Biomaterials in Dentistry Exam Bank
Course Introduction
This course explores the fundamental principles and applications of biomaterials used in dentistry, focusing on the selection, properties, and biological interactions of dental materials. Students will study the composition, structure, and performance of metals, ceramics, polymers, and composites as they pertain to restorative, prosthetic, and preventive dental procedures. Emphasis is placed on biocompatibility, material processing, advances in dental materials technology, regulatory considerations, and the impact of emergent materials on clinical practice. Through lectures and practical case studies, students will gain a comprehensive understanding of the role biomaterials play in improving oral health and developing innovative dental solutions.
Recommended Textbook
Dental Materials 3rd Edition by W. Stephan
Eakle DDS FADM
Available Study Resources on Quizplus
19 Chapters
643 Verified Questions
643 Flashcards
Source URL: https://quizplus.com/study-set/1241 Page 2
Chapter 1: Introduction to Dental Materials
Available Study Resources on Quizplus for this Chatper
20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/24493
Sample Questions
Q1) Since 2005,the American Dental Association (ADA)Seal of Acceptance is awarded to _____ products.
A) both professional and consumer
B) professional but not consumer
C) consumer but not professional
D) neither professional nor consumer
Answer: C
Q2) According to the earliest historical mention,in which location was fluoride first used?
A) China
B) Prussia
C) England
D) Colorado Springs
Answer: C
Q3) What is Dr.Frederick McKay credited with?
A) Developing an acceptable formula for silver dental amalgam
B) Noting dental fluorosis in Colorado Springs
C) Demonstrating a casting method to produce gold inlays
D) The introduction of dental cements
Answer: B
To view all questions and flashcards with answers, click on the resource link above.
Page 3
Chapter 2: Oral Environment and Patient Considerations
Available Study Resources on Quizplus for this Chatper
43 Verified Questions
43 Flashcards
Source URL: https://quizplus.com/quiz/24494
Sample Questions
Q1) Which term describes the thicker or thinner a material is?
A) Density
B) Viscosity
C) Flowability
D) Thixotropic
Answer: D
Q2) When an object cannot resist force,_____ occurs.
A) deformation
B) distortion
C) deformation and distortion
Answer: C
Q3) Contact between two dissimilar metals in the mouth may result in what reaction?
A) Galvanic shock
B) Metallic taste
C) Electrical current
D) All of the above are possible.
Answer: D
To view all questions and flashcards with answers, click on the resource link above.
Page 4
Chapter 3: Physical and Mechanical Properties of Dental Materials
Available Study Resources on Quizplus for this Chatper
36 Verified Questions
36 Flashcards
Source URL: https://quizplus.com/quiz/24495
Sample Questions
Q1) Which of the following would be considered an indirect placement restorative material?
A) Gold
B) Gold foil
C) Amalgam
D) Composite resin
Answer: A
Q2) Stiffness
A)Resistance to deformation
B)The greatest stress a structure can withstand without permanent deformation
C)The resistance of a solid to penetration
D)The maximum amount of stress a material can withstand without breaking
E)The ability of a material to resist fracture
Answer: A
Q3) What will happen if expired materials or improperly stored materials are used?
A) Render the material ineffective
B) Be of little consequence
C) Cause a toxic reaction
Answer: A
To view all questions and flashcards with answers, click on the resource link above. Page 5
Chapter 4: General Handling and Safety of Dental Materials
in the Dental Office
Available Study Resources on Quizplus for this Chatper
37 Verified Questions
37 Flashcards
Source URL: https://quizplus.com/quiz/24496
Sample Questions
Q1) Chemical-resistant gloves are necessary when working with chemicals.Of the following,which would be chemical resistant?
A) Vinyl
B) Latex
C) Nitrile
Q2) The chemical training program for employees must include which of the following?
1)The use of hazardous chemicals
2)Methods of production of chemicals
3)All safety practices,including all warnings
4)Required personal protection devices
5)Safe handling and disposal methods
A) 1,2,3,4,5
B) 1,2,3,4
C) 1,3,4,5
D) 1,3,4
Q3) Exposure to chemicals over a prolonged period of time is _____ exposure.
A) chronic
B) acute
C) latent
To view all questions and flashcards with answers, click on the resource link above. Page 6
Q4) What are the four components of the chemical training program for employees?
Chapter 5: Principles of Bonding
Available Study Resources on Quizplus for this Chatper
34 Verified Questions
34 Flashcards
Source URL: https://quizplus.com/quiz/24497
Sample Questions
Q1) The clinical technique of post cementation involves thoroughly rinsing off the phosphoric acid used to etch the canal and removing excess water with a:
A) paper point.
B) cotton pellet.
C) composite application brush.
D) 3-cc syringe with a blunt-end cannula.
Q2) Which etch or tooth conditioner is used when seating or repairing ceramic restorations?
A) Acetic acid
B) Phosphoric acid
C) Hydrochloric acid
D) Hydrofluoric acid
Q3) When a resin bonding agent hardens,it creates projections that lock into the tooth,creating a _____ bond.The resin bonding agent will then form a _____ bond to other resins placed over it,such as composite resin.
A) chemical;chemical
B) chemical;mechanical
C) mechanical;chemical
D) mechanical;mechanical
To view all questions and flashcards with answers, click on the resource link above. Page 7
Chapter 6: Composites, glass Ionomers, and Compomers
Available Study Resources on Quizplus for this Chatper
37 Verified Questions
37 Flashcards
Source URL: https://quizplus.com/quiz/24498
Sample Questions
Q1) Macrofilled composite
A)A light-cured,low-viscosity composite resin that contains fewer filler particles
B)An early generation of composite that contained filler particles ranging from 10 to 100 mm in diameter
C)A composite that contains all nano-sized fillers to enhance physical properties
D)A composite that contains both macrofill and microfill particles
E)A composite that contains very small filler particles averaging 0.04 mm in diameter
Q2) Which part of the tooth is generally closest to the dentin in color?
A) Body
B) Cervical
C) Incisal area of anterior teeth
D) Occlusal area of posterior teeth
Q3) Which of the following materials is fluoride releasing?
A) Porcelain
B) Glass ionomer
C) Composite resin
Q4) List the advantages and disadvantages of glass ionomer cements.
To view all questions and flashcards with answers, click on the resource link above.
8
Chapter 7: Preventive and Desensitizing Materials
Available Study Resources on Quizplus for this Chatper
38 Verified Questions
38 Flashcards
Source URL: https://quizplus.com/quiz/24499
Sample Questions
Q1) What should be done if a child has consumed an excessive amount of fluoride?
Q2) The accepted optimal level of fluoride in the drinking water is in the range of ____ mg/L or parts per million.
A) 0.01 to 0.07
B) 0.07 to 0.12
C) 0.12 to 0.7
D) 0.7 to 1.2
Q3) Which of the following is true of the oxygen-inhibited layer on cured dental sealant?
A) It is the most thoroughly cured portion because it is closest to the curing light.
B) It occurs because the set of the resin at its surface is inhibited by contact with oxygen in the air.
C) It contains bisphenol,an estrogen-like chemical associated with precocious puberty.
D) It allows the clinician to see and detect the presence of the sealant.
Q4) The use of a bonding agent with pit and fissure sealants _____ their longevity.
A) decreases
B) increases
C) has no effect on
To view all questions and flashcards with answers, click on the resource link above. Page 9
Chapter 8: Teeth Whitening Materials and Procedures
Available Study Resources on Quizplus for this Chatper
24 Verified Questions
24 Flashcards
Source URL: https://quizplus.com/quiz/24500
Sample Questions
Q1) Which of the following statements is true regarding home bleaching prescribed by the dentist?
