Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Spring 15 Fixed Restorative > Quiz 1 > Flashcards

Quiz 1 Flashcards

(62 cards)

Start Studying
1
Q

adaption

A

the degree of fit between a prosthesis and supporting structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

axial inclination

A

the alignment of the long axis of a tooth to a selected plane, often the horizontal plane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

axis preparation

A

the planned line or path of placement and removal for a dental restoration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

bevel

A
  • a slanting edge

- the process of slanting the finish line and curve of a tooth preparation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

bur

A

a steel or tungsten carbide rotary cutting instrument

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

bur head

A

the cutting portion of a dental bur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

bur head length

A

the axial dimension of the bur head

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

bur head shape

A

the geometrical outline form of the cutting surface edges, usually described successively by proximity from the shank to the tip end

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

bur shank

A

that component of the dental bur which fits into the head piece

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

butt

A

to bring any two flat-ended surfaces into contact without overlapping, as in a butt joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

chamfer

A

a finish line design for tooth preparation in which the gingival aspect meets the external axial surface at an obtuse angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

chamfer angle

A

the angle between a chamfered surface and one of the original surfaces from which the chamfer is cut

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

clearance

A

a condition in which bodies may pass each other without hindrance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

clinicial crown

A

the portion of a tooth that extents from the occlusal table or incisal edge to the free gingival margin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

complete crown

A

restoration that covers all the coronal tooth surfaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

convergence angle

A
  • the taper of a crown preparation
  • Recommended range 2-10 degrees
  • ideal 6 degrees
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

crown

A
  • the highest portion of a tooth occlusal to the dentioenamel junction or artificial substitute for this
  • to place a crown on a tooth, dental implant or tooth substitute
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

deformation

A

the change of form or shape of an object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

dentin

A

a calcareous material similar to but harder and denser than bone that comprises that principle mass of the tooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

divergence

A

the reverse taper of walls or a preparation for a restoration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

divergence angle

A

the sum of the angles of taper of opposing walls of a tooth preparation that diverge away from each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

draw

A

the taper or convergence of walls of a preparation for a restoration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

extracoronal

A

that which is outside or external to, the crown proportion of a natural tooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

extracoronal retainer

A

that part of a fixed dental prosthesis uniting the abutment of the other elements of a prosthesis that surrounds all or part of the prepared crown

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
finish line
the terminal portion of the prepared tooth
26
fit
the adaptation of any dental restoration to its site, in the mouth
27
groove
a narrow channel or depression, such as the indentation between tooth cusp or the retentive features placed on tooth surfaces to augment the retentive characteristics of crown preparations
28
interocclusal clearance
the amount of reduction achieved during tooth preparation to provide for an adequate thickness of restorative material
29
line angle
the point of convergence of two planes in a cavity preparation
30
lingual inclination
deviation of the coronal portion of a tooth from the vertical plane toward the tongue
31
long axis
a theoretical line passing lengthwise through the center of a body
32
margin
the outer edge of a crown, inlay, onlay or other restoration. The boundary surface of a tooth preparation and/or restoration is termed the finish line
33
path of placement (POW)
the specific direction in which a prosthesis is placed on the abutment teeth or dental implants
34
point angle
in the development of a cavity preparation, that place of convergence of three planes or surface
35
retention
that quality inherent in the prosthesis acting to resist the forces of dislodgment along the path of placement
36
retention arm
an extension that is part of a removable dental prosthesis and is used to aid in the fixation of the prosthesis; a part of a clasp
37
retention form
the features of a tooth preparation that resists dislodgment of a crown in a vertical direction or along the path of placement
38
shoulder finish line
a finish line designed for tooth preparation in which the gingival floor meets the external axial surfaces at approximately a right angle
39
supragingival
that portion of a natural or artificial tooth that is coronal to the gingival crest
40
taper
the convergence of two opposing external walls of a tooth preparation as viewed in a given plane
41
undercut
any irregularity in the wall of a prepared tooth that prevents the withdrawal or seating of a wax pattern or casting
42
veneer
a thin sheet of material usually used as a finish
43
Fixed prosthodontics
fixed prosthodontic treatment involves the replacement and restoration of teeth by artificial substitutes that are not readily removable from the mouth
44
patiente selection
- chief complain - communication - dental history - medical history - palpation - percussion - periodontal examination - systemic conditions - (TMJ) temporomandibular joint dyfunction
45
What are the principles of tooth preparation
1) biological consideration 2) mechanical consideration 3) esthetic consideration
46
Things to consider during tooth preparation that affect future dental health
- axial reduction - margins - occlusal considerations - preventing tooth fractures
47
Mechanical considerations of tooth preparation
1) providing resistance from 2) providing retention form 3) preventing deformation of the restoration
48
How do you provide resistance form
a. magnitude and direction of the dislodging forces b. geometry of the tooth preparation c. physical properties of the luting agent
49
How do you provide retention form
1) magnitude of the dislodging forces 2) geometry of the tooth preparation 3) roughness of the fitting surface of the restoration 4) materials being cemented 5) film thickness of the luting agent
50
How do you prevent deformation of the restoration
1) alloy selection 2) adequate tooth reduction 3) margin design
51
What are the types of crown
CVC- complete veneer crown MCC- metal ceramic crown ACC- All ceramic crown Zirconia
52
What is a CVC
a cast-gold extracoronal restoration which covers the clinical crown
53
Preparation
the final shape of the tooth produced by instrumentation to receive a restoration
54
Complete veneer crown preparation
extracoronal preparation involving the entire clinical crown
55
What are the indications that a crown is needed
1) extensive coronal destruction 2) short clinical crowns 3) endodontically treated teeth 4) maximum retention and resistance are needed 5) correction of axial contours
56
What are the contraindications of a crown
1) wherever an intact buccal or lingual wall exists 2) if less than maximum retention and resistance are needed 3) if objectives can be met with a more conservative restoration
57
What are the advantages of using a complete veneer crown
- high strength | - good retentive qualities
58
What are the disadvantage of using a complete veneer crown
- removal of large amount of tooth structure - adverse effects on tissue - display of metal - vitality testing not feasable
59
What are the sequence of steps of complete veneer crowns
- occlusal guide grooves - occlusal reduction - axial guide grooves - axial reduction( Buccal and Lingual) - axial reduction (Interproximal) - finishing and evaluation
60
What is the recommended dimensions
central groove: 1.0mm functional cusp: 1.5mm non-functional cusp: 1.0mm chamfer width: 0.5mm
61
Advantages and disadvantages of having a chamfer
advantage: distinct margin, adequate bulk, easier to control disadvantage: care needed to avoid unsupported lip of enamel
62
What should the final preparation provide
- ideal retention form - ideal resistance form - maximum conservation of tooth structure

Spring 15 Fixed Restorative (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions