Q-24.A patient complains of sensitivity in a mandibular premolar, A well condensed Class V and amalgam restoration was placed in that tooth 5 months ago, with it has become increasingly sensitive. The problem is probably related to;

Marginal leakage

Fractured restoration

Irreversible pulpal damage

Tooth brush abrasion

Correct! Wrong!

Q-25.For a class V cavity for amalgam;

Mesio-distal walls are parallel and occlusogingival walls converging

Mesio-distal walls diverging, occlusogingival walls converging

Mesio-distal walls diverging, occuso-gingival walls diverging

Mesio-distal walls and occluso-gingival walls parallel

Correct! Wrong!

Q-26.Most chances of exposure are for which pulp horn while cavity preparation;

Mesiobuccal and mesiolingual pulp horns of primary mandibular 2nd molar

Mesiobuccal and mesiolingual pulp horns of deciduous mandibular 1st molar

Distobuccal and distolingual pulp horns of deciduous mandibular 1st molar

Mesiobuccal an mesiolingual pulp horns of deciduous maxillary 1st molar

Correct! Wrong!

Instrumentation, Amalgam and Resin Restorations

Q-01.After amalgam is polished, the metal surface is flattened. This layer is called;

In acid etching, gel form is preferred over solution form because;

Q-03.All of the following are true about dental esthetic correction except?

Q-04.Porcelain laminate veeners during adhesion get maximum retention through

Q-05.Non active carious lesion is distinguished by all except;

Q-06.All of the following are true about polymerization shrinkage of composite resin except?

Q-07.Decrease in creep occurs with?

Q-08.The percentage (%) of copper in high copper third generation amalgam is?

Q-09.Enamel hatchet is differentiated from chisel by all except?

Q-10.All of the following are true about resistance form except?

Q-11.All of the following about use of aerator hand piece are false except?

Q-12.Sterilization of hand piece will cause?

Q-13.Change in all of the following affects the efficiency of bur except?

Q-14.In endodontic surgery, which of the following about chromic gut sutures is not true;

Q-15.The range of wave length of visible light curing system is;

Q-16.In class-II cavity preparation the axiopulpal line angle is rounded to?

Q-17.The thickness of a class II matrix should be;

Q-18.The reason for sealing caries during cavity preparation is;

Q-19.Ramesh, a 40 year old patient experiences sensitivity in a mandibular 2nd premolar which has a well condensed class V dental amalgam filling done 5 months previously. There was no problem for the last 4 months. The most probable cause of increased sensitivity could be due to;

Q-20.The restorative material which shows chemical bonding to the tooth surface is;

Q-21.In the restoration of deep cavities with composite resins, the following precaution have to be taken to the protect the pulp;

Q-22.Class IV cavity.

Q-23.Finishing and polishing of amalgam made the restoration cause;

Q-24.A patient complains of sensitivity in a mandibular premolar, A well condensed Class V and amalgam restoration was placed in that tooth 5 months ago, with it has become increasingly sensitive. The problem is probably related to;

Q-25.For a class V cavity for amalgam;

Q-26.Most chances of exposure are for which pulp horn while cavity preparation;

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Instrumentation, Amalgam and Resin Restorations

Q-01.After amalgam is polished, the metal surface is flattened. This layer is called;

In acid etching, gel form is preferred over solution form because;

Q-03.All of the following are true about dental esthetic correction except?

Q-04.Porcelain laminate veeners during adhesion get maximum retention through

Q-05.Non active carious lesion is distinguished by all except;

Q-06.All of the following are true about polymerization shrinkage of composite resin except?

Q-07.Decrease in creep occurs with?

Q-08.The percentage (%) of copper in high copper third generation amalgam is?

Q-09.Enamel hatchet is differentiated from chisel by all except?

Q-10.All of the following are true about resistance form except?

Q-11.All of the following about use of aerator hand piece are false except?

Q-12.Sterilization of hand piece will cause?

Q-13.Change in all of the following affects the efficiency of bur except?

Q-14.In endodontic surgery, which of the following about chromic gut sutures is not true;

Q-15.The range of wave length of visible light curing system is;

Q-16.In class-II cavity preparation the axiopulpal line angle is rounded to?

Q-17.The thickness of a class II matrix should be;

Q-18.The reason for sealing caries during cavity preparation is;

Q-19.Ramesh, a 40 year old patient experiences sensitivity in a mandibular 2nd premolar which has a well condensed class V dental amalgam filling done 5 months previously. There was no problem for the last 4 months. The most probable cause of increased sensitivity could be due to;

Q-20.The restorative material which shows chemical bonding to the tooth surface is;

Q-21.In the restoration of deep cavities with composite resins, the following precaution have to be taken to the protect the pulp;

Q-22.Class IV cavity.

Q-23.Finishing and polishing of amalgam made the restoration cause;

Q-24.A patient complains of sensitivity in a mandibular premolar, A well condensed Class V and amalgam restoration was placed in that tooth 5 months ago, with it has become increasingly sensitive. The problem is probably related to;

Q-25.For a class V cavity for amalgam;

Q-26.Most chances of exposure are for which pulp horn while cavity preparation;

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