A) The material consists of clear,flexible strips containing a peroxide gel that are adapted over the teeth and worn for 30 minutes at a time once or twice a day.
B) Only the anterior six teeth are covered.
C) The gel is placed in a custom-formed soft,thin plastic tray and is worn by the patient for periods as short as 30 minutes twice daily or as long as overnight.
D) The home bleaching process is less effective than the in-office process.
Q2) This is the active ingredient in power-whitening products used in the dental office.
A)Extrinsic stains
B)Intrinsic stains
C)Hydrogen peroxide
D)Carbamide peroxide
E)Hydrochloric acid
Q3) What is the role of the dental assistant or dental hygienist in the delivery of whitening services for the patient?
To view all questions and flashcards with answers, click on the resource link above. Page 10
Chapter 9: Dental Ceramics
Available Study Resources on Quizplus for this Chatper
36 Verified Questions
36 Flashcards
Source URL: https://quizplus.com/quiz/24501
Sample Questions
Q1) A lighter color
A)Long wavelength
B)Short wavelength
C)High value
D)Low value
E)High chroma
Q2) Violet color
A)Long wavelength
B)Short wavelength
C)High value
D)Low value
E)High chroma
Q3) A darker color
A)Long wavelength
B)Short wavelength
C)High value
D)Low value
E)High chroma
Q4) Describe the different techniques for fabrication of ceramic restorations.
To view all questions and flashcards with answers, click on the resource link above. Page 11
Chapter 10: Dental Amalgam
Available Study Resources on Quizplus for this Chatper
39 Verified Questions
39 Flashcards
Source URL: https://quizplus.com/quiz/24502
Sample Questions
Q1) Patients should be advised to avoid chewing on a newly placed amalgam for at least:
A) 8 minutes.
B) 8 hours.
C) 2 days.
D) 2 weeks.
Q2) Which of the following is true concerning mercury safety procedures in the dental office?
A) A "mercury-free" amalgam is available for use in the United States.
B) The elemental mercury used in amalgam is more toxic than organic mercury.
C) Dental offices contribute an insignificant amount of mercury to the environment.
D) Studies have shown mercury levels in most dental offices to be far below OSHA's recommended minimum.
Q3) Which of the following would not be hygienic when amalgam material is used?
A) The floor is carpeted.
B) The rubber dam is placed.
C) The assistant uses the HVE.
D) Staff wears PPE when handling.
Q4) List the advantages and disadvantages of amalgam.
To view all questions and flashcards with answers, click on the resource link above. Page 12
Chapter 11: Casting Metals, solders, and Wrought Metal
Alloys
Available Study Resources on Quizplus for this Chatper
35 Verified Questions
35 Flashcards
Source URL: https://quizplus.com/quiz/24503
Sample Questions
Q1) Identify the wrought metals used for orthodontic wires.
Q2) Which of the following is the most esthetic margin for a ceramic-metal crown?
A) Disappearing metal margin
B) Porcelain facial margin
C) All-metal margin
D) All-metal facing
Q3) Which of the following is true concerning the use of endodontic files and reamers in dentistry?
A) Rotary instruments are usually composed of stainless steel alloys.
B) Nickel-titanium files are far more flexible than stainless steel files.
C) Stainless steel files become more flexible as the diameter of the file increases.
D) Reamers are similar to files except that they have more twists in the metal and cut faster.
Q4) How is the arch wire held to the orthodontic bracket?
A) Cement
B) Magnets
C) Capillary adhesion
D) Ligature wire or elastics
Page 13
To view all questions and flashcards with answers, click on the resource link above.
Chapter 12: Dental Implants
Available Study Resources on Quizplus for this Chatper
27 Verified Questions
27 Flashcards
Source URL: https://quizplus.com/quiz/24504
Sample Questions
Q1) The success rate of dental implants is more than _____% with careful case selection.
