EFDA I Composite (Ch 9) Exam
Questions & Answers (Grade A+)
Esthetic restorative materials are used to: -
correct answer ✅1. replace lost tooth structure
2. restore the form and function of the tooth
3. provide a closely matched color of natural tooth
4. mask discolored or mottled teeth
5. reshape teeth
Before composites were available for use, what other choices in
dental materials did the dentist have? -
correct answer ✅1. Porcelain
2. Silicate Cements
3. Unfilled Acrylic Resin
first tooth colored dental restorative material, expensive, showed a
cement line (molded into the cavity prep, baked in oven, cemented
into prep) -
correct answer ✅Porcelain
esthetic by old standards, powder contained silicate aluminum glass
that released fluoride, liquid contained phosphoric acid, relatively
opaque, rough, poor resistance to compressive force, soluble -
correct answer ✅Silicate Cements
, EFDA I Composite (Ch 9) Exam
Questions & Answers (Grade A+)
organic plastic material similar to denture bases and teeth, formed
by a reaction of polymer and monomer, easy to place/smooth,
esthetic, resists fractures, expands and contracts, wears away
easily, poor color stability, monomer can affect the pulp -
correct answer ✅Unfilled Acrylic Resin
Name one advantage to unfilled acrylic resin. -
correct answer ✅easy to place and smooth
Name one disadvantage to unfilled acrylic resin. -
correct answer ✅wears away easily
aka filled resin, most popular tooth colored material since 1960,
matrix is made of bisphenol a and glycidyl methacrylate (BIS GMA) -
correct answer ✅Composite
Composite resins are an _______ resin matrix that contains
________ _______ -
correct answer ✅Organic, Inorganic Fillers
Questions & Answers (Grade A+)
Esthetic restorative materials are used to: -
correct answer ✅1. replace lost tooth structure
2. restore the form and function of the tooth
3. provide a closely matched color of natural tooth
4. mask discolored or mottled teeth
5. reshape teeth
Before composites were available for use, what other choices in
dental materials did the dentist have? -
correct answer ✅1. Porcelain
2. Silicate Cements
3. Unfilled Acrylic Resin
first tooth colored dental restorative material, expensive, showed a
cement line (molded into the cavity prep, baked in oven, cemented
into prep) -
correct answer ✅Porcelain
esthetic by old standards, powder contained silicate aluminum glass
that released fluoride, liquid contained phosphoric acid, relatively
opaque, rough, poor resistance to compressive force, soluble -
correct answer ✅Silicate Cements
, EFDA I Composite (Ch 9) Exam
Questions & Answers (Grade A+)
organic plastic material similar to denture bases and teeth, formed
by a reaction of polymer and monomer, easy to place/smooth,
esthetic, resists fractures, expands and contracts, wears away
easily, poor color stability, monomer can affect the pulp -
correct answer ✅Unfilled Acrylic Resin
Name one advantage to unfilled acrylic resin. -
correct answer ✅easy to place and smooth
Name one disadvantage to unfilled acrylic resin. -
correct answer ✅wears away easily
aka filled resin, most popular tooth colored material since 1960,
matrix is made of bisphenol a and glycidyl methacrylate (BIS GMA) -
correct answer ✅Composite
Composite resins are an _______ resin matrix that contains
________ _______ -
correct answer ✅Organic, Inorganic Fillers
