Prosthodontics Practice Exam
Course Introduction
Prosthodontics is a specialized field of dentistry focused on the diagnosis, treatment planning, rehabilitation, and maintenance of oral function, comfort, and appearance for patients with missing or deficient teeth and/or oral and maxillofacial tissues. This course introduces students to the principles and techniques associated with fixed and removable prostheses, including crowns, bridges, complete and partial dentures, and implant-supported restorations. Emphasis is placed on patient assessment, material selection, impression techniques, occlusal concepts, and the multidisciplinary approach required to restore optimal oral health and aesthetics. Throughout the course, students gain both theoretical knowledge and hands-on experience in fabricating, fitting, and adjusting prosthetic devices, preparing them for clinical practice in restorative dentistry.
Recommended Textbook
Dental Materials 3rd Edition by W.
Stephan Eakle DDS FADM
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19 Chapters
643 Verified Questions
643 Flashcards
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Chapter 1: Introduction to Dental Materials
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Sample Questions
Q1) Silver paste was first mentioned as a restorative material for teeth by the:
A) Chinese.
B) Greeks.
C) Romans.
D) French.
Answer: A
Q2) Seal of Acceptance
A)Food and Drug Administration
B)American Dental Association
C)International Standards Organization
Answer: B
Q3) According to the earliest historical mention,in which location was fluoride first used?
A) China
B) Prussia
C) England
D) Colorado Springs
Answer: C
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Page 3
Chapter 2: Oral Environment and Patient Considerations
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43 Flashcards
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Sample Questions
Q1) Which term describes the thicker or thinner a material is?
A) Density
B) Viscosity
C) Flowability
D) Thixotropic
Answer: D
Q2) What causes microleakage?
A) A poorly placed restoration
B) A fracture within a restoration
C) Expansion and contraction of a restoration
D) All of the above could cause microleakage.
Answer: D
Q3) Which of the following is not a good conductor of temperature?
A) Gold crown
B) Amalgam restoration
C) Composite resin restoration
Answer: C
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Chapter 3: Physical and Mechanical Properties of Dental Materials
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Sample Questions
Q1) The stability of a solid is evaluated by noting:
A) its atomic mass and number.
B) whether or not it is a compound.
C) how hard the material is when set.
D) whether the molecules are arranged uniformly.
Answer: D
Q2) Initial set time
A)Begins when the material can no longer be manipulated in the mouth
B)When the material has reached its ultimate state
C)The amount of time the auxiliary has to bring the components together into a homogenous mix
D)The time permitted to manipulate the material within the mouth
Answer: A
Q3) Final set time
A)Begins when the material can no longer be manipulated in the mouth
B)When the material has reached its ultimate state
C)The amount of time the auxiliary has to bring the components together into a homogenous mix
D)The time permitted to manipulate the material within the mouth
Answer: B
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Chapter 4: General Handling and Safety of Dental Materials
in the Dental Office
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Sample Questions
Q1) If a staff member is splashed in the face with a caustic chemical and some goes into the eye,what should he or she do?
A) Flush eyes at the eye wash station.
B) Wash eyes with soap and water.
C) Wipe eyes with a damp cloth.
D) Shower immediately.
Q2) What would a mercury spill kit include?
A) 2 × 2 gauze
B) Vinyl gloves
C) A special brush
D) Absorbent powder
Q3) Which of the following is a symptom of acute chemical toxicity?
A) Cancer
B) Neurologic defects
C) Nausea
D) Infertility
Q4) Exposure to chemicals over a prolonged period of time is _____ exposure.
A) chronic
B) acute
C) latent
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Chapter 5: Principles of Bonding
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Sample Questions
Q1) Which of the following materials would not be used when placing a direct resin restoration?
A) Bond
B) Etch
C) Cement
D) Curing light
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) What is the wavelength of the curing light?
A) Blue
B) Ultraviolet
C) Incandescent
D) Fluorescent
Q4) What are the three modes of curing for resin bonding agents?
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Chapter 6: Composites, glass Ionomers, and Compomers
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Sample Questions
Q1) Which of the following is a direct-placement esthetic material?
A) Composite resin
B) Silver amalgam
C) Porcelain inlay
D) Full gold crown
Q2) Nanohybrids have a particle size of _____ microns (mm).
A) 0.1 to 0.4
B) 310 to 100
C) 0.03 to 0.5
D) 0.005 to 0.020
Q3) What is the best way to take a patient's color/shade?
A) Using a shade guide
B) Moistening the teeth
C) Curing a small quantity to enamel
D) All are good choices.
Q4) Some composite resin materials give off heat when cured.What is this called?
A) Chemical reaction
B) Exothermic reaction
C) Thermal conductivity
D) None of the above
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Chapter 7: Preventive and Desensitizing Materials
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Sample Questions
Q1) The use of a bonding agent with pit and fissure sealants _____ their longevity.
