14: Support_for_distalext. Flashcards by rawr vroom

does not have the advantage of total tooth support

DISTAL EXTENSION RPD

How well did you know this?

Not at all

Perfectly

DISTAL EXTENSION RPD:

does not have the advantage of __ __ __

total tooth support

How well did you know this?

Not at all

Perfectly

DISTAL EXTENSION RPD:

dependent on residual ridge for __ __ and ___

support, stability, and retention

How well did you know this?

Not at all

Perfectly

DISTAL EXTENSION RPD:

___ ___ is needed to avoid lifting away from ridge

direct retention
indirect retention
direct resistance
indirect resistance

indirect retention

How well did you know this?

Not at all

Perfectly

DISTAL EXTENSION RPD:

patients must be made aware of the ___

outcomes
limitations
consequences

limitations

How well did you know this?

Not at all

Perfectly

FACTORS INFLUENCING SUPPORT OF DISTAL EXTENSION BASE:

extent of residual ridge ___ by the denture base

coverage
load
framework

coverage

How well did you know this?

Not at all

Perfectly

FACTORS INFLUENCING SUPPORT OF DISTAL EXTENSION BASE:

type and accuracy of the __ __

residual ridge
denture base
impression registration

impression registration

How well did you know this?

Not at all

Perfectly

FACTORS INFLUENCING SUPPORT OF DISTAL EXTENSION BASE:

accuracy of the ___ of the denture base

fit
load
coverage

fit

How well did you know this?

Not at all

Perfectly

FACTORS INFLUENCING SUPPORT OF DISTAL EXTENSION BASE:

___ of the removable partial denture framework

quality
design
impression

design

How well did you know this?

Not at all

Perfectly

FACTORS INFLUENCING SUPPORT OF DISTAL EXTENSION BASE:

total __ __ applied

impression registration
ridge coverage
occlusal load

occlusal load

How well did you know this?

Not at all

Perfectly

CONTOUR AND QUALITY OF THE RESIDUAL RIDGE:

Connective Tissue

Contour
Quality

Quality

How well did you know this?

Not at all

Perfectly

CONTOUR AND QUALITY OF THE RESIDUAL RIDGE:

Firm

Contour
Quality

Quality

How well did you know this?

Not at all

Perfectly

CONTOUR AND QUALITY OF THE RESIDUAL RIDGE:

Dense

Contour
Quality

Quality

How well did you know this?

Not at all

Perfectly

CONTOUR AND QUALITY OF THE RESIDUAL RIDGE:

Fibrous

Contour
Quality

Quality

How well did you know this?

Not at all

Perfectly

CLASSIFICATION BY ATWOOD’S

Pre-extraction

Order 1,2,3,4,5,6

How well did you know this?

Not at all

Perfectly

CLASSIFICATION BY ATWOOD’S

Post-extraction

Order 1,2,3,4,5,6

How well did you know this?

Not at all

Perfectly

CLASSIFICATION BY ATWOOD

High, well-rounded

Order 1,2,3,4,5,6

How well did you know this?

Not at all

Perfectly

CLASSIFICATION BY ATWOOD’S

Knife-edge

Order 1,2,3,4,5,6

How well did you know this?

Not at all

Perfectly

CLASSIFICATION BY ATWOOD’S

Low, well-rounded

Order 1,2,3,4,5,6

How well did you know this?

Not at all

Perfectly

CLASSIFICATION BY ATWOOD’S

Depressed

Order 1,2,3,4,5,6

How well did you know this?

Not at all

Perfectly

crest of bony mandibular ridge is ___

cancellous

How well did you know this?

Not at all

Perfectly

loss of ______ over residual ridge after tooth extraction

firm mucosa

How well did you know this?

Not at all

Perfectly

__________ is better suited for primary stress-bearing role

buccal shelf region
labial shelf region
residual ridge
lingual region

buccal shelf region

How well did you know this?

Not at all

Perfectly

The tissues covering the ___ of the maxillary residual ridge must be less displaceable than the tissues that cover palatal areas, or relief of ___ ___must be provided in the denture bases or for palatal major connectors.

crest , palatal tissues

How well did you know this?