A) 50
B) 70
C) 90
D) 99
Q2) How often should oral hygiene for implant patients be monitored?
A) Every 3 to 4 months
B) Every 6 months
C) Annually
D) At each visit
Q3) The _____ implant is the most commonly used in dentistry today.
A) supraperiosteal
B) subperiosteal
C) transosteal
D) endosseous
Q4) What is the most common type of implant used today?
A) Endosseous
B) Subperiosteal
C) Transosteal
To view all questions and flashcards with answers, click on the resource link above. Page 14
Chapter 13: Abrasion, finishing, and Polishing
Available Study Resources on Quizplus for this Chatper
37 Verified Questions
37 Flashcards
Source URL: https://quizplus.com/quiz/24505
Sample Questions
Q1) Which statement best describes rubber cup polishing?
A) Helps strengthen decalcified enamel
B) Removes some of the fluoride-rich layer of enamel
C) Is used to remove small bits of calculus after scaling
D) Should be used on every patient at his or her recall
Q2) The benefits of a properly finished and polished restoration/prosthesis include _____ biofilm retention and _____ resistance to tarnish and corrosion.
A) increased;increased B) increased;decreased C) decreased;increased D) decreased;decreased
Q3) Air polishing utilizes a combination of _____,air,and water at a pressure of approximately 40 psi as an effective and efficient means of removing stains and soft deposits from enamel surfaces.
A) sodium hypochlorite
B) aluminum oxide
C) sodium bicarbonate
D) dilute acids
Q4) Define finishing,polishing,and cleansing.
To view all questions and flashcards with answers, click on the resource link above. Page 15
Chapter 14: Dental Cement
Available Study Resources on Quizplus for this Chatper
36 Verified Questions
36 Flashcards
Source URL: https://quizplus.com/quiz/24506
Sample Questions
Q1) What is an advantage of a resin-based cement?
A) Is water soluble
B) Bonds with dentin
C) Has a high viscosity
D) Won't cause sensitivity
Q2) By placing a ______ provisional restoration,the dentist is able to evaluate the response of the pulp before the reappointment for a permanent restoration.
A) varnish
B) luting
C) buildup
D) sedative
Q3) Which of the following would not be a reason to place a high-strength base?
A) Promote reparative dentin
B) Decrease thermal sensitivity
C) Increase mechanical support
D) It's condensable
Q4) List the advantages and disadvantages of zinc oxide eugenol,zinc phosphate,zinc polycarboxylate,traditional glass ionomer,hybrid ionomer,and resin-based cements.
To view all questions and flashcards with answers, click on the resource link above. Page 16
Chapter 15: Impression Materials
Available Study Resources on Quizplus for this Chatper
36 Verified Questions
36 Flashcards
Source URL: https://quizplus.com/quiz/24507
Sample Questions
Q1) What is occurring when an alginate impression appears to sweat,showing droplets on the surface?
A) Syneresis
B) Hysteresis
C) Imbibition
D) Dehydration
Q2) Which characteristic should be considered when choosing an impression tray?
A) Be large enough to fit all oral structures
B) Be rigid to support the impression material
C) Accurately reproduce vestibules
D) All of the above are considered.
Q3) Which statement is true about impression trays?
A) The triple tray is a custom full-arch tray used for bite registration.
B) Stock trays are made of plastic rather than metal and can be solid or perforated.
C) Plastic trays are inexpensive and disposable,whereas metal trays are more expensive and must be cleaned and sterilized between uses.
D) Custom trays are constructed in the patient's mouth with chemically cured,light-cured,or thermoplastic resins on casts of the teeth.
To view all questions and flashcards with answers, click on the resource link above.
