CLB & GI Flashcards by Love Dog

setting time of Glass ionomer cement:

a. 12-5 minutes
b. 3-5 minutes
c. 8-10 minutes
d. 1-2 minutes

b. 3-5 minutes

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the smoothest resin surface is the one that is:

a. cured against a matrix
b. produced after using a fine pumice
c. produced after using a polishing strip
with aluminum oxide
d. produced after using a polishing strip
with zirconium silicone

c. produced after using a polishing strip
with aluminum oxide

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glass ionomer cements are water based cements known as glass polyalkenoate cements

a. true
b. false

a. true

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this is a problem that may result if done when the tooth is dry

a. finishing problems
b. poor retention
c. missing proximal contacts
d. incorrect shade
e. poor isolation of the operating area
f. halo around the enamel margin
g. voids

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the following characteristics describe auto cure glass ionomer cements except:

a. they require immediate protection from the environment
b. they remain subject to water loss and water uptake for at least 24
c. they have a prolonged setting reaction
d. most auto cure cements are
radiopaque

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powder component of glass ionomer cement is:

a. polyacrylic acid
b. aluminosilicate fluoride
c. zinc phosphate
d. quartz

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Diluric Resin

a. tertiary amine
b. triethylene glycol dimethacrylate
c. bisphenol A glycidyl methacrylate
d. aromatic Diketones

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this ia a technique wherein glass ionomer cement is packed into the bottom of a cavity to replace lost dentin and allowed to set and harden. a composite filling material is then packed on top of the glass ionomer cement

a. tunnel preparation
b. fissure widening and filling
c. pit and fissure sealant
d. sandwich or laminate technique

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this type of glass ionomer cement is recommended for use when aesthetic considerations are not important but a rapid set and good physical properties are required

a. type III
b. type II.2
c. type I
d. type II.1

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this is a technique wherein glass ionomer cement is packed into the bottom of a cavity
after it is cleaned using hand instrument only:

a. atraumatic restorative treatment
b. sandwich or laminate technique
c. pit and fissure sealant
d. tunnel preparation or internal fossa
approach

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the following are limitations of glass ionomer
cements except:

a. biocompatible with the pulp
b. slow setting polishability
c. inferior wear resistance to composites

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the following is a contraindication for the use of
glass ionomer cement:

a. class V erosion lesion
b. filling of proximal lesions of deciduous tooth
c. pits and fissures
d. replacement of complex class II amalgam restorations

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after placement of glass ionomer base, the mesial part of the pulpal floor is still concave with a depth of 3mm from the cavosurface margin

a. add 3mm of GIC base on the concave area
b. fill composite
c. add 1mm GIC base on the concave area
d. remove all glass ionomer cement then make a new mixture of GIC then apply to cavity preparation

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fast set autocure cements are susceptible to water loss two weeks after placement

True
false

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glass ionomer cements re preventive and conservative restorations because of:

a. fluoride content
b. resistance to erosion to acid
c. fluoride content and ability to adhere to tooth structure
d. ability to adhere to tooth structure

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glass ionomer cement of choice for restorations
on the proximal surface of deciduous teeth
where aesthetic considerations is important

a. type III
b. type l
C. type II.1
D. type 11.2

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glass ionomer cement material of choice for
cavity lining or cavity base is:

type I
type II
type II.2
type II.1
Type III

Type III

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restorative material with better mechanical
properties than Gl but inferior to composite

zinc phosphate
amalgam
calcium hydroxide
Compomer

Compomer

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Are pulp protection materials that are placed if your depth is around more than ___
a. 1 mm
b. 2 mm
c. 3 mm

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. t or f.

Beyond 2mm you have to protect the pulp so it will not cause any irritants just in case there will be leakage & also will not cause injury to the pulp

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Are thin layers of material that are used primarily to provide a barrier
a. Cavity Base
b. Cavity Liner
c. Both

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Are insulating material that also provide terminal protection for the pulp
a. Cavity Base
b. Cavity Liner
c. Both

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T or F about Cavity Liner

Not just the pulp but also you want to protect the dentin from residual reactant using out of a restoration or any fluid which may penetrate leaking tooth restoration interface.
Applied in very thick layers

F (Thick layers)

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for chemical insulation to prevent any chemical irritants to which dentin that is already vital (sensitive dentinal tubules that are directly connected to the pulp)

a. Cavity Base
b. Cavity Liner
c. Both

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Mechanical insulation a. Cavity Base b. Cavity Liner c. Both

