The principal reasons for placing a gingival interproximal wedge in conjunction with a matrix for amalgam condensation are to: 1. separate the teeth slightly 2. keep the band tight at the gingival margin 3. contribute to the interproximal contact of the restoration 4. retract the gingival tissue a. 1,2,3 b. 1,2,4 c. 2,3,4 d. 1,3,4 e. all of the above

The principal reasons for placing a gingival interproximal wedge in conjunction with a matrix for  amalgam condensation are to:  
1. separate the teeth slightly  
2. keep the band tight at the gingival margin  
3. contribute to the interproximal contact of the restoration  
4. retract the gingival tissue  
a. 1,2,3  
b. 1,2,4  
c. 2,3,4  
d. 1,3,4  
e. all of the above
by

1 Answer

Answer :

e. all of the above
by

Related questions

Marginal leakage at the proximal gingival cavosurface of a recently restored class II can be caused by: I. Insufficient condensation II. First proximal increment was too large III. Neglecting to wedge the matrix IV. Hand manipulation instead of mechanical V. Debris contamination A. I, II, III B. II, III, IV C. I, II, V D. None of the above E. All of the above

Description : Marginal leakage at the proximal gingival cavosurface of a recently restored class II can be caused by: I. Insufficient condensation II. First proximal increment was too large III. Neglecting to wedge the matrix IV. Hand ... III, IV C. I, II, V D. None of the above E. All of the above

Last Answer : C. I, II, V

Function of matrix band: A. Substitute for the missing wall so adequate condensation forces can be applied B. Permit re-establishment of proper contact lines C. Restrict extrusion of amalgam and prevent formation of an “overhang” D. Provide adequate physiological contour for the proximal surface E. Provide an acceptable surface texture to the proximal surface F. All of the above

Description : Function of matrix band: A. Substitute for the missing wall so adequate condensation forces can be applied B. Permit re-establishment of proper contact lines C. Restrict extrusion of amalgam and prevent ... E. Provide an acceptable surface texture to the proximal surface F. All of the above

Last Answer : F. All of the above

Amalgam restoration, when do you have to replace it? a. Ditching of the edges. b. The probe penetrates the area between the margin and tooth tissue. c. Fissure of the surface of the amalgam. d. When there is chronic inflammation of the pulp.

Description : Amalgam restoration, when do you have to replace it? a. Ditching of the edges. b. The probe penetrates the area between the margin and tooth tissue. c. Fissure of the surface of the amalgam. d. When there is chronic inflammation of the pulp.

Last Answer : c. Fissure of the surface of the amalgam.

In preparing a very small proximal amalgam cavity on a molar tooth what would consider, A. Extend the cavity to the gingival margin B. Extend the cavity beyond the contacts areas C. Achieve at least 2mm in dentine D. Extend cavity just beyond dento enamel junction

Description : In preparing a very small proximal amalgam cavity on a molar tooth what would consider, A. Extend the cavity to the gingival margin B. Extend the cavity beyond the contacts areas C. Achieve at least 2mm in dentine D. Extend cavity just beyond dento enamel junction

Last Answer : D. Extend cavity just beyond dento enamel junction

The less mercury remaining in condensed amalgam: A. The stronger the restoration which contains fewer matrix alloys and fewer voids B. The weaker the restoration C. The more matrix alloys D. The more voids E. None of the above

Description : The less mercury remaining in condensed amalgam: A. The stronger the restoration which contains fewer matrix alloys and fewer voids B. The weaker the restoration C. The more matrix alloys D. The more voids E. None of the above

Last Answer : A. The stronger the restoration which contains fewer matrix alloys and fewer voids

The ”biologic width” is the distance between the A. Base of the gingival sulcus and the crest of alveolar bone B. Free gingival margin and the base of the gingival sulcus C. Free gingival margin and the alveolar bone D. Free gingival margin and the mucogingival junction E. Free gingival margin and the base of connective tissue attachment