A) decreases
B) increases
C) has no effect on
Q2) What is the wet,uncured surface of a cured composite resin called?
A) Biofilm
B) Hybrid layer
C) Surface layer
D) Oxygen-inhibited layer
Q3) Which information regarding the sealant procedure does not need to be documented in the patient's chart?
A) Etch time
B) Type of material
C) Type of isolation
D) Tooth number and surface
Q4) What should be done if a child has consumed an excessive amount of fluoride?
Q5) Which factor would contraindicate dental sealants?
A) Deep,uncoalesced grooves
B) Shallow,well-coalesced grooves
C) Adult patients with high caries risk
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Chapter 8: Teeth Whitening Materials and Procedures
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Sample Questions
Q1) These stains are caused by medications or developmental disturbances in the developing tooth bud.
A)Extrinsic stains
B)Intrinsic stains
C)Hydrogen peroxide
D)Carbamide peroxide
E)Hydrochloric acid
Q2) Why should a leaking restoration be replaced before the bleaching process is started?
A) Ensure a correct shade match
B) Prevent a line of black stain around the restorations
C) Be certain that restorative needs are treated before esthetic needs
D) Prevent excessive penetration of bleach through dentinal tubules that might irritate the pulp and cause sensitivity
Q3) What is the best way to protect oral tissues during a power-whitening appointment?
A) Isolight
B) Dry angles
C) Cotton rolls
D) Rubber dam
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Page 10
Chapter 9: Dental Ceramics
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Sample Questions
Q1) What is the primary cause of porcelain failure?
A) Occlusal loading
B) Firing defects
C) Oral habits
D) Poor diet
Q2) Silane is a coupling agent that may be added to the _____ surface to enhance the bond and form a chemical union between the porcelain and the resin cement.
A) etched porcelain
B) unetched porcelain
C) etched resin cement
D) unetched resin cement
Q3) Which of the following is a key advantage of low-fusing porcelains?
A) They have an opaque layer.
B) They are much stronger.
C) They appear opalescent.
D) They are less abrasive.
Q4) Describe the different techniques for fabrication of ceramic restorations.
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Chapter 10: Dental Amalgam
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Sample Questions
Q1) Polishing of amalgam restorations should be:
A) dry with a light touch.
B) wet with a light touch.
C) dry with heavy pressure.
D) wet with heavy pressure.
Q2) When the silver-based alloy used to create dental amalgam is mixed with _____,the reaction that occurs is called amalgamation.
A) methyl methacrylate
B) a bonding agent
C) an acid etchant
D) mercury
Q3) Describe the different particle shapes in amalgam alloys.
Q4) Phase with the least corrosion
A)Gamma phase ( )
B)Gamma-1 phase ( 1)
C)Gamma-2 phase ( 2)
Q5) Phase that is weak and corrodes easily
A)Gamma phase ( )
B)Gamma-1 phase ( 1)
C)Gamma-2 phase ( 2)
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Chapter 11: Casting Metals, solders, and Wrought Metal
Alloys
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Sample Questions
Q1) Identify the wrought metals used for orthodontic wires.
Q2) High-noble alloy
A)Alloy composed of non-noble metals
B)A mixture of two or more metals
C)Alloy containing at least 60% noble metals,40% of which must be gold
D)Classification of metal based on its high cost
E)Alloy composed of metals that do not corrode readily
Q3) Which of the following is true of the preparation of the metal substructure for porcelain-bonded-to-metal crowns?
A) The metal substructure should have sharp angles.
B) The metal substructure must be concave in shape.
C) The metal substructure must be at least 1.5 mm thick.
D) To make room for the metal substructure and porcelain,these crowns require greater reduction of the tooth than all-metal crowns.
Q4) Why is tin added to solders used in dentistry?
A) Improve flow
B) Reduce oxidation
C) Strengthen the bond
D) Lower the melting point
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Chapter 12: Dental Implants
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Sample Questions
Q1) Why is titanium used for implants?
A) Is lightweight
B) Does not corrode
C) Is biocompatible
D) All of the above
Q2) Xenografts
A)Grafts harvested from the patient's body
B)Grafts harvested from a cadaver
C)Grafts obtained from animals
D)Grafts made from inert,synthetic materials
Q3) Why are endosseous implants more successful in the mandible than in the maxilla?
A) Blood flow is better in the mandible.
B) Gravity drags maxillary implants from their sockets.
C) The bone in the mandible is generally much denser than in the maxilla.
D) There is a greater lateral component of force on maxillary teeth than on mandibular teeth.
Q4) List and describe the different types of surgical procedures for placement of implants.
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Chapter 13: Abrasion, finishing, and Polishing
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Sample Questions
Q1) How are dental abrasives supplied?
