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

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
by

1 Answer

Answer :

A. The wider the gap the better the chance of secondary caries
by

Related questions

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.

For fissure and sealant treatment to be a part of the primary pretentive care: A. Place sealant on teeth which are at high risk of caries B. Place sealant on newly erupted teeth

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Last Answer : B. Place sealant on newly erupted teeth

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.

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How can you improve the adhesion of a fissure sealant: A. Acid etching technique

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If amalgam gets contaminated with moisture, the most uncommon result is:** A. Blister formation B. Post operative pain C. Secondary caries D. Lower compressive strength

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Good oral hygiene and fluoridation is LEAST useful in preventing caries of: A. Pit and fissure B. Smooth surface C. Inaccessible areas

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Pit and fissure caries start at: A. bottom of the fissure B. walls of the fissure

Description : Pit and fissure caries start at: A. bottom of the fissure B. walls of the fissure

Last Answer : B. walls of the fissure

What effect do fissure sealants have on caries progression: A. Reduce new caries and hamper the progress of freshly established caries B. Reduce new caries and hamper the progress of existing caries

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The function of varnish: A. To reduce initial marginal leakage “Short-term leakage” B. To prevent long term leakage

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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

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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

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Caries which is close to the pulp chamber; on x rays you find ‘dens in dente’; the right treatment is: A. Zinc oxide eugenol cement and amalgam B. Pulpectomy C. Pulpotomy D. Calcium hydroxide on pulp and amalgam

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.The main advantage of amalgam with high content of Cu is: A. Better marginal sealing B. Less corrosion C. Better tensile strength D. Higher and immediate compressive strength

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What is TRUE in regard to the preparation of occlusal rests: A. Use an inverted cone bur B. Use a flat fissure bur C. Parallel to occlusal plane D. At right angle to the long axis of tooth E. None of the above

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Last Answer : E. None of the above

All of the following are requirements of mucoperiosteal flap except of: A. Base is wider than free margin B. Mucous membrane is carefully separated from periosteum C. Base has an adequate blood supply D. Flap wider than bony defect that will be present at conclusion of operation E. Mucoperiosteum is carefully separated from bone

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All of the following are requirements of an adequate mucosal periosteal flap except:** A. Base is wider than the free margin B. Mucous membrane is carefully separated from periosteum C. Base containing blood supply

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Last Answer : B. Mucous membrane is carefully separated from periosteum 

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

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 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

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Last Answer : e. all of the above

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

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Which of the following would be ONE possible indication for indirect pulp capping?*** A. Where any further excavation of dentine would result in pulp exposure. B. Removal of caries has exposed the pulp C. When carious lesion has just penetrated DEJ

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What is correct in regard to high copper amalgam, A. Reacts and strengthens the amalgam by its dispersion properties B. Reacts to form copper-tin phase thereby eliminating the tin-mercury phase C. Reacts to form copper-silver phase thereby eliminating the silver mercury phase D. Reacts and strengthens the amalgam by its grain diffusion

Description : What is correct in regard to high copper amalgam, A. Reacts and strengthens the amalgam by its dispersion properties B. Reacts to form copper-tin phase thereby eliminating the tin-mercury ... thereby eliminating the silver mercury phase D. Reacts and strengthens the amalgam by its grain diffusion

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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.

What is the most common fracture of Class II amalgam restorations: A. Isthmus because of insufficient depth B. Internal fracture C. Marginal ridge site

Description : What is the most common fracture of Class II amalgam restorations: A. Isthmus because of insufficient depth B. Internal fracture C. Marginal ridge site

Last Answer : A. Isthmus because of insufficient depth

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

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

When preparing a class III cavity for composite restoration; in which situation should acid itching be used: A. Always should be performed to minimise marginal leakage B. Should not be performed because it might damage the adjacent tooth C. When extra retention is required D. Only in situations where cavity is shallow to avoid pulp irritation

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Last Answer : A. Always should be performed to minimise marginal leakage

A patient complains of sensitivity, on examination you find a composite filling restoring a good cavity preparation without any secondary caries; what is your next step: A. Extirpate the pulp that is obviously inflamed B. Place ZOE dressing to sedate the pulp C. Ask patient to come back in six months D. Repeat restoration

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Last Answer : B. Place ZOE dressing to sedate the pulp

What is the affect of office dental prophylaxis of regular six month intervals on children’s oral health? A. Reduce caries incidence by approximately 30% B. Provide a long term improvement in oral hygiene C. Provide a short term improvement in oral hygiene D. Prevent gingivitis E. Reduce the need for patient cooperation

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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

Which one of following statement about Overdenture is not correct: A. Greater occlusal loads can be applied by the patient B. Retention and stability are generally better than with conventional complete denture C. Alveolar bone resorption is reduced D. The retained roots are covered by the denture thus protecting them from caries and periodontal diseases

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Last Answer : D. The retained roots are covered by the denture thus protecting them from caries and periodontal diseases

Which of the following is true regarding the project scope statement?A. The project scope statement includes a change control system that describes how to make changes to the project scope. B. The project scope further elaborates the Initiating processes and serves as a basis for future project decisions. C. The project scope statement describes how the team will define and develop the work breakdown structure. D. The project scope statement assesses the reliability of the project scope and describes the process for verifying and accepting completed deliverables.