Description : The biologic width is the distance between the A. Base of the gingival sulcus and the crest of alveolar bone B. Free gingival margin and the base of the gingival sulcus C. ... gingival margin and the mucogingival junction E. Free gingival margin and the base of connective tissue attachment

Last Answer : A. Base of the gingival sulcus and the crest of alveolar bone

Dental caries of the proximal surfaces usually starts at, A. Somewhere between the ridge and the contact area B. Just gingival to contact areas C. Just about the gingival margin

Description : Dental caries of the proximal surfaces usually starts at, A. Somewhere between the ridge and the contact area B. Just gingival to contact areas C. Just about the gingival margin

Last Answer : B. Just gingival to contact areas

The cervical finish line of a full veneer crown preparation should be placed: A. Just supragingival whenever is possible B. According to the depth of gingival crevice C. Subgingival to reduce ability of recurrent caries D. At the junction of tooth and amalgam core

Description : The cervical finish line of a full veneer crown preparation should be placed: A. Just supragingival whenever is possible B. According to the depth of gingival crevice C. Subgingival to reduce ability of recurrent caries D. At the junction of tooth and amalgam core

Last Answer : A. Just supragingival whenever is possible

When is a gingival groove LEAST required: A. When restoring with GIC for abrasion B. When restoring with GIC for root caries C. When restoring with GIC base and composite lamination D. When restoring with amalgam

Description : When is a gingival groove LEAST required: A. When restoring with GIC for abrasion B. When restoring with GIC for root caries C. When restoring with GIC base and composite lamination D. When restoring with amalgam

Last Answer : C. When restoring with GIC base and composite lamination

Occasional sensitivity in a shallow class I amalgam restoration after two days would be managed by: A. Replace old filing immediately B. Oxide Zinc and eugenol C. Using thicker mix of cements D. Tell patient the discomfort will disappear after 4 t o6 weeks E. Ledermix

Description : Occasional sensitivity in a shallow class I amalgam restoration after two days would be managed by: A. Replace old filing immediately B. Oxide Zinc and eugenol C. Using thicker mix of cements D. Tell patient the discomfort will disappear after 4 t o6 weeks E. Ledermix

Last Answer : D. Tell patient the discomfort will disappear after 4 t o6 weeks

A crown casting with a chamfer margin fits the die; but in the mouth the casting is open approximately 0.3mm. A satisfactory fit and accurate physiological close of the gingival area of the crown can BEST be achieved by: A. Hand burnishing B. Mechanical burnishing C. Using finishing burs and points to remove the enamel margins on the tooth D. Making a new impression and remaking the crown E. Relieving the inside of the occlusal surface of the casting to allow for further

Description : A crown casting with a chamfer margin fits the die; but in the mouth the casting is open approximately 0.3mm. A satisfactory fit and accurate physiological close of the gingival area of the crown ... the crown E. Relieving the inside of the occlusal surface of the casting to allow for further

Last Answer : D. Making a new impression and remaking the crown

The number of damaged gingival tissues after placing rubber dam is greater if: A. The distance between holes is too big B. The distance between holes is too small C. The punctured holes are too big in size D. Not using lubricant when placing rubber dams

Description : The number of damaged gingival tissues after placing rubber dam is greater if: A. The distance between holes is too big B. The distance between holes is too small C. The punctured holes are too big in size D. Not using lubricant when placing rubber dams

Last Answer : B. The distance between holes is too small

The principle cause of failure of amalgam restoration is: A. Improperly prepared amalgam B. Improper cavity preparation C. Perio involvement D. Particles of amalgam

Description : The principle cause of failure of amalgam restoration is: A. Improperly prepared amalgam B. Improper cavity preparation C. Perio involvement D. Particles of amalgam

Last Answer : B. Improper cavity preparation

The most common cause of fracture at the isthmus of class II dental amalgam restoration is: A. Delayed expansion B. Inadequate depth at the isthmus area C. Inadequate width at the isthmus area

Description : The most common cause of fracture at the isthmus of class II dental amalgam restoration is: A. Delayed expansion B. Inadequate depth at the isthmus area C. Inadequate width at the isthmus area

