PRELIM: FPD Flashcards

1
Q

Factors that contribute to further irritation and demise of abutment tooth

A
App of irritating med
Poorly fitted
Poorly cemented
App of hot
Indiscriminate
Trauma from
Trauma from forces
Irritation from acid
Hydraulic pressure gen during cementation
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2
Q

Other factors which ABUSE the Tooth

A

BOBTA

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3
Q

How to reduce the ODDS of inducing IRREVERSIBLE DAMAGE to the Abt

A
  1. Avoid drugs/meds that may do more harm than benefit
  2. Repairing and recontouring the abt tth with non irr and adhesive resto matls
  3. Prov well fitting protec covering
  4. Recog the factors that contribute to pain or discomfort
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4
Q

Pain may be caused by

A

Leakage in the protective covering
Hydraulic pressure engendered during cementation
High occ

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5
Q

Biophysical factors rel to FP

A
Acc of fit
Resist to deformation
Int surface texture
Length of bridge span
Design of fixed prosthesis
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6
Q

Basic rules for a cantilever fpd

A
Should only have Single pontic
Abt retainer should only be full crowns
2 or more abts
Good root and crown length and perio con
Pontic should be slightly smaller
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7
Q

Principles of tooth prep

A
Pres of tooth structure
Ret resis
Struc durability
Marginal integrity
Pres of the periodontium
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8
Q

Against removal along path of insertion or log axis of the tth prep

A

Retention

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9
Q

Against dislodgement by forces in apical or oblique

A

Resistance

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10
Q

2 elements of retention

A

Ext

Int

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11
Q

External (ret)

A

BuLi of prep tth

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12
Q

Int (ret)

A

BuLi walls of a prox box of inlay

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13
Q

Recommended taper

A

3-5

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14
Q

Taper for both walls

A

6-10

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15
Q

An imag line wc resto is placed onto or removed from the prep

A

Path of insertion

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16
Q

A resto must contain bulk of matl

A

Struc durability

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17
Q

Gold
Fxn
Non fxnal

A
  1. 5 fxn

1. 0 nonfxnal

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18
Q

pfmc
Fxn
Nonfxnal

A

1.5-2 fnx

1-1.5 nonfxn

19
Q

Fxnal cusp bevel
Upper -
Lower -

A

Upper - Li

Lower - bu

20
Q

Margin of veneer

A

Chamfer

21
Q

All ceramic margin

A

Shoulder

22
Q

Inlays onlays

A

Shoulder bevel

23
Q

Bulk axial reduc and shoulder prep

A

Flat ended tapered

24
Q

Depth grooves bur

A

Round diamond

25
Q

Lingual reduc bur

A

Oblong football

26
Q

Bur for bevel

A

Tapered oblong or flame

27
Q

Bur chamfer for molars

A

Straight cylinder with tapered pt

28
Q

Bur for axial and occ reduc

A

Round ended tapered diamond cylinder

29
Q

Bur for gross reduction, ant li reduc

A

Round diamond wheels

30
Q

Bur for prox slices to remove contact

A

Thin tapered diamond cones (needle)

31
Q

Bur for groove placement

A

Cross cut fissure bur

32
Q

Indications of FPD

A

Short span es
Px preference
Presence of spund tth that can offer suff support adj to the es
Cases pf ridge resorption where and rpd cannot be stable
Mentally compromised or physically handicapped px who cant maintain an rpd

33
Q

Contraix of fpd

A
Very yound pxs with large pulp chambers
Large amt of bone loss as in trauma
Long span es
Very old pxs
Mentally compromised pxs
34
Q

Types of retainer accdg to tth coverage

A

Fvc
Pvc
Conservative - maryland, fiber reinforced fpd

35
Q

Types of retainer accdg to matl

A

All metal
Metal/cer
All cer
All acrylic

36
Q

Economically best type of crown for ant and post

A

Metal ceramic crowns

37
Q

Least conservative crown

A

All ceramic

38
Q

Ideal req for pontics

A
Shld restore fnx of tth
Provide good esthetics
Comfortable to pxs
Biocompatible
Permit eff oh, easy to clean
Preserve mucosa and bobe
39
Q

Indications of cantilever fpd

A

Es and psych cons
To avoiduse of rpd
To avoidthe acutting and prep of tth across the span
Occ to provide a housing for an att

40
Q

Indications for fpd

A

SP-CP-M

41
Q

Types of retainer accdg to tooth coverage

A

Pvc
Fvc
Conservative - maryland/fiberreinforced

42
Q

Types of ret accdg to MATERIAL

A

All metal
Metal/cer
All cer
All acrylic

43
Q

Criteria for selecting type of retainer

A
Appearance
Alignment of abt
Cond of abt
Cost
Preser of ts