The surgical procedure for placing implants just not injure the bone. Overheating the bone prevents osseointegration of the implant.
Recommended temperatures are not to exceed:
A
. 98.6 F
B
. 47 F
C
. 117 C
D
. 117 F
D
. 117F
The temperature must not be greater than 117 F or 47 degree C
All of the following conditions are contraindications for implant placement except:
A
. Recurrent caries
B
. Poor oral hygiene
C
. Diabetes
D
. Smoking
A
. Recurrent caries
A restoration is inserted into the peritoneum of the bone. Caries only occurs on teeth. On an implant, the damage would be because of mechanical forces or natural wear.
Poor oral hygiene, smoking, and diabetes could all harm the perio
Titanium is very difficult to cast. It is not very strong but is acceptable for implant uses.
A
. The first statement is true, the second statement is false.
B
. The first statement is false, the second statement is true.
C
. Both statements are true.
D
.
C
. Both statements are true.
A patient who has a very small or essentially no mandibular ridge is said to have a(n):
A
. Atrophic Dentulous Mandible
B
. Atrophic Endentulous Mandible
C
. Iatrogenic Edentulous Mandible
D
. Dysfunctional Edentulous Mandible
B
. Atrophic Endentulous Mandible
An alveolar ridge having no teeth is said to be edentulous. In most cases, when the mandibular arch atrophies, it becomes smaller in size due to aging. An atrophic edentulous mandible is one that has no teeth, is very "lo
The patient's home care regimen of implant maintenance may consist only of a toothbrush and floss. Without proper maintenance, the possibility of implant failure greatly increases.
A
. The first statement is true, the second statement is false.
B
. The fi
C
. Both statements are true.
The prosthodontic phase of implant treatment involves the placement of several "parts" or attachments. a patient who has completed the surgeries and restorative care would receive in, in order:
A
. Cylinder, Implant, Abutment, Crown
B
. Implant, Cylinder,
D
. Implant, Abutment, Cylinder, Crown
1. First surgery an implant is placed
2. In the next surgery a healing cap is placed, which is exposed to the oral cavity.
3. Later the healing cap is removed and an abutment is placed the implant.
4. It acts as an a
All of the following should be included in the post care maintenance of a patient with an implant except one. Which one is the exception?
A
. Necessary chairside, home care instructions
B
. Recommended auxiliary aids
C
. Selecting the restorative material
C
. Selecting the restorative material for an adjacent restoration.
The scope of practice of dental hygiene does not include selecting restorative material for tooth restoration.
Chapter 6 Book Questions
Chapter 6 Book Questions
Just after Jennifer triturated her amalgam, the apperance of it was "crumbly" and dry. It already looked set. The amalgam was most likely:
A
. Mixed with an increased mercury/alloy ratio
B
. Over-triturated
C
. Properly triurted
D
. Under-triurated
B
. Over-triturated
Over titurated amalgam is difficult to condense, exhibits a shortened working time, and tends to crumble.
Under triturated amalgam has a mushy grainy feel and is difficult to properly condense, it may also appear soupy
Properly tritura
Which of the following elements is used in the highest amount in an amalgam restoration?
A
. Tin
B
. Copper
C
. Silver
D
. Mercury
E
. Aluminum
D
. Mercury
Dental amalgam is comprised of mercury and amalgam alloy approx. 50% each. It was mention that silver (AG) 65% alloy, but that is 65% of the 50% of the alloy component of the dental amalgam. This reasoning is also true for copper and tin. Alum
Amalgam is strongest in ______________ strength after it has set.
A
. Shear
B
. Tensile
C
. Compressive
D
. Bending
C
. Compressive
Amalgam has a high compressive strength, but tensile and shear strengths are comparatively low. Bending strength is a combination of tensile and compression strengths and is low as well.
The elements composing the gamma-two (Y2) phase (the weakest and most corrosive prone phase) of the amalgam reaction are?