Last Answer : B. Inadequate depth at the isthmus area

Pin Restoration with which material has the best retention: A. Amalgam B. Gold inlay C. Composite D. Glass Ionomer

Description : Pin Restoration with which material has the best retention:  A. Amalgam  B. Gold inlay  C. Composite  D. Glass Ionomer 

Last Answer : C. Composite 

Which of the following restoration material’s strength is not effected by pins: A. Amalgam B. Composite resin

Description : Which of the following restoration material’s strength is not effected by pins: A. Amalgam B. Composite resin

Last Answer : B. Composite resin

The retention pin in an amalgam restoration should be placed, A. Parallel to the outer wall B. Parallel to the long axis of tooth

Description : The retention pin in an amalgam restoration should be placed, A. Parallel to the outer wall B. Parallel to the long axis of tooth

Last Answer : A. Parallel to the outer wall

For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outline of the cusp C. reduce 2mm for retention form

Description : For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outline of the cusp C. reduce 2mm for retention form

Last Answer : A. reduce cusp by 2mm on a flat base for more resistance

It is desirable for major connectors of upper partial dentures to:** A. Be at least 5 mm away from the gingival margin B. Cover the anterior palate

Description : It is desirable for major connectors of upper partial dentures to:** A. Be at least 5 mm away from the gingival margin B. Cover the anterior palate

Last Answer : A. Be at least 5 mm away from the gingival margin

Why do you construct a lower removable partial denture with lingual bar: A. It is used when the space between raised floor, mouth and gingival margin is minimal B. Plaque accumulation is less than with lingual plate C. Should be made thicker when short

Description : Why do you construct a lower removable partial denture with lingual bar: A. It is used when the space between raised floor, mouth and gingival margin is minimal B. Plaque accumulation is less than with lingual plate C. Should be made thicker when short

Last Answer : B. Plaque accumulation is less than with lingual plate

The gingiva of a child is diagnosed on the basis of all of these except of: A. Contour of gingival papilla B. Sulcus depth C. Contour of Nasmyth membrane (nasmyth description of the membrane is unclear that's why the term enamel cuticle is preferred D. Tight filling of gingival collar

Description : The gingiva of a child is diagnosed on the basis of all of these except of: A. Contour of gingival papilla B. Sulcus depth C. Contour of Nasmyth membrane (nasmyth description of the membrane is unclear that's why the term enamel cuticle is preferred D. Tight filling of gingival collar

Last Answer : C. Contour of Nasmyth membrane (nasmyth description of the membrane is unclear that's why the term enamel cuticle is preferred

When incrementally placing a large composite resin restoration, what effect does an air-inhibited layer on the surface of the first increment have on the bond between the first and the second increments? A. It has no effect on the bond B. It is desirable and improves the bond C. It is undesirable and should be removed

Description : When incrementally placing a large composite resin restoration, what effect does an air-inhibited layer on the surface of the first increment have on the bond between the first and the second increments? A. ... B. It is desirable and improves the bond C. It is undesirable and should be removed

Last Answer : B. It is desirable and improves the bond

On examination of a composite restoration you find a dark attain: A. Replace the composite B. Repair with unfilled resin C. Apply topical fluoride at the margin

Description : On examination of a composite restoration you find a dark attain: A. Replace the composite B. Repair with unfilled resin C. Apply topical fluoride at the margin

Last Answer : A. Replace the composite

A vital tooth has a crown cemented to a pin-retained amalgam core; where does a failure occur: A. Between crown and cement B. Between core and cement C. In the crown and the root D. In the core and the margin preparation

Description : A vital tooth has a crown cemented to a pin-retained amalgam core; where does a failure occur: A. Between crown and cement B. Between core and cement C. In the crown and the root D. In the core and the margin preparation

Last Answer : B. Between core and cement

In regard to marginal leakage in amalgam: A. The wider the gap the better the chance of secondary caries B. Seal the margin with fissure sealant would prevent further breakdown C. Secondary caries may develop

