In a posterior vital molar with a core the best material to restore is: A. Amalgam B. Composite resin C. GIC

In a posterior vital molar with a core the best material to restore is:
A. Amalgam
B. Composite resin
C. GIC
by

1 Answer

Answer :

A. Amalgam
by

Related questions

Which one of this restorative methods will be LEAST compromised by a core, A. Amalgam B. Composite C. GIC D. Cast gold

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A large amalgam core is to be condensed around several pins in a vital molar tooth; what type of amalgam mix would you prefer: A. A large mix to ensure homogeneity B. A large with extra mercury to give easier manipulative qualities C. Several small mixes, sequentially triturated D. Several small mixes with varying mercury/alloy ratios E. A basic mix to which additional mercury is added as needed

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Last Answer : C. Several small mixes, sequentially triturated

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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Sensitivity to hot and cold foods soon after cavity preparation and placement of GIC and composite resin in an upper incisor tooth is due to: A. Mechanical trauma due to cavity preparation B. Chemical C. Heat from GIC settings

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

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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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A patient has a small incisal fracture of the maxillary incisor. Which is the best material to resist fracture at the acid etched tooth composite interface: A. Micro-filled composite B. Hybrid composite C. GIC D. Silicate

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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

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A patient comes to you with medium pain of tooth filled with Composite resin as a result of cold or hot drinks, what will your initial management be, A. Remove the restorative material and start an Endontic treatment B. Remove the restorative material and place a sedative temporary material C. Place a coat of bonding material on the old composite

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Last Answer : B. Remove the restorative material and place a sedative temporary material

Which material is not compatible with composite resin: A. Zinc Oxide eugenol (ZOE) B. Ca(OH)2 C. Carboxylate D. Zinc phosphate cement

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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

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

A patient presents to you with a history of local pain in the lower right posterior region, insisting that you extract his lower teeth. The teeth in question are vital without any pathology. You diagnosis is: A. Odontalgia B. Referred pain C. Trigeminal neuralgia

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Last Answer : C. Trigeminal neuralgia 

What is NOT CORRECT in regard to the lingual nerve: A. It is posterior and medial to the inferior alveolar nerve B. It passes close to the mandibular 3rd molar C. It may be anaesthetised by the mandibular nerve block D. It provides supply to the lingual gingiva E. Supplies anterior 2/3 of the tongue

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Last Answer : A. It is posterior and medial to the inferior alveolar nerve

The clinical advantage of porcelain laminate veneers over composite resin veneers is: A. Color stability and resistance to abrasion B. Availability of self-curing or light activated placement (yes but not necessary a clinical advantage) C. Minimal over-contouring of the treated teeth ( not necessarily true depends on the dentist's abilities) D. May be used in edge to edge occlusion or Class III relationships.

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Last Answer : A. Color stability and resistance to abrasion

Etching a hybrid glass ionomer-composite a. is necessary for composite resin bonding b. is not necessary for composite resin bonding c. is necessary for adding a glass ionomer cement for repair d. is not necessary for adding a glass ionomer cement for repair e. a 3-5 second etch with 10% phosphoric acid is recommended

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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

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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

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Last Answer : A. Replace the composite

Class V composite resin restorations can be polished, A. 24 hours after application B. Immediately after application C. 3 to 4 days D. 3 to 4 weeks E. Not at all

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Last Answer : B. Immediately after application

What is the advantage of composite over silicate resin: A. Less shrinkage B. Less surface erosion C. Less water absorption D. All of the above

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Last Answer : D. All of the above

When do you finish composite resin restorations: A. Immediately after curing B. After 24 hours C. A week after placement

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Last Answer : A. Immediately after curing

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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A 50 years-old patient presents with pain from time to time on light cervical abrasions. What is your first management to help patient in preventing pain in the future? A. Change diatary habits B. Change brushing habits C. GIC fillings

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Which cement is less soluble in the oral cavity: A. Polycarboxylate B. Zinc phosphate C. Silicate phosphate D. GIC

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If temporary cementation is required, which cement will you use: A. ZOE B. Zinc Polycarboxylate C. GIC

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The first step in the treatment of erosion is: A. Pumice and water B. Spray with Na-bicarbonate C. GIC

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Last Answer : A. Pumice and water

How do you treat dentine before applying GIC A. Conditioner B. Pumice & water

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Prolonged GIC setting time can be achieved by, A. Cool down the slab B. Increase the amount of distilled water

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The best way to clean a cavity before the placement of GIC is,** A. H2O2 B. Phosphoric Acid C. Polyacrylic acid 10% sturdavent 563pag

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Before filling a class V abrasion cavity with GIC you should(+adc March07) A. Clean with pumice, rubber cup, water and weak acid B. Dry the cavity thoroughly before doing anything C. Acid itch cavity then dry thoroughly

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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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Oral mucosal pigmentation; what is TRUE: a. Commonly depends on ethnicity. b. Commonly an amalgam tattoo. c. Commonly oral melanoma. d. Commonly melanotic naevus.

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

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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

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What is the property of high copper amalgam A. Reduced physical creep B. Higher retention

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After the placement of a class I amalgam the patient comes back to you complaining of pain on masticating and biting; what is the first thing you would look at, A. Occlusal height B. Contacts areas

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Last Answer : A. Occlusal height

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

High content copper amalgam . . . a. generally requires greater energy to accomplish trituration b. should be placed rapidly in large increments c. Continues to leak since the corrosion products do not form d. does not cause galvanism in oral environment e. is equally effective as conventional alloys in clinical studies

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Last Answer : a. generally requires greater energy to accomplish trituration

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

What is TRUE about Oral mucosal pigmentation;: A. Commonly seen in ethnic groups B. Commonly an amalgam tattoo C. Commonly oral melanoma D. Commonly melanotic naevus What is TRUE about Oral mucosal pigmentation;: A. Commonly seen in ethnic groups B. Commonly an amalgam tattoo C. Commonly oral melanoma D. Commonly melanotic naevus

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Last Answer : A. Commonly seen in ethnic groups

How much would you reduce a cusp to be replaced with amalgam onlay: A. 2 mm to achieve a good retention form B. 2mm to achieve a good resistance form C. 1mm

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Last Answer : B. 2mm to achieve a good resistance form

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

At what angle to the external surface should proximal cavosurface walls in Class II preparation for the reception of an amalgam filling be finished: A. Acute angle B. Right angle C. Obtuse angle D. 45 angle

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Last Answer : C. Obtuse angle

Corrosion and discolouration of amalgam restorations is usually caused by: A. Sulphur oxides B. Oxygen C. Chlorides D. Over trituration

Description : Corrosion and discolouration of amalgam restorations is usually caused by: A. Sulphur oxides B. Oxygen C. Chlorides D. Over trituration

Last Answer : A. Sulphur oxides

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

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