A
. Silver and Tin
B
. Silver and Mercury
C
. Tin and Mercury
D
. Tin and Tin
C
. Tin and Mercury
Tin-Mercury compromises the gamma two phase of the setting reaction of low copper dental amalgams. Gamma is used to designate the silver tin phase. Gamma one is used to designate the silver-merry phase. There is no tin-tin compound in
The function of silver in the amalgam reaction is to:
A
. Reduce strength and corrosion resistance
B
. Increase strength and corrosion resistance
C
. Minimize oxidation
D
. Maximize oxidation
B
. Increases strength and corrosion resistance
- Zinc will minimize oxidation
- Tin will reduce strength and corrosion resistance and will maximize oxidation
Control of the mercury content during mixing and condensing of amalgam must be carefully considered because:
A
. The higher the mercury content, the higher the strength and lower the marginal breakdown.
B
. The lower the mercury content, the higher the st
B
. Lowering the mercury content, the higher the strength and the lower the marginal breakdown.
Increasing the mercury content decreases the strength and results in more marginal breakdown
The single most important feature that accounts for the clinical success of amalgam restorations is:
A
. Finish and Polish
B
. Marginal Seal
C
. Economy
D
. Ease of Manipulation
B
. Marginal Seal
The marginal seal of corrosion products that forms over time, between the inner surface of the tooth and the restoration, is the feature that makes amalgam a successful restorative material. The price and the ease of use are advantages,
The manufacturers of dental amalgam control all of the following except:
A
. Alloy composition
B
. Rate of setting reaction
C
. Proper trituration technique
D
. Particle size
C
. Proper trituration technique
Proper tituration technique is controlled by the dentist, whereas the composition of the alloy, rate of the setting reaction, particle shape, and particle size of the alloy are controlled by the manufacturer.
An amalgam restoration that has been finished and polished:
A
. Reduces the ability of plaque to adhere
B
. Resists tarnish and corrosion
C
. Will not have any voids
D
. Is more likely to have continuous margins
E
. All of the above
F
. A,B, and D
G
. A,
F
. A, B, and D
An amalgam restoration that has been finished and polished reduces the ability for plaque to adhere, resists tarnish and corrosion and is more likely to have continuous margins with tooth structure. Voids in the restoration are the result
In the low-copper or traditional amalgam reaction, tin reacts with mercury. In the high-copper amalgam reaction, tin reacts with:
A
. Silver
B
. Copper
C
. Zinc
D
. Mercury
B
. Copper
In the high copper amalgam reaction, tin reacts with copper rather than mercury. This eliminates the undesirable gamma 2 phase, an ag-sn compound. Tin reacts with mercury in the low copper setting reaction to form gamma 2 zinc, if present, redu
The life expectancy of an amalgam restoration is indirectly related to the size of the restoration.
As the restoration increase in size, internal stresses decrease, as does the life expectancy.
A
. The first statement is true, the second statement is fals
A
. The first statement is true, the second statement is false.
As the restoration increases in size, the internal stresses INCREASE and the life expectancy DECREASES.
Ashley was condensing an amalgam during lab ad she noticed that the triturated amalgam had a softer, "mushy" feel. She most likely used what type of alloy in the mixed amalgam?
A
. Spherical
B
. Lathe-Cut
C
. Admixed
D
. Blended
A
. Spherical
Lathe cut alloy particles require more force during condensation because these particles are rough and do not slide past each other easily
Blended or admixed alloy particles would have an in between consisentcy or feel that of spherical or l
Amalgam may be used for variety of restorative procedures. ALL of the following pertain to the use of amalgam EXCEPT:
A
. Good service to patients at a reasonable cost
B
. For cingulum pit areas on the lingual of the anterior teeth
C
. Amalgam cores
D
. R
D
. Restoring class I, II, IV, V
Amalgam is a cost effective restorative material that provides good service over a reasonably long time.
It is used for amalgam cores, tooth fractures, cingulum pits on anterior teeth
It is commonly used for class I, II, V
It has been reported in the scientific literature that _______% of dental patients have a TRUE mercury allergy.
A
. 0.01
B
. 0.05
C
. 0.1
D
. 1.0
C
. 0.1
0.1 of the population has a true allergy to mercury. Therefore, for the vast majority of patients, mercury toxicity is not a problem
The use of gold foil is limited to small restorations because of its:
A
. Short-term longevity
B
. Low strength compared to other restorative materials
C
. High cost of gold foil compared to other materials
D
. Unique handling characteristics
B
. Low strength compared to other restorative materials
When properly placed, direct gold or gold foil is a long lasting restoration
It is placed by condensing it into the cavity preparation. It's cost is reasonable, but the cost of labor to place it can
Chapter 10 Book Questions
Chapter 10 Book Questions
If a mold that is created for investing and casting does not _______ to compensate for the action of the metal alloy, the casting will not fit
A
. Contract
B
. Equate
C
. Expand
D
. None of the above
C
. Expand
The most obvious purpose of the investment is to __________.
A
Enlarge the mold by hygroscopic expansion
B
. Enlarge the mold by thermal expansion
C
. Form the mold for the casting
D
. Provide compensation for contraction
C
. Form the mold for the casting
Porcelain is "best suited" for which of the following?
A
. Full coverage posterior crowns
B
. MODFL onlays
C
. Veneers on anterior teeth
D
. MOD inlays
C
. Veneers on anterior teeth
The crown(s) portion of a dental bridge is called the _______.
A
. Pontic
B
. Retainer
C
. Abutment
D
. FPD
B
. Retainer
Which of the following waxes is hard, leaves no burnout residue, and has a higher melting temperature?
A
. Boxing
B
. Rope
C
. Sticky
D
. Baseplate
E
. Inlay
E
. Inlay
During the casting procedure, a wax pattern is heated, and the wax melts and flows out of the mold. As the temperature continues to rise, any residual wax is burned away. This heating procedure is called:
A
. Shrinkage compensation
B
. Investing
C
. Burno
C
. Burnout
Identify the correct sequence in the centrifugal casting process:
A
. Add Sprue to Pattern, Place in Crucible Former, Invest and then Cast
B
. Add Sprue to Pattern, Invest, Place in Crucible Former, and then Cast
C
. Place Sprue in Crucible Former, Add Pa
A
. Add Sprue to Pattern, Place in Crucible Former, Invest and then Cast
AA 33% gold alloy may also be expressed as ______.
A
. 10 carat
B
. 16 carat
C
. 333 fine
D
. 33 fine
C
. 333 fine
The term used to define the process of firing porcelain powder to become a solid is __________.
A
. Liquidating
B
. Sintering
C
. Burnishing
D
. Investing
B
. Sintering
One type of an all-ceramic restoration is castable glass. All-ceramic restorations are superior to ceramometal restorations in all respects.
A
. The first statement is true, the second statement is false.
B
. The first statement is false, the second state
A
. The first statement is true, the second statement is false.
Which of the following is considered to be a fixed indirect restoration?
A
. Amalgam
B
. Direct gold (gold foil)
C
. Onlay
D
. Composite
C
. Onlay
A restorative material that is placed on the facial surface of anterior teeth to "cover" or hide an esthetic problem is called ________.
A
. Coping
B
. Veneer
C
. Build-up (Core)
D
. Pontic
B
. Veneer
Another name for a provisional restoration is ______ restoration.
A
. Conditional
B
. Non-permanent
C
. Build up
D
. Temporary
D
. Temporary
Silver is classified as a _______ metal
A
. Non-precious
B
. High noble
C
. Precious
D
. Noble
C
. Precious
An advantage of bonding porcelain to metal is:
A
. A precise fit of the metal
B
. The resulting opacity
C
. The resulting translucency
D
. Ease in plaque removal
A
. A precise fit of the metal
Chapter 12 Book Questions
...
The type of implant that involves cutting a hole into the alveolar bone and then pressing or screwing the implant is called:
A
. Subperiosteal
B
. Staple
C
. Transosseous
D
. Endosseous
D
. Endosseous
Endosseous or tooth form implants are screwed or pressed into a cut hole in the bone.
Transosseous or staple implants include a plate and bolts that go through the mandible in the anterior region.
Subperiosteal implants involve two surgerie
Which of the following takes place during the second endosseous implant surgery?
A
. An impression is taken for crown fabrication
B
. An abutment is attached to the body of the implant
C
. A healing cap is attached to the body of the implant
D
. The amoun
C
. A healing cap is attached to the body of the implant
It extends out of the mucosa into the oral cavity. Once this heals and epithelial tissues are formed, the healing cap is removed, and an abutment is placed. Impressions may be necessary before treat
To ensure longevity and function of the implant, the patient is responsible for:
A
. Eventual payment in full of all implant procedures
B
. Plaque control
C
. Applicationof tray delivered fluoride
D
. Proper occlusion
B
. Plaque control