Partially Edentulous Patients Flashcards

1
Q

____ is used when a screw to retain the prosthesis would go thru the cusp if placed on the occlusal surface

A

Lingual set screw

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2
Q

Problems with _____:

  • Increased risk of fracture; usually not an option due to difficulty of fabrication and placement
  • Very small screw an can’t be properly torqued in most scenarios leading to loosening
A

Lingual set screw

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3
Q

What are the 2 alternate options where a lingual set screw could be used?

A

Cement retained

Titanium angled base

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4
Q

For a cement retained crown, and ____ is used to help seat the crown on the abutments properly upon insertion

A

Seating jig

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5
Q

What are the 2 most important characteristics of cements used in cement retained implant crowns?

A

Retrievability

Radiographic Detection

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6
Q

TempBond (zinc oxide with eugenol) demonstrated the _____

grey level values for the cements tested.

A

highest

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7
Q

All cements containing ____ (TempBond, TempBond NE, Fleck’s)

could be detected radiographically

A

zinc

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8
Q

________ is a major concern of cement retained prostheses due to its strong association to periimplantitis

A

Undetected excess cement

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9
Q

_________ washes away over time and the restoration will become loose. This creates some
problems and may compromise the implant as well.

A

TempBond (zinc oxide with eugenol)

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10
Q

_________ cements are the most radiolucent and difficult to detect radiographically, the hardest to retrieve, most
difficult to remove excess, and the majority contain fluoride (associated to titanium corrosion), and should therefore be avoided
whenever possible

A

Definitive Resin based

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11
Q

_______ cements are specifically made for implant prostheses, combining radiopacity, resistance to wash-out and
secure retention, improved retrievability and non fluoride formulation (Ex: Premier Implant Cement; Telio CS CEM Implant)

A

Implant Resin based

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12
Q

How does fluoride affect implants as far as using a cement that releases fluoride?

A

Causes corrosion of titanium

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13
Q

If there is excess cement from placing an implant via cement retained, what is likely to occur?

A

Peri-implantitis

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14
Q

What situations should be avoided in the posterior maxilla as far as FPD implant retained treatment plans?

A

Long span FPD (2+ pontics)

Distal Cantilever

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15
Q

A longer (larger) cantilever tooth has ____ force

A

Increased force

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16
Q

What are the 2 teeth that were mentioned that are mostly acceptable for cantilevers?

A

Mand PM

Max laterals

17
Q
Technical complications associated with \_\_\_\_\_\_
• Implant Fractures
• Veneer Fracture
• Abutment Screw Fracture
• Screw Loosening
• Loss of Retention
A

ICFDP (Implant supported cantilevered FPD)

18
Q

The ____ the MD width of cantilever is better

A

Smaller width is better

19
Q

Is a mesial or distal cantilever more favorable?

A

Mesial more favorable

20
Q

Should the fit of an implant cantilever be passive or snug?

A

Passiv

21
Q

T/F: •Unilateral, short-span ICFDP is a predictable and dependable
solution for the restoration of a partially edentulous area of the
mouth when there is a lack of bone to support an implant or there
are anatomical structures that need to be avoided.

A

True

22
Q

Implant supported distal cantilever prostheses,

have __% implant survival rate.

A

95%

23
Q
Problems with \_\_\_\_\_
Technical Problems
1. Implant fracture
2. Tooth intrusion
3. Intrusion of teeth with telescopic crown
4. Cement bond breakdown
5. Abutment tooth fracture
6. Abutment screw loosening
7. Fracturing of veneers
8. Prosthesis fracture
Biologic Problems
1. Peri-implantitis
2. Endodontic problems
3. Loss of an abutment tooth
4. Loss of an implant
5. Caries
6. Root fracture
A

Connecting teeth to implants

24
Q

What is the most common issue when connecting implants to teeth in FPDs?

A

Tooth intrusion

25
Q

Clinical Recommendations for _______
1. Select healthy teeth—periodontally stable and in dense bone.
2. Rigidly connect the tooth and implant (no stress breakers), employ large solder joints to enhance rigidity, or use one-piece
castings.
3. Avoid telescopic crowns (no copings).
4. Provide retention form with minimal taper of axial walls on abutment teeth. Enhance resistance form with boxes and
retention grooves if the clinical crown is not long.
5. Parallel the implant abutment to the preparation of the tooth and use a rigid connection.
6. Use permanent cementation (no screw retention or temporary cementation).
7. The bridge span should be short. Preferably, place one pontic between two abutments. However, with additional tooth
or implant support or cross-arch stabilization, additional pontics can be used.
8. Occlusal forces should be meticulously directed to the opposing arch.
9. In general, do not use TISPs in patients with parafunctional habits. If they are treated with TISPs, overengineer the case
by maximizing the number of implants and splinting.
10. Cantilever extensions should be used cautiously; however, they may be employed when tooth or implant support is
adequate (E.g. cantilever-implant-implant- pontic-tooth-tooth).
11. TISPs in patients with uncontrolled caries should be avoided; ISPs are preferred.
12. Pulpless teeth with extensive missing coronal tooth structure or root canal anatomy that is inadequate to predictably retain
a core or post and core should not be used in a TISP.

A

Tooth-Implant Supported FPD (TISP)

26
Q

Long-term success rates for tooth-implant connections are _____ VS implant-supported
restorations with regard to prognosis for teeth, implants, and suprastructure.

A

lower

27
Q

Use of rigid or nonrigid connectors leads to more favorable clinical outcomes in terms of long-term stability,
occurrence of complications, and tooth intrusion in TISFPDs?

A

Rigid connectors

28
Q

Is there a particular crown to root ratio needed for implants?

A

No

29
Q

will a shorter or longer implant be more affected by smaller amount of bone loss?

A

Shorter implants

30
Q

How much distance (mm) between the bone and papilla will black triangles begin to occur in tooth-tooth environment?

A

5mm

31
Q

How much distance (mm) between the bone and papilla will black triangles begin to occur in tooth-pontic environment?

A

6.5 mm

32
Q

How much distance (mm) between the bone and papilla will black triangles begin to occur in tooth-implant environment?

A

4.5 mm

33
Q

How much distance (mm) between the bone and papilla will black triangles begin to occur in pontic-pontic environment?

A

6 mm

34
Q

How much distance (mm) between the bone and papilla will black triangles begin to occur in implant-pontic environment?

A

5.5 mm

35
Q

How much distance (mm) between the bone and papilla will black triangles begin to occur in implant-implant environment?

A

3.5 mm

36
Q

Which restorative environment is the least likely to get black triangles as there is less distance between bone and papilla?

A

Implant to implant

37
Q

Which restorative environment is the most likely to get black triangles as there is more distance between bone and papilla?

A

Pontic-pontic

38
Q

Do you want a wider or narrow implant platform for posterior teeth?

A

Wider

39
Q

Do you want a wider or narrow implant platform for mand anterior teeth?

A

Smaller