,Chapter 01: Introduction to Restorative Dental Materials
x x x x x x
xPowers: Dental Materials, 11th Edition
x x x x
MULTIPLE xCHOICE
1. What x causes x caries?
a. Food x debris
b. Materia x alba
c. Acidic x foodstuff
d. Bacterial x plaque
e. Salivary x glycoproteins
ANS: D
Feedback
A Food xdebris xdoes xnot xhave xthe xstructural xorganization xof xbacterial xplaque
xbiofilm.
B Materia xalba xdoes xnot xhave xthe xstructural xorganization xof xbacterial xplaque
xbiofilm.
C Acidic xfoodstuff xlowers xpH xand xmay xdemineralize xteeth xbut xdoes xnot xdirectly
xcause xdecay.
D Caries x is x caused x by x biofilm; x also x known x as x bacterial x plaque.
E Salivary xglycoproteins xform xthe xacquired xenamel xpellicle xto xwhich xbacteria
xadhere.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, x GC, x V, xA,1b. x Patient x Education x and x Oral x Health x Management
MSC: x NBDHE, x6.0 xProviding xSupportive xTreatment xServices, x6.1 xProperties xand xManipulation xof
x Materials
2. Caries x is x most x likely x to x occur x on x which x of x the x following x tooth x surfaces?
a. Buccal
b. Lingual
c. Occlusal
d. Interproximal
e. C x and x D x are x both x correct.
ANS: E
Feedback
A Buccal xsurfaces xare xalso xsusceptible xto xcaries; xhowever, xthere xis xless xsurface
xarea xleft xunchecked.
B Lingual xsurfaces xare xalso xsusceptible xto xcaries; xhowever, xthere xis xless xsurface
xarea xleft xunchecked.
C Caries xis xmost x likely xto xoccur x in xpits xand x fissures xon xthe x occlusal x surface
xand xon x interproximal x tooth xsurfaces x where xplaque xaccumulates
x unchecked.
D Caries xis xmost x likely xto xoccur x in xpits xand x fissures xon xthe x occlusal x surface
xand xon x interproximal x tooth xsurfaces x where xplaque xaccumulates
, x unchecked.
E Caries xis xmost x likely xto xoccur x in xpits xand x fissures xon xthe x occlusal x surface
xand xon x interproximal x tooth xsurfaces x where xplaque xaccumulates
x unchecked.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, x GC, x III, x B, x 1, x Describe x how xto x prepare, x mix, x deliver, x and x store x restorative
x materials, xincluding x but x not x limited x to x a. x amalgam, x c. x composites
MSC: x x NBDHE, x 6.0 x Providing x Supportive x Treatment x Services, x 6.5 x General
3. Which x of x the x following x is x an x intracoronal x restoration?
a. Ceramic–alloy x crown x on x tooth x number x 21
b. Ceramic x veneer x on x tooth x number x 8
c. Ceramic x onlay x on x tooth x number x 30
d. Ceramic x inlay x on x tooth x number x 14
ANS: D
Feedback
A The xalternate xchoices xare xall xextracoronal xrestorations xused xto xrepair xthe
xexternal.
B The x alternate x choices x are x all x extracoronal x restorations x used x to x repair x the
external.
C The xalternate xchoices xare xall xextracoronal xrestorations xused xto xrepair xthe
xexternal.
D A xceramic xinlay xon xtooth xnumber x14 xis xan xexample xof xan xintracoronal
x restoration, xmeaning xthat xthe xrestoration xis xbeing xused xto xrepair xdamage
x restricted x to x the x internal x parts x of x a x tooth. x Materials x such x as x amalgam
x and xcomposite x resin x are x used x in x addition x to x ceramic x or x cast x metal.
DIF: Knowledge REF: p. 4 OBJ: 3
TOP: CDA, x GC, x III, x B, x 1, x Describe x how xto x prepare, x mix, x deliver, x and x store x restorative
x materials, xincluding x but x not x limited x to x a. x amalgam, x c. x composites
MSC: x x NBDHE, x 6.0 x Providing x Supportive x Treatment x Services, x 6.5 x General
4. What x is x the x process x called x where xdecay x is x removed x from x the x tooth x in x order
x for x a xrestoration xto xbe xplaced?
a. Cavity x preparation
b. Convenience x form
c. Margination
d. Extension
ANS: A
Feedback
A The xprocess xis xreferred xto xas xcavity xpreparation. xCavity xpreparation xis xused
x to xremove xdiseased xor xdamaged xtissue xand xprovide xa xspace xaccessible xfor
xrestoration x and x one x that x can x stably x retain x the x restoration.
B Convenience x form x is x a x term x describing x the x nature x of x the x cavity x preparation.
, C Extension x is x a x term x describing x the x nature x of x the x cavity x preparation.
D Margination x is x the x procedure x for x finishing x the x margins x of x a x restoration.