17
Chapter 16: Gypsum and Wax Products
Available Study Resources on Quizplus for this Chatper
37 Verified Questions
37 Flashcards
Source URL: https://quizplus.com/quiz/24508
Sample Questions
Q1) Dies
A)Replicas of the prepared teeth that are generally removable from the working cast
B)Hard replicas of hard and soft tissues of the patient's oral cavity made from gypsum products
C)Casts generally made from dental plaster or stone and used for patient education,treatment planning,and tracking of the progress of treatment
Q2) Which of the following represents the correct sequence for creation of a casting using the lost wax technique?
1)The pattern and sprue are encased in an investment ring.
2)A wax or plastic sprue is attached to the pattern.
3)A wax pattern of the restoration is carved on the die.
4)The enclosed pattern and sprue are heated in a burnout oven at high temperatures.
A) 3,1,2,4
B) 3,2,1,4
C) 2,3,1,4
D) 3,2,4,1
To view all questions and flashcards with answers, click on the resource link above.
18
Chapter 17: Polymers for Prosthetic Dentistry
Available Study Resources on Quizplus for this Chatper
37 Verified Questions
37 Flashcards
Source URL: https://quizplus.com/quiz/24509
Sample Questions
Q1) Polymerization of chemical-cured acrylic resins is set into action when the tertiary amine in the liquid activates the _____ in the powder to produce free radicals.
A) plasticizers
B) hydroquinone
C) benzoyl peroxide
D) glycol dimethacrylate
Q2) Describe the process of addition polymerization.
Q3) Which of the following correctly represents the stages seen when acrylic powder and liquid are mixed together?
A) Dough,sandy,rubber,and stringy
B) Stringy,sandy,dough,and rubber
C) Sandy,stringy,dough,and rubber
D) Rubber,stringy,dough,and sandy
Q4) Which of the following is true about polymers?
A) They are large,long-chain molecules.
B) They are small,long-chain molecules.
C) They are large,short-chain molecules.
D) They are small,short-chain molecules.
Q5) Describe how a denture is fabricated using heat-cured resin.
To view all questions and flashcards with answers, click on the resource link above. Page 19
Chapter 18: Provisional Restorations
Available Study Resources on Quizplus for this Chatper
36 Verified Questions
36 Flashcards
Source URL: https://quizplus.com/quiz/24510
Sample Questions
Q1) _____ generated during the polymerization of chemical-cured acrylic can potentially damage the pulp or burn soft tissues.
A) Heat
B) Off-gassing
C) Chemical by-products
D) Hydroquinone
Q2) Which of the following is true concerning patient education for provisional coverage?
A) Provisional coverage provides the same results as permanent coverage.
B) The patient need not call the office if the provisional is dislodged or lost.
C) No increase in temperature sensitivity is associated with the provisional material.
D) Limitations in esthetics may include imperfections in color matching,anatomic contour,and smoothness.
Q3) What is the most common use of a stainless steel crown?
A) Crown prep on an adult molar
B) Crown prep on a primary molar
C) Crown prep on an anterior tooth
D) Bridge prep in the adult posterior teeth
Q4) List and describe the four criteria for provisional coverage.
To view all questions and flashcards with answers, click on the resource link above. Page 20
Chapter 19: Preventive and Corrective Oral Appliances
Available Study Resources on Quizplus for this Chatper
18 Verified Questions
18 Flashcards
Source URL: https://quizplus.com/quiz/24511
Sample Questions
Q1) What is a common treatment for people with severe OSA?
A) Weight loss
B) Use of a CPAP
C) Reduced alcohol intake
D) Use of nasal decongestants
Q2) Hard acrylic guards are usually fabricated in the dental _____ and usually require _____ time to adjust than guards made from soft thermoplastic sheets.
A) office;more
B) office;less
C) laboratory;more
D) laboratory;less
Q3) A sports guard thickness of about _____ mm is desirable for heavy contact sports in which injuries are more likely.
A) 1
B) 2
C) 4
D) 8
Q4) What instructions would be given to a patient who receives a soft sports or bruxism guard?
To view all questions and flashcards with answers, click on the resource link above. Page 21