A) Paste
B) Loose
C) Coated
D) All of the above
Q2) 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
Q3) Pumice
A)An extremely fine abrasive used extensively as a final polishing agent for enamel and restorations
B)A natural abrasive composed of quartz and silica
C)Volcanic silica manufactured as a loose abrasive
D)A synthetic material that produces an extremely hard and efficient abrasive material
E)A synthetic abrasive;the powder form is used in sandblasting restorations in preparation for cementation
Q4) Define finishing,polishing,and cleansing.
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Chapter 14: Dental Cement
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Sample Questions
Q1) When is zinc polycarboxylate cement no longer usable?
A) Has a creamy appearance
B) Loses its gloss and becomes stringy
C) Is mixed for longer than 10 seconds
D) Becomes oily on the surface because of the oxygen-inhibited layer
Q2) Try-in paste is used to:
A) tack the restoration in place to check the shade of the final product.
B) bond orthodontic brackets.
C) verify proper seating of crowns.
D) cement posts before restorative treatment.
Q3) Expansion of ______ cement as it absorbs moisture after setting is a concern,making the cement less desirable for cementation of all-ceramic indirect restorations because of the risk of fracture.
A) glass ionomer
B) zinc phosphate
C) zinc polycarboxylate
D) resin-modified glass ionomer
Q4) List the advantages and disadvantages of zinc oxide eugenol,zinc phosphate,zinc polycarboxylate,traditional glass ionomer,hybrid ionomer,and resin-based cements.
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Chapter 15: Impression Materials
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Sample Questions
Q1) Irreversible hydrocolloid
A)An alginate impression material that is mixed to a sol state and as it sets converts to a gel by a chemical reaction that irreversibly changes its nature
B)Gluelike material composed of two or more substances in which one substance does not go into solution but is suspended within another substance
C)An agar impression material that can be heated to change from a gel into a fluid state that can flow around the teeth
D)A water-based colloid used as an elastic impression material
E)A versatile irreversible hydrocolloid that is the most used impression material in the dental office
Q2) Which statement is correct regarding alginate hydrocolloid?
A) Fast-set alginate has a working time of 2 to 3 minutes.
B) Some moisture will be lost from the impression even in 100% humidity.
C) Alginate hydrocolloid should be removed slowly to prevent deformation of critical surfaces.
D) Adjusting the powder-to-water ratio is the best way to lengthen or shorten the setting time.
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Page 17
Chapter 16: Gypsum and Wax Products
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Sample Questions
Q1) What does it mean when freshly mixed gypsum loses its gloss?
A) Beginning of the working time
B) Final compressive strength
C) Initial set
D) Final set
Q2) List and describe the use of the different types of gypsum products used in dentistry.
Q3) 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
Q4) -Hemihydrate is commonly used for:
A) die stone.
B) working casts.
C) diagnostic models.
D) dental investment.
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Chapter 17: Polymers for Prosthetic Dentistry
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Sample Questions
Q1) Home care of dentures would not include which of the following?
A) Soaking in mouthwash to remove odors
B) Brushing with a denture brush after meals
C) Using a denture toothpaste to remove plaque
D) Soaking in white vinegar to remove calculus
Q2) The most common form of polymerization in dentistry is:
A) tertiary.
B) addition.
C) propagation.
D) condensation.
Q3) Which of the following laboratory devices helps keep the monomer from evaporating during polymerization and creates a denser acrylic?
A) Lathe
B) Pressure pot
C) Bunsen burner
D) Vacuum-forming machine
Q4) Describe how a denture is fabricated using heat-cured resin.
Q5) Describe the process of addition polymerization.
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Chapter 18: Provisional Restorations
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Sample Questions
Q1) Which of the following would not make a good extracoronal provisional restoration?
A) Polycarbonate crown
B) Aluminum shell
C) Stainless steel crown
D) Zinc oxide eugenol cement
Q2) Which of the following would not be a necessary function of a posterior provisional restoration?
A) Esthetics
B) Reduced sensitivity
C) Maintaining occlusion
D) Eliminating migration
Q3) Which of the following is the most durable of the preformed crowns?
A) Polycarbonate crown
B) Stainless steel crown
C) Aluminum shell crown
D) Celluloid crown form lined with acrylic or composite materials
Q4) List and describe the four criteria for provisional coverage.
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Chapter 19: Preventive and Corrective Oral Appliances
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Sample Questions
Q1) A hard or pliable material that protects teeth from trauma during sporting activities or from grinding of the teeth
A)Mouth guard
B)Obstructive sleep apnea
C)Space maintainer
D)Orthodontic tooth aligners
Q2) Which type of tooth aligner would be used for minor tooth movement?
A) Space maintainer
B) Acrylic bite guard
C) Thermoplastic guard worn at night
D) Removable acrylic base with embedded wires
Q3) What is a risk factor for obstructive sleep apnea (OSA)?
A) Obesity
B) Large neck
C) High blood pressure
D) All of the above
Q4) What instructions would be given to a patient who receives a soft sports or bruxism guard?
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