Restorative Pedo Lec2

8/7/2019 Restorative Pedo Lec2

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Mercury,Esthetics !!!

Amalgam


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Composite

Fillers, Shrinkage !!!


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GIC

Fluoride release,adhesionvs Wear !!!


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Wilso

n 1970Glass IonomerCement


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CONBINES THE ADVANTAGES OF BOTH GLASSIONOMER CEMENTS AND COMPOSITE

RESTORATIONS

i.e. BONDING TO DENTIN, FLUORIDE RELEASEAND NO POLYMERIZATION SHRINKAGE + BETTER

ESTHETICS,

BONDING TO ENAMEL AND BETTER WEARRESISTANCE.

SANDWICH TECHNIQUE


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Resin reinforced GIC


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Resin modified glass ionomers

They contain the samecomponents as traditionalGICs, but have a resin

material added to provide

strength


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Resin modified glass ionomers

Two

co

mpo

nent system Initiators

Acid base reaction


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Compomers


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Compomers

Poly acid modified resins

They are essentially resin compositeswhere the resin monomer is modifiedto contain acidic functional groupscapable of participating in an acid

base reaction after the polymerizationof the resin molecule has taken place


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Compomers

Single component system,where resin polymerization

takes place after curingthen a glass ionomer

reaction takes place in thepresence of saliva.


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Amalgam

Composite

GIC

Resin reinforced GIC

Compomers


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Caries risk

assessmentRisk factors and indicators


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A complete series offinal restorations shouldnot be placed for a

patient in whom there isstill active disease


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Caries activity testingTo predict cariogenic potential

They are most useful forpatient motivation and for

monitoring patients progress

after proper oral hygienelevels have been attained


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Lactobacilli are more related tomisuse of CHO, while highnumbers of S. mutans willreflect the patients difficulty inmaintaining oral hygiene.

Lactobacilli are not sensitive tochlorhexidine

DeSoet, Dental Update,1998


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Modified Snyder testIt is a colorametric testthat measures the amount

of acid formed in acarbohydrate medium bymicroorganisms in saliva

(acidogenic potential)


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Bromcresol green

Blue green Yellowacid

pH 4.7 - 5

pH 4.2 4.6

pH < 4

positive


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marked + veModerate - ve + ve

slight - ve - ve +ve

- ve - ve - ve - ve

24 h 48 h 72 h

Caries activity

Modified

Snydertest


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Caries detecting Dye

1% acid red solutionin propylene glycol

Bonds t

odenaturatedcollagen


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Air abrasion

Aluminum Oxide Particles


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Isolation & drying.

Application of C.D.

After 10 sec, wash. Remove stained tissue.

Repeat staining.


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artAtraumatic Restorative

Treatment

Alternative restorative

treatment


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Frencken 1994

Fuji IX is betterthan Fuji III

ART


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Restorative Pedo Lec2

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