Description : In regard to marginal leakage in amalgam: A. The wider the gap the better the chance of secondary caries B. Seal the margin with fissure sealant would prevent further breakdown C. Secondary caries may develop

Last Answer : A. The wider the gap the better the chance of secondary caries

Which of the following statement about the defective margins of amalgam restorations is true?+M07 A. The larger the breakdown, the greater the chance of decay. IF THERE IS MARGINAL BREAKDOWN THIS DOSNT NECESSITATE THE PRESENCE OF CARIES ALONG MARGIN So the ans is Chances are increased

Description : Which of the following statement about the defective margins of amalgam restorations is true?+M07 A. The larger the breakdown, the greater the chance of decay. IF THERE IS MARGINAL BREAKDOWN THIS DOSNT NECESSITATE THE PRESENCE OF CARIES ALONG MARGIN So the ans is Chances are increased

Last Answer : A. The larger the breakdown, the greater the chance of decay.

Retention for occlusal amalgam cavities in premolars is BEST provided by A. Slightly undercutting of walls with inversed cone bur B. Mesial and distal undercuts C. Buccal and lingual undercuts

Description : Retention for occlusal amalgam cavities in premolars is BEST provided by A. Slightly undercutting of walls with inversed cone bur B. Mesial and distal undercuts C. Buccal and lingual undercuts

Last Answer : C. Buccal and lingual undercuts

Burnishing the amalgam after carving, what is the benefit? a.Completing the condensation at the marginal edges. b.eleminating excessive mercury

Description : Burnishing the amalgam after carving, what is the benefit? a.Completing the condensation at the marginal edges. b.eleminating excessive mercury

Last Answer : .Completing the condensation at the marginal edges.

The technique of placing guttapercha cones against the root canal walls providing space for additional guttapercha is termed: A. Lateral Condensation B. One major Gutta Percha point C. Laterally above condensed

Description : The technique of placing guttapercha cones against the root canal walls providing space for additional guttapercha is termed: A. Lateral Condensation B. One major Gutta Percha point C. Laterally above condensed

Last Answer : A. Lateral Condensation

A very quick and wide separation of teeth causes: A. Gingival inflammation B. Vasodilation C. Wider spaces D. Necrosis of bone

Description : A very quick and wide separation of teeth causes: A. Gingival inflammation B. Vasodilation C. Wider spaces D. Necrosis of bone

Last Answer : A. Gingival inflammation

Where is the retentive position on teeth according to the survey line: A. Below the height of contour B. Next to gingival margins

Description : Where is the retentive position on teeth according to the survey line: A. Below the height of contour B. Next to gingival margins

Last Answer : A. Below the height of contour

The gingival portion of natural teeth differs in colour from the incisal portion because the : A. Lighting angle is different B. Gingival and incisal portions have different fluorescent qualities C. Gingival area has a dentine background D. Incident light is different

Description : The gingival portion of natural teeth differs in colour from the incisal portion because the : A. Lighting angle is different B. Gingival and incisal portions have different fluorescent qualities C. Gingival area has a dentine background D. Incident light is different

Last Answer : C. Gingival area has a dentine background

In the construction of a full veneer gold crown, future recession of gingival tissue can be prevented or at least minimised by, A. Extension of the crown 1 mm under the gingival crevice B. Reproduction of normal tooth incline in the gingival one third of the crown C. Slight over contouring of the tooth in the gingival one fifth of the crown D. Slight under contouring of the tooth in the gingival one fifth of the crown

Description : In the construction of a full veneer gold crown, future recession of gingival tissue can be prevented or at least minimised by, A. Extension of the crown 1 mm under the gingival crevice B. ... of the crown D. Slight under contouring of the tooth in the gingival one fifth of the crown

Last Answer : B. Reproduction of normal tooth incline in the gingival one third of the crown

What is INCORRECT in HIV associated periodontitis:** A. Picture of ANUG superimposed with RPP B. Spontaneous bleeding interproximal C. Depression of T4/T8 lymphocytes D. Deep Perio-pockets usually seen in advanced periodontitis