Provide strong support during insertion of permanent restoration a. Cavity Base b. Cavity Liner c. Both A

Stimulation of formation of tertiary dentin a. Cavity Base b. Cavity Liner c. Both

For thermal insulation a. Cavity Base b. Cavity Liner c. Both

Use for direct and indirect pulp capping a. Cavity Base b. Cavity Liner c. Both

Sterilize residual carious dentin with its antibacterial action a. Cavity Base b. Cavity Liner c. Both

this is done when the tooth has no history of pain/asymptomatic and your excavating caries which are very deep and you can already see the pulp (pink spot). You put calcium hydroxide & temporary restoration material and then observe & hope that it will recover. a. Direct Pulp Capping b. Indirect Pulp Capping

if you have accidental pulp exposure and you hit it with the bur. And the rest of the cavity is already clean & if it's less than 0.5mm then you can do direct pulp capping. You put the calcium hydroxide directly on the expose pulp. You observe then hope that it will recover. a. Direct Pulp Capping b. Indirect Pulp Capping

T or f about CAVITY BASES 1. You put it with a thinner consistency to supplement mechanical support for the restoration by distributing local stresses from the restoration across the underlined dentin surface.

T or f about CAVITY BASES Beyond the tooth, you excavated & still little far from the pulp. So now put your base as a dentin substitute (flat- because your substituting the loss dentin to a base)

This is used as a cavity liner and only used in a very thin layer a. ZINC PHOSPATE CEMENT b. ZINC EUGENOL CEMENT c. CALCIUM HYDROXIDE d. POLYCARBOXYLATE CEMENT e. VARNISHES

CALCIUM HYDROXIDE 1. 2 paste system, when Mix the 2 together and you come up with your liner. a. Alkyl salicylate (acidic base) b. Filler calcium hydroxide (basic base) c. zinc oxide d. both a and b e. both a and c

That thin only which is sufficient to treat a near actual pulp exposure. What is the thickness? a. 0.5mm to 1.0 mm thickness b. 1mm to 2 mm thickness c. 1 mm to 3 mm thickness

CALCIUM HYDROXIDE Promotes ___ dentin formation a. primary b. secondary c. tertiary

CALCIUM HYDROXIDE Packing factor is very high & mass is not porous that's why you only use this as a sub base. Apply it very near the pulp a. only first is correct b. only second is correct c. both are correct d. both are wrong

What happens to pulp in contact with calcium hydroxide? a. Cannot be used as a base for composite because it can inhibit polymerization b. Since it is less irritating it has an obtundent effect of the pulp because of the eugenol which suits the pulp. c.Put the calcium hydroxide in a very thin layer because you will still put your provisional restoration d. It will somehow undergo coagulation or certain form of necrosis (physiologic type)

Powder-liquid dorm a. ZINC EUGENOL CEMENT b. ZINC PHOSPATE CEMENT c. BOTH

Powder: zinc oxide a. ZINC EUGENOL CEMENT b. ZINC PHOSPATE CEMENT c. BOTH

Powder: Zinc Oxide w/ magnesium oxide + tribismuth oxide + silicone dioxide a. ZINC EUGENOL CEMENT b. ZINC PHOSPATE CEMENT c. BOTH

Liquid: 45-55% orthophosphoric acid a. ZINC EUGENOL CEMENT b. ZINC PHOSPATE CEMENT c. BOTH

Liquid: Eugenol comes in a bottle a. ZINC EUGENOL CEMENT b. ZINC PHOSPATE CEMENT c. BOTH

ZINC EUGENOL CEMENT stronger type & reinforce ZOE, a. only first is correct b. only second is correct c. both are correct d. both are wrong

ZINC EUGENOL CEMENT Most amount of shrinkage & most irritating a. only first is correct b. only second is correct c. both are correct d. both are wrong

ZINC EUGENOL CEMENT Insulation at 1mm thickness. You cannot use a ZOE cement if you are going to use it for composite a. only first is correct b. only second is correct c. both are correct d. both are wrong

ZINC EUGENOL CEMENT Cannot be used as a base for composite because it can inhibit polymerization. Compatible for composite a. only first is correct b. only second is correct c. both are correct d. both are wrong

ZINC EUGENOL CEMENT Only use ZOE if your final restoration is CERAMIC. If you mix it thinly, it can also act as a liner a. only first is correct b. only second is correct c. both are correct d. both are wrong

ZINC EUGENOL CEMENT Since it is less irritating it has an ____ effect of the pulp because of the eugenol which suits the pulp. a. obtundent b. cooling c. plumping