DIF: Knowledge REF: p. 4 OBJ: 2
x x x x x x
xPowers: Dental Materials, 11th Edition
x x x x
MULTIPLE xCHOICE
1. What x causes x caries?
a. Food x debris
b. Materia x alba
c. Acidic x foodstuff
d. Bacterial x plaque
e. Salivary x glycoproteins
ANS: D
Feedback
A Food xdebris xdoes xnot xhave xthe xstructural xorganization xof xbacterial xplaque
xbiofilm.
B Materia xalba xdoes xnot xhave xthe xstructural xorganization xof xbacterial xplaque
xbiofilm.
C Acidic xfoodstuff xlowers xpH xand xmay xdemineralize xteeth xbut xdoes xnot xdirectly
xcause xdecay.
D Caries x is x caused x by x biofilm; x also x known x as x bacterial x plaque.
E Salivary xglycoproteins xform xthe xacquired xenamel xpellicle xto xwhich xbacteria
xadhere.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, x GC, x V, xA,1b. x Patient x Education x and x Oral x Health x Management
MSC: x NBDHE, x6.0 xProviding xSupportive xTreatment xServices, x6.1 xProperties xand xManipulation xof
x Materials
2. Caries x is x most x likely x to x occur x on x which x of x the x following x tooth x surfaces?
a. Buccal
b. Lingual
c. Occlusal
d. Interproximal
e. C x and x D x are x both x correct.
ANS: E
Feedback
A Buccal xsurfaces xare xalso xsusceptible xto xcaries; xhowever, xthere xis xless xsurface
xarea xleft xunchecked.
B Lingual xsurfaces xare xalso xsusceptible xto xcaries; xhowever, xthere xis xless xsurface
xarea xleft xunchecked.
C Caries xis xmost x likely xto xoccur x in xpits xand x fissures xon xthe x occlusal x surface
xand xon x interproximal x tooth xsurfaces x where xplaque xaccumulates
x unchecked.
D Caries xis xmost x likely xto xoccur x in xpits xand x fissures xon xthe x occlusal x surface
xand xon x interproximal x tooth xsurfaces x where xplaque xaccumulates
, x unchecked.
E Caries xis xmost x likely xto xoccur x in xpits xand x fissures xon xthe x occlusal x surface
xand xon x interproximal x tooth xsurfaces x where xplaque xaccumulates
x unchecked.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, x GC, x III, x B, x 1, x Describe x how xto x prepare, x mix, x deliver, x and x store x restorative
x materials, xincluding x but x not x limited x to x a. x amalgam, x c. x composites
MSC: x x NBDHE, x 6.0 x Providing x Supportive x Treatment x Services, x 6.5 x General
3. Which x of x the x following x is x an x intracoronal x restoration?
a. Ceramic–alloy x crown x on x tooth x number x 21
b. Ceramic x veneer x on x tooth x number x 8
c. Ceramic x onlay x on x tooth x number x 30
d. Ceramic x inlay x on x tooth x number x 14
ANS: D
Feedback
A The xalternate xchoices xare xall xextracoronal xrestorations xused xto xrepair xthe
xexternal.
B The x alternate x choices x are x all x extracoronal x restorations x used x to x repair x the
external.
C The xalternate xchoices xare xall xextracoronal xrestorations xused xto xrepair xthe
xexternal.
D A xceramic xinlay xon xtooth xnumber x14 xis xan xexample xof xan xintracoronal
x restoration, xmeaning xthat xthe xrestoration xis xbeing xused xto xrepair xdamage
x restricted x to x the x internal x parts x of x a x tooth. x Materials x such x as x amalgam
x and xcomposite x resin x are x used x in x addition x to x ceramic x or x cast x metal.
DIF: Knowledge REF: p. 4 OBJ: 3
TOP: CDA, x GC, x III, x B, x 1, x Describe x how xto x prepare, x mix, x deliver, x and x store x restorative
x materials, xincluding x but x not x limited x to x a. x amalgam, x c. x composites
MSC: x x NBDHE, x 6.0 x Providing x Supportive x Treatment x Services, x 6.5 x General
4. What x is x the x process x called x where xdecay x is x removed x from x the x tooth x in x order
x for x a xrestoration xto xbe xplaced?
a. Cavity x preparation
b. Convenience x form
c. Margination
d. Extension
ANS: A
Feedback
A The xprocess xis xreferred xto xas xcavity xpreparation. xCavity xpreparation xis xused
x to xremove xdiseased xor xdamaged xtissue xand xprovide xa xspace xaccessible xfor
xrestoration x and x one x that x can x stably x retain x the x restoration.
B Convenience x form x is x a x term x describing x the x nature x of x the x cavity x preparation.
, C Extension x is x a x term x describing x the x nature x of x the x cavity x preparation.
D Margination x is x the x procedure x for x finishing x the x margins x of x a x restoration.
DIF: Knowledge REF: p. 4 OBJ: 2