Description : Which of the following is true regarding the project scope statement? A. The project scope statement includes a change control system that describes how to  make changes to the ... reliability of the project scope and describes  the process for verifying and accepting completed deliverables.

Last Answer : B. The project scope further elaborates the Initiating processes and serves as a basis  for future project decisions.

What is Central Sulcus (Fissure of Rolando)?

Description : What is Central Sulcus (Fissure of Rolando)?

Last Answer : Central sulcus is a Deep grove that separates the parietal and frontal lobes

Occlusal cavity with extension of the buccal fissure is classified as, A. Class II B. Class III C. Class I D. Class V

Description : Occlusal cavity with extension of the buccal fissure is classified as, A. Class II B. Class III C. Class I D. Class V

Last Answer : C. Class I

the location of Class V is in, A. The buccal pit /fissure/ B. The occlusal surface C. The cervical third

Description : the location of Class V is in, A. The buccal pit /fissure/ B. The occlusal surface C. The cervical third

Last Answer : C. The cervical third

In respect to Class V A. it occurs on the buccal groove (fissure) B. it occurs on the lingual groove (fissure) C. it is a result of bad oral hygiene

Description : In respect to Class V A. it occurs on the buccal groove (fissure) B. it occurs on the lingual groove (fissure) C. it is a result of bad oral hygiene

Last Answer : C. it is a result of bad oral hygiene

Which rotary instrument gives the smoothest enamel cut? a. carborundum stone (green stone) b. aluminum oxide stone (white stone) c. plain fissure bur d. cross-cut fissure bur e. medium diamond bur (great efficiency but roughest cut)

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Last Answer : c. plain fissure bur

The palatal pulp horn of maxillary molars is located: A. In the pulpchamber under mesiolingual cusp B. In the pulpchamber opposite the mesio distal fissure of the buccal cusp C. Under the disto lingual cusp

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Last Answer : A. In the pulpchamber under mesiolingual cusp

How do you prepare the floor of pulp chamber in molars: A. Swab and dry with cotton wool and excavate B. Use round bur to flatten the floor C. Under cut walls D. Use flat end fissure bur to make it levelled

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Benign migratory glossitis or Geographic Tongue, manifests itself in the oral cavity as, A. Irregularly outlined areas of hyperkeratosis of the dorsal surface of the tongue B. Furrows outlined the dorsal surface radiating out from a central groove in the centre of the tongue C. Loss (atrophy) of filiform papillae in multiple irregularly outlined areas D. Irregularly outlined erythematous area of hyper trophic fungiform E. A fibrinous exudate on the dorsal surface F. Grooves (fissures) radiating from a central fissure G. Irregular area in the midline of the tongue

Description : Benign migratory glossitis or Geographic Tongue, manifests itself in the oral cavity as, A. Irregularly outlined areas of hyperkeratosis of the dorsal surface of the tongue B. Furrows outlined the ... (fissures) radiating from a central fissure G. Irregular area in the midline of the tongue

Last Answer : C. Loss (atrophy) of filiform papillae in multiple irregularly outlined areas

A major difference between light cured and chemical cured composite is that during setting or in function the light cured material tends to:******** VERY IMP A. Seal the margins better and completely B. Exhibit less wear on time C. Undergo greater colour change D. Shrink more rapidly E. Posses greater fracture toughness

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Last Answer : D. Shrink more rapidly

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

What is not true about tobacco smoking: a. Redox potential favours growth of anaerobic bacteria. b. It is caries immuno-suppressive. c. It is adrenergic. d. Affects neutrophils and chemotactic factors.

Description : What is not true about tobacco smoking: a. Redox potential favours growth of anaerobic bacteria. b. It is caries immuno-suppressive. c. It is adrenergic. d. Affects neutrophils and chemotactic factors.

Last Answer : b. It is caries immuno-suppressive.

Community water fluoridation MOST effectively achieves: a. 90. 95% reduction of caries. b. 45. 55% reduction of caries. Esta se corrects si no tuviera la ultima opcion c. Reduces pit and fissures caries more than smooth surfaces. d. Reduces smooth surfaces more than pit and fissures.

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Last Answer : d. Reduces smooth surfaces more than pit and fissures.

for dental caries to progress in dentine, A. the dentine must contain soluble collagen B. enamel must contain glycoproteins C. diet must contain simple carbohydrate D. diet must contain polysaccharides E. pulp must contain complement

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Last Answer : C. diet must contain simple carbohydrate

The most common cause of caries in children is, A. Soft diet B. High intake of carbohydrate C. Poor oral hygiene

Description : The most common cause of caries in children is, A. Soft diet B. High intake of carbohydrate C. Poor oral hygiene

Last Answer : B. High intake of carbohydrate

What is NOT true about tobacco smoking: A. Redox potential favours growth of anaerobic bacteria B. It is caries immuno-suppressive C. It is adrenergic D. Affects neutrophils and chemotactic factors

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Last Answer : B. It is caries immuno-suppressive

The most common reason to refer a child to a pedodontist is problems with: A. Rampant caries B. Behaviour management C. Endodontic treatments in primary teeth D. Space maintainers

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Bitewing x rays are taken to assist in the detection of caries :** A. Occlusally B. Lingually C. Buccally D. Gingivally E. Interproximally

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Last Answer : E. Interproximally