ZINC EUGENOL CEMENT At present, it is not usually used except for OLDER PEOPLE. In cases wherein the patient keeps complaining of sensitivity, ZOE is more friendly. a. only first is correct b. only second is correct c. both are correct d. both are wrong

ZINC EUGENOL CEMENT ZOE can act as a liner & base depending on the need of the patient. If you use ZOE as a base make sure it is flat before you put the amalgam a. only first is correct b. only second is correct c. both are correct d. both are wrong

The setting time can be accelerated because it is slow setting material if you do the following: a. Increase the powder-liquid ratio b. Increase the temperature & humidity c. Add little water to the mix after mixing is complete d. Increase pressure movement & time during mixing e. all

ZINC PHOSPATE CEMENT 1. Compressive strength: ____ PSI highest a. 10-14,000 b. 12-17,001 c. 12-17,000

ZINC PHOSPATE CEMENT T or F. Not used anymore because this is the least irritating of all intermediary bases

T/ F ZINC PHOSPATE CEMENT . Is also used as base & a luting cement

T/ F ZINC PHOSPATE CEMENT Little acidic

T/ F ZINC PHOSPATE CEMENT Somehow acidized by the dentin

a.)POLYCARBOXYLATE CEMENT b.)VARNISHES __Powder-liquid form __Is an organic copal or resin gum suspended in solutions of ether & chloroform __2 coats must be placed, thickness of 2 to 5 microns __ Use to the line the cavity for amalgam in order to improve the marginal & cavity wall seal __Powder: Zinc Oxide plus magnesium oxide plus alumina __It take 24 hours of corrosion products to form

a__Powder-liquid form b__Is an organic copal or resin gum suspended in solutions of ether & chloroform b__2 coats must be placed, thickness of 2 to 5 microns b__ Use to the line the cavity for amalgam in order to improve the marginal & cavity wall seal a__Powder: Zinc Oxide plus magnesium oxide plus alumina b__It take 24 hours of corrosion products to form

a.)POLYCARBOXYLATE CEMENT b.)VARNISHES __While waiting, put varnish improve the seal __Under amalgam, this will somehow reduce most operative sensitivity __Liquid: 40-50% polyacrylic acid __Retards ion migration into dentin resulting less tooth discoloration __Very thin film __Can reduce leakage around the margins & walls of the cavity __Compressive strength: 7,000-9,000 PSI

b__While waiting, put varnish improve the seal b__Under amalgam, this will somehow reduce most operative sensitivity a__Liquid: 40-50% polyacrylic acid b__Retards ion migration into dentin resulting less tooth discoloration b__Very thin film b__Can reduce leakage around the margins & walls of the cavity a__Compressive strength: 7,000-9,000 PSI

a.)POLYCARBOXYLATE CEMENT b.)VARNISHES __Prevents penetration of corrosive products of amalgam to dentin __Same with ZOE, do not use this in composite restorations because it intertere with the setting reaction __Able to provide effective thermal insulation in thickness of 1.5mm __Don't use it with GI restoration because it will prevent fluoride release __Only compatible with amalgam __Irritant to the pulp dentin organ

b__Prevents penetration of corrosive products of amalgam to dentin b__Same with ZOE, do not use this in composite restorations because it intertere with the setting reaction a__Able to provide effective thermal insulation in thickness of 1.5mm b__Don't use it with GI restoration because it will prevent fluoride release b__Only compatible with amalgam a__Irritant to the pulp dentin organ

applied to cavity walls when using Silicates, Silicophosphate, GIC and even composites.

Use: Only for cavity preparations to be filled with amalgam (regardless of the depth)

Varnish/ sealer should be applied on all walls or floors of the cavity

Bases/ Sub-bases/ Liners should be applied only on pulpal floor & Axial wall (in case of class II cavity)

Should be nothing on enamel walls

Never apply base/sub-base/liner on other walls & gingival floor (in case of class II cavity)

If you have ideal depth of 1.5 to 2mm, no need for liner base

If it doesn't reach the pulp yet, you can just use ZOE liner/base

it is very important to know when you are going to use the cavity bases & liners.

_It is very dependent on depth of the tooth prep

Are water-based cements known as glass-polyalkenoate cements -zoe cement -hydrosilica cement -glass ionomer cement -poly carboxylate cement

glass ionomer cement

T/F GLASS IONOMER CEMENTS Consists of: Aluminosilicate and fluoride interacted with a poly

gi cement is a: -alkenoic acid -alkaline acid -flouride acid

alkenoic acid

24% of the cement is -water -flouride -aluminum -gutta percha

water

GLASS IONOMER CEMENTS it may be loosely bound water which may be remove by dehydration when cemented exposed to air. Or tightly bound water that is not removed when exposed to air. -first true -second true -both true -both false

both true

t or f If you are going to use GIC as final restoration, you need to put a protective covering on glass ionomer filling while its setting so it will not loose or absorb water

a.)Silica: b.)Alumina: c.)Ca Fluoride: d.)Al Fluoride: e.)Sodium Fluoride: f.)Al Phosphate: g.)Grain size: __3.0 __9.9 __13-19 microns __29.0 __16.6 __34.3 __73

a.)Silica: 29.0 b.)Alumina: 16.6 c.)Ca Fluoride: 34.3 d.)Al Fluoride: 73 e.)Sodium Fluoride: 3.0 f.)Al Phosphate: 9.9 g.)Grain size: 13-19 microns

Liquid , except: -h20 -Polyacrylic -Itatonic -Tartaric > 5% by weight

h20

Use glass ionomer as a luting cement A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

These are glass ionomer used as restorative cements classified to 2 A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Wherein you have restorative aesthetic glass lonomer A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

It comes in shades as well A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Restorative reinforced A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Used as a lining or base cements A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Glass ionomer can be used as a liner or base based on the consistency A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Usually one part of powder. two parts of liquid then mix it well and put it in the crown that you are going to cement A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Auto-cured/self-cured A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Dual-cured- wherein you cure first then continue setting via the chemical reaction A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

If you want to use it as a liner- thinner consistency A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

_If you want to use it as a base- thicker consistency A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Stronger than the regular composites A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

More for posterior teeth A.)TYPE I B.)TYPE II C.)Type 2.1 D.)Type 2.2 E.)TYPE III

Sets initially via light activated reaction & the acid-based reaction would continue overtime. a.)Auto Cure b.)Dual Cure

Setting time: 3-5 minutes a.)Auto Cure b.)Dual Cure

Mixing time: 40 seconds a.)Auto Cure b.)Dual Cure

It usually takes 24 hours for the final setting to be achieved. a.)Auto Cure b.)Dual Cure

So you have to work fast and put the material to the tooth a.)Auto Cure b.)Dual Cure

Are materials consisting of ion cross linked polymer materials surrounding glass reinforce filling particles. -zoe cement -hydrosilica cement -glass ionomer cement -poly carboxylate cement

glass ionomer cement

GIC INDICATIONS(t or f) __Persons with low caries index

GIC INDICATIONS(t or f) Because GIC will release fluoride and there are benefits of fluoride.

GIC INDICATIONS(t or f) Areas subjected to short temperature changes

GIC INDICATIONS(t or f) Root surface caries in class I locations

GIC INDICATIONS(t or f) Slot-like prep in either Class I or Class III cervical locations

GIC INDICATIONS(t or f) Areas of abrasion, erosion w/o cavity prep - eroded areas in cervican

GIC INDICATIONS(t or f) use this for class I

GIC INDICATIONS(t or f) But what is usually recommended is the lightcured Gl cement

T OR F 1)GIC bonds well to both enamel and dentin thus place GI to enamel area

T OR F GIC is only recommended for use in deciduous teeth, including Class III lingual approach

T OR F )If the final resto is a crown, substitute all lost caries using composite. However at present, we are using GI as a core build-up because it is stronger than composite

T OR F GIC is superior to composite and amalgam

T OR F Use GIC in high stress areas.

Write A if TRUE, and B if false I.Indications for GIC __ Pit and fissure sealant __ Class Ill lingual approach, permanent teeth __ Repairs of defective marginal restorations __ Permanent teeth __ deciduous teeth __ Any minimal cavity preparation __Core build-up __Temporary restoration __Sealing of crown surfaces

A - Pit and fissure sealant B - Class Ill lingual approach, permanent teeth (DECIDUOUS TEETH) A - Repairs of defective marginal restorations B - Permanent teeth (FALSE) A - deciduous teeth A - Any minimal cavity preparation A -Core build-up A -Temporary restoration B -Sealing of crown surfaces (ROOT SURFACES

GIC can be used on ___ the antagonist is a denture because the compressive strength is quite low a. deciduous teeth b. Permanent teeth c. geriatic patients d.none

c. geriatic patients

GIC is STRONGER than regular GIC a. Luting b. Liner c. Resin Modified

T/F GIC can be used as temporary restoration before crowns but may opt to just change it if it's already painful or if a patient will request to have it changed.

