Introduction Flashcards

1
Q

2 Types of removable prostheses

A

Complete Denture
Removable Partial Denture

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2
Q

3 Types of RPDs

A

Cast Metal Frame
Acrylic
Flexible Base

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3
Q

90% of this course

A

Cast Metal Frame

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4
Q

Cast Metal Frame
made of

A

CoCr
NiCr

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5
Q

— is used more often,
because

A

CoCr
patients may have
Nickel sensitivity.

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6
Q

• Prosthetics:

A

– art or science of replacing absent body parts

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7
Q

Prosthesis:

A

any artificial part

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8
Q

Prosthodontics:

A

– branch of dentistry that pertains to the
replacement of missing teeth and oral tissues

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9
Q

Prosthodontics divisions:
(3)

A

– Fixed prosthodontics
– Removable prosthodontics
• Complete
• Partial
– Maxillofacial prosthetics

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10
Q

Dental Prosthesis:

A

– artificial replacement of 1 or more teeth and/or
associated structures

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11
Q

Fixed Partial Denture (FPD):
(2)

A

– Prosthesis replacing teeth in partially dentate arch.
– Not designed to be removed by patient.

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12
Q

Removable Partial Denture (RPD):
(2)

A

– Prosthesis replacing teeth in partially dentate arch.
– Designed to be removed by patient.

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13
Q

Abutment:

A

– Tooth used to support prosthesis

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14
Q

Residual (edentulous) ridge:
(2)

A

– Residual bone & soft tissue covering that
remains after tooth loss.
– Part of support for certain types of RPDs

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15
Q

Centric Relation:

A

– Maxillomandibular relationship in which the
condyles articulate with the thinnest avascular
portion of their respective disks with the complex
in the anterior-superior position against the slope
of the articular eminence.

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16
Q

CR
– Position independent of

A

tooth contact.

17
Q

CR
– Position restricted to purely — motion.

A

rotational

18
Q

Maximal intercuspal position

A

– Position with complete intercuspation of
opposing teeth.

19
Q

MIP
Independent of

A

condylar position

20
Q

MIP
Previously called

A

Centric (Habitual)
Occlusion

21
Q

Model:

A

reproduction for demonstration,
accuracy not implied.

22
Q

Cast:

A

An accurate positive reproduction of the
maxillary or mandibular arch.

23
Q

Diagnostic Cast:

A

Cast for the purpose of
diagnosis & treatment planning.

24
Q

Master Cast:

A

Replica of teeth, residual ridges,
& other parts of the dental arch used to
fabricate dental restoration or prosthesis

25
Tooth-supported RPD:
– RPD that depends entirely on natural teeth for support
26
Tooth-tissue supported RPD (3)
– Extension base RPD – RPD supported and retained by teeth at only one end. – Denture base is supported by teeth & the residual ridge
27
skipped Indications for RPDs (7)
• Edentulous area(s) too long or numerous for a fixed prosthesis • Need to restore lost soft and hard alveolar tissue, especially in the anterior region****** • Reduced periodontal support of remaining teeth • Need to distribute masticatory stresses across the dental arch: cross-arch stabilization • No posterior abutment tooth • Immediate replacement of teeth • Attitude & desires of patient (economic considerations)
28
Disadvantages of RPDs (5)
• Removable, not considered ‘part’ of patient • May be lost or broken • Clasps may be visible, less esthetic • May dislodge during function • May trap food while eating
29
Height of Contour/Survey Line
– Line encircling a tooth that designates its greatest diameter at a selected position determined by a dental surveyor
30
Height of contour will change if the
axial inclination is changed
31
Suprabulge Area
Portion of tooth above the height of contour
32
Infrabulge Area
– Portion of tooth below the height of contour
33
Infrabulge Area May also be referred to as
Undercut
34
Undercut:
• Surface of object below the height of contour in relation to the path of placement