Description : What is INCORRECT in HIV associated periodontitis:** A. Picture of ANUG superimposed with RPP B. Spontaneous bleeding interproximal C. Depression of T4/T8 lymphocytes D. Deep Perio-pockets usually seen in advanced periodontitis

Last Answer : C. Depression of T4/T8 lymphocytes

The advantage of using dental floss over rubber point interdentally: A. Remove plaque and debris in interproximal surfaces B. Polish C. Massage of the interdental papillae D. Aid and recognise subgingivally

Description : The advantage of using dental floss over rubber point interdentally: A. Remove plaque and debris in interproximal surfaces B. Polish C. Massage of the interdental papillae D. Aid and recognise subgingivally

Last Answer : A. Remove plaque and debris in interproximal surfaces

Two central incisors on a radiograph are showing with what looks like eye drop radiolucency. You decided to start endodontic treatment on these teeth but when you tried to open access to the root canal you find clearly closed orifices with what look like secondary dentine. What is your initial management? A. Leave as it and start a permanent restoration. B. Start systemic antibiotic C. Try to ream and file canals

Description : Two central incisors on a radiograph are showing with what looks like eye drop radiolucency. You decided to start endodontic treatment on these teeth but when you tried to open access to the root ... and start a permanent restoration. B. Start systemic antibiotic C. Try to ream and file canals

Last Answer : C. Try to ream and file canals

Recession of gingiva of several anterior teeth caused by exposure and softened cementum; what would you do? A. Scrap the soften cementum and apply fluoride B. Scrap the soften cementum and use GIC C. Class V amalgam

Description : Recession of gingiva of several anterior teeth caused by exposure and softened cementum; what would you do? A. Scrap the soften cementum and apply fluoride B. Scrap the soften cementum and use GIC C. Class V amalgam

Last Answer : B. Scrap the soften cementum and use GIC

The most common cause of porosity in porcelain jacket crowns is, A. Moisture contamination B. Excessive firing temperature C. Failure to anneal the platinum matrix D. Excessive condensation of the porcelain E. Inadequate condensation of the porcelain

Description : The most common cause of porosity in porcelain jacket crowns is, A. Moisture contamination B. Excessive firing temperature C. Failure to anneal the platinum matrix D. Excessive condensation of the porcelain E. Inadequate condensation of the porcelain

Last Answer : E. Inadequate condensation of the porcelain

the difficulty of placing matrices on deciduous dentition is a result of, A. The small mouth of kids which result in problem keeping the matrices in their mouths B. The occlusal convergence of the deciduous teeth

Description : the difficulty of placing matrices on deciduous dentition is a result of, A. The small mouth of kids which result in problem keeping the matrices in their mouths B. The occlusal convergence of the deciduous teeth

Last Answer : B. The occlusal convergence of the deciduous teeth

Upper first premolar with MO cavity; what is important about the application of the matrix band (the question has also shown too as ….What is complicated by): A. The mesial concavity of the root surface B. Small lingual pulp C. High buccal pulp horn D. High lingual pulp horn E. Concavity of distal root surface

Description : Upper first premolar with MO cavity; what is important about the application of the matrix band (the question has also shown too as .What is complicated by): A. The mesial concavity of the root ... pulp C. High buccal pulp horn D. High lingual pulp horn E. Concavity of distal root surface

Last Answer : A. The mesial concavity of the root surface

Which is NOT usually related to gingival inflammation in children? A. Endocrine disturbance B. Viral infection C. Mouth breathing D. Spirochetal infection E. Streptococcal infection

Description : Which is NOT usually related to gingival inflammation in children? A. Endocrine disturbance B. Viral infection C. Mouth breathing D. Spirochetal infection E. Streptococcal infection

Last Answer : D. Spirochetal infection

Child comes to your clinic with a fractured incisor 3 mm supra-gingival, how would you treat the case, A. Formocretasol pulpotomy B. Calcium hydroxide pulpotomy C. Pulpectomy D. Direct capping E. Indirect capping