Which of the ff are limitations for GIC? a. Toughness b. tensile strength c. wear resistance d.hardness e.all

GIC sets in a relatively long time, approx? a. 1-2 mins b. 3-5 mins c. 5-10 mins

Write A if TRUE, and B if false II.Contraindications for GIC __ Class III: because of stress (high stress area) on the incisal edges of anterior teeth during mastication __ Class Il: stress bearing area __ 3 loss of cusp area __ small carious lesions especially when esthetics are involve __ Glass ionomer cement translucent __ Glass ionomer cement are opaque

B - Class III: because of stress (high stress area) on the incisal edges of anterior teeth during mastication (DAPAT CLASS IV) A -Class Il: stress bearing area A - 3 loss of cusp area B - small carious lesions especially when esthetics are involve (LARGE CARIOUS LESIONS) B - Glass ionomer cement translucent (OPAQUE) A -Glass ionomer cement are opaque

Write A if TRUE, and B if false III.Advantages for GIC __Anti-cariogenic property __Adheres to the Calcium (Ca) of the tooth substance __Biocompatible to the crown __Unsatisfactory color matching __Low carious attack on the tooth compared to other cements __reports of microleakage or recurrent caries

A- Anti-cariogenic property A- Adheres to the Calcium (Ca) of the tooth substance B -Biocompatible to the crown (PULP) B -Unsatisfactory color matching (SATISFACTORY) A- Low carious attack on the tooth compared to other cements B -reports of microleakage or recurrent caries (NO REPORTS)

A- TRUE, B - FALSE IV.Advantages for GIC __Free alkyl ions of Gl has high potential for adhesion to the tooth __Translucency of Gl- acceptable esthetically (but if the need of esthetic is high, use composites) __Releases fluoride and it bonds to the tooth __Clinical handling is not demanding __Long term stability in the oral environment __Sometimes galvanic reaction __Placed in many appointments __Often placed without need of local anesthesia

B -Free alkyl ions of Gl has high potential for adhesion to the tooth (CARBOXYL) A -Translucency of Gl- acceptable esthetically (but if the need of esthetic is high, use composites) A -Releases fluoride and it bonds to the tooth A -Clinical handling is not demanding A -Long term stability in the oral environment B -Sometimes galvanic reaction (NO GALVANIC) B -Placed in many appointments (ONE) A-Often placed without need of local anesthesia

GIC has High initial solubility after mixing. Setting must take place in an area free from __ contamination a. air b. dirt c. chemical d.water

GIC has poor polishability due to the homogenous and porous structure of the material a.true b.false

A technique in applying GIC if you have a deep cavity prep and it is sandwiched between the tooth and the restoration a. sandwhich technique b.step-by-step technique c.managbaby technique d.none

Sandwhich technique proper sequence: a. Dentin -> GIC -> Restorative Filling Materials b.Dentin-> Restorative Filling Materials -> GIC c.Dentin -> GIC -> Composite or Amalgam d. two of the above

CLINICAL APPLICATION OF RESTORATOVE GIC a. Class III b.Class V c.Class I d. Class V light / dual-cured e.all f.none

A- True, B - False VI.Atraumatic Restorative Treatment (ART) __For base, if deep cavity prep, make a thin base __for class IIl use of GIC as a liner, you may do so. __follow the manufacturer's instructions __Make the consistency a liner that is thicker than the base

B -For base, if deep cavity prep, make a thin base (THICK BASE) A- for class IIl use of GIC as a liner, you may do so. A- follow the manufacturer's instructions B -Make the consistency a liner that is thicker than the base (LINER MUST BE THINNER THAN THE THICK BASE)

SEQUENCING: Atraumatic Restorative Treatment (ART) __fill it with GIC __ Make a cavity prep using hand instrument __update from the dentin is ok __isolate the area __fill it with GIC __excavate up to hard/firm dentin

5 -fill it with GIC 1 - Make a cavity prep using hand instrument 3 -update from the dentin is ok 4 -isolate the area 2 -excavate up to hard/firm dentin

A- True, B - False V.Clinical Application __Permanent dentition __Core buildup __Non-Atraumatic Restorative Treatment (ART)

B -Permanent dentition (Primary) A-Core buildup B -Non-Atraumatic Restorative Treatment NART (atraumatic)

CLB & GI Flashcards

(131 cards)