DH104 Ch. 11-12

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The success rate of dental implants is more than _____% with careful case selection.

90%

the primary base metal used in casting alloys are

copper, nickel, silver, zinc, tin, titanium

The most esthetic margin for a ceramic-metal crown is the ___________________________________.

facial margin

Tin is often added to the solder to___________________ the melting range and improve the flow of the molten metal.

lower

____is the base metal that has the highest incidence of allergic response.

nickel

______ solders are used primarily in dentistry to solder fixed-space maintainer components and to solder wire components to removable orthodontic appliances

silver

Predetermined holes in the ________________ allow the surgeon to cut a hole into bone for the implant at the correct angulation.

stent

the metal most commonly used for dental implants is _____

titanium

Noble dental casting alloys do not require any gold but must contain at least ________________noble metals by weight.

25%

During a two-stage endosseous surgical implant placement procedure, the healing abutment is placed about _____ following placement of the implant fixture.

3 months

the patient should return to the dental office at _________ intervals for routine implant assessment and maintenance

3-4 months

Failure of the implant that occurs after the initial integration is often caused by:

bacterial infection extending from the peri-implant tissues into the bone or by overloading the implant during function, leading to loss of supporting bone

the purpose of a post is to retain the _______ over which the final restoration (crown) is placed

core buildup

the _______ implant is the most commonly used in dentistry today

endosseous

The higher the _____________________ number of a gold solder, the higher the gold content and the lower the melting point of the solder.

finess

to make room for the metal substructure and porcelain, porcelain fused to metal crowns require ______ reduction of the tooth than all-metal crowns

greater

An _________________________________ surgical procedure means that the implant fixture is placed directly into the new socket when the implant procedure involves the extraction of a tooth.

immediate-placement

the correct order for application of the porcelain layers during the creation of a porcelain-bonded-to-metal crown is

opaque layer--> body and incisal porcelains--> surface glaze

____ increases the hardness of the alloy and is widely used because it has good corrosion resistance and is less extensive than gold

palladium

although _______ is considered to be a precious metal, it is not considered noble because of its corrosion in the oral cavity

silver

implants are of three main types

subperiosteal, transosteal, and endosseous

Close adaptation of _____ epithelium to the implant surface helps develop a biological seal that prevents microorganisms from invading the tissues.

sulcular

_____ metal has the characteristics of being able to be heat-modified, or annealed, to create differing resistance to deformity

wrought


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