Description : Child comes to your clinic with a fractured incisor 3 mm supra-gingival, how would you treat the case, A. Formocretasol pulpotomy B. Calcium hydroxide pulpotomy C. Pulpectomy D. Direct capping E. Indirect capping

Last Answer : B. Calcium hydroxide pulpotomy

If used, in which direction should pinholes be placed? a. parallel to the long axis of the tooth b.parallel to the nearest external surface c. at a 15 degree angle to the long axis of the tooth d. perpendicular to the gingival floor e. directly below and parallel to restored cusp tip

Description : If used, in which direction should pinholes be placed? a. parallel to the long axis of the tooth b.parallel to the nearest external surface c. at a 15 degree angle to the long axis of the tooth d. perpendicular to the gingival floor e. directly below and parallel to restored cusp tip

Last Answer : b.parallel to the nearest external surface

Clinical indications of pathogenic chronic periodontitis are: A. Mobility B. Dull pain on closing C. Presence of true pocket D. Apical migration of gingival epithelium E. Presence of subgingival calculus F. C, D & E

Description : Clinical indications of pathogenic chronic periodontitis are: A. Mobility B. Dull pain on closing C. Presence of true pocket D. Apical migration of gingival epithelium E. Presence of subgingival calculus F. C, D & E

Last Answer : F. C, D & E

Which of the following is NOT a characteristic of glass ionomer cements? a. strong in compression but weaker in tension True b. the matrix is formed during the initial set of the cement c. sets via an ion exchange reaction that continues for at least 24 hours true d. suitable for use as a core build up material in anterior teeth

Description : Which of the following is NOT a characteristic of glass ionomer cements? a. strong in compression but weaker in tension True b. the matrix is formed during the initial set of the cement c. sets via ... for at least 24 hours true d. suitable for use as a core build up material in anterior teeth

Last Answer : d. suitable for use as a core build up material in anterior teeth

Which of the following is the best index to evaluate gingival health: a. Gingival index by Loe and Silness. b. Periodontal index. c. Periodontal disease index. d. OHI. S.

Description : Which of the following is the best index to evaluate gingival health: a. Gingival index by Loe and Silness. b. Periodontal index. c. Periodontal disease index. d. OHI. S.

Last Answer : a. Gingival index by Loe and Silness.

when probing for periodontal disease the tip of the probe will be, A. At the coronal end of junctional epithelium B. At the top of the gingival calculus

Description : when probing for periodontal disease the tip of the probe will be, A. At the coronal end of junctional epithelium B. At the top of the gingival calculus

Last Answer : A. At the coronal end of junctional epithelium

The removable partial denture requires relining what would be the most appropriate action, A. take a new impression by asking the patient to occlude on it B. Provide equal space (maybe it was thickness) between denture and gingival tissues. C. Make sure the framework and retainers are seated in place before taking impression

Description : The removable partial denture requires relining what would be the most appropriate action, A. take a new impression by asking the patient to occlude on it B. Provide equal space (maybe it was ... gingival tissues. C. Make sure the framework and retainers are seated in place before taking impression

Last Answer : C. Make sure the framework and retainers are seated in place before taking impression

What is true about partial dentures, A. They cause immediate changes in the oral plaque behaviour B. Night wearing of dentures reduces plaque accumulation C. Relieving the gingival area reduces the gingival enlargement.

Description : What is true about partial dentures, A. They cause immediate changes in the oral plaque behaviour B. Night wearing of dentures reduces plaque accumulation C. Relieving the gingival area reduces the gingival enlargement.

Last Answer : A. They cause immediate changes in the oral plaque behaviour

The MOST common cause of gingival enlargement is: A. Hereditary B. Drug induced C. Plaque induced D. Leukaemia

Description : The MOST common cause of gingival enlargement is: A. Hereditary B. Drug induced C. Plaque induced D. Leukaemia

Last Answer : C. Plaque induced