Not at all

Perfectly

The gum on the upper ridge should be ___ than the roof of the mouth. This way, the dentures stay ___.

firmer , stable

EXTENT OF RESIDUAL RIDGE COVERAGE BY THE DENTURE: the broader the residual ridge coverage, the greater is the distribution of the __, which results in __ __ per unit area

load, less load

TYPE AND ACCURACY OF THE IMPRESSION REGISTRATION: not supporting occlusal load Anatomic Form Functional Form

Anatomic Form

TYPE AND ACCURACY OF THE IMPRESSION REGISTRATION: supporting load Anatomic Form Functional Form

Functional Form

ANATOMIC FORM: 4 impression materials

→ metallic oxide impression paste → mercaptan rubber → silicone → hydrocolloid

ANATOMIC FORM: Distortion & Tissue Displacement → ____ of impression material → ____ of impression material

confinement, viscosity

ANATOMIC FORM: Purpose most physiologic form for__ __

denture support

When some pressure is applied-like from biting, pushing with a finger, or using a custom tray–the ridge shape under that load is called the

Functional form

Steffel’s categories of managing distal extension RPDs:

o stress-breakers or resilient equalizers o physiologic basing o stress distribution

requirements of distributed stress denture: o ___-occlusal rests o __ and __ framework

positive, rigid and nonflexible

requirements of distributed stress denture: o __ retainers o ____ and ___ coverage bases

indirect well-adapted and broad

ACCURACY OF THE FIT OF THE DENTURE BASE: distal extension is enhanced by close contact of ______ and _____

tissue surface and residual ridge tissue

ACCURACY OF THE FIT OF THE DENTURE BASE : denture base must be related to the RPD framework as _________ to the abutment teeth when impression was made

basal seat tissues

DESIGN OF THE REMOVABLE PARTIAL DENTURE FRAMEWORK: the greatest movement takes place at the most _____ of the denture bas

posterior extent

___ and ___ have suggested that moving rotational axis from a disto-occlusal rest to a more anterior location, more of the residual ridge receives vertically directed occlusal forces to support the denture base. Steffel and Kratochvil Steifiel and Katrochil Stephen and Katrochil

Steffel and Kratochvil

Steffel and Kratochvil have suggested that moving rotational axis from a disto-occlusal rest to a more ___ location, more of the residual ridge receives ___ directed occlusal forces to support the denture base.

anterior, vertically

TOTAL OCCLUSAL LOAD APPLIED: patients with distal extension removable partial dentures generally orient the food bolus over _____ natural teeth rather than prosthetic teeth posterior teeth rather than natural teeth

natural teeth rather than prosthetic teeth

TOTAL OCCLUSAL LOAD APPLIED: when the opposing natural teeth are super-erupted, control of eccentric functional contacts and the resultant ____ loads makes chronic discomfort a clinical challenge

horizontal

TOTAL OCCLUSAL LOAD APPLIED : the reduction of the size of the occlusal table ___ the vertical and horizontal forces that act on the removable partial dentures and lessens the ___ on the abutment teeth and supporting tissues

reduces, stress

9 ANATOMIC FORM IMPRESSION

(1) Anatomic Form Impression (2) Rest and Base Fit (3) Load Distribution (4) Tissue Load Bearing (5) Load Distribution Importance (6) One-Stage Impression Risks (7) Individualized Impression Tray (8) Reline Considerations (9) Distribution of Masticatory Load

the objective of any functional impression technique is to provide maximum ___ for the RPD base retention rigidity stability support

support

FUNCTIONAL IMPRESSION: to make a good denture, it’s important to know how ___ and ___ for taking impressions work. medical conditions and skills material quality and experience different materials and methods

different materials and methods

FUNCTIONAL IMPRESSION: no one type of material can perfectly capture both the shape of the teeth and gums at rest and how they actually work when you bite T or F

FUNCTIONAL IMPRESSION: we need to use a _____to take a corrected impression that shows both how things look and how they function strategy second method backup

second method

METHODS FOR OBTAINING FUNCTIONAL SUPPORT FOR THE DISTAL EXTENSION BASE: distributes the ___ over a large area as possible stress load

load

SELECTIVE TISSUE PLACEMENT IMPRESSION METHOD: it starts with the understanding that the soft tissues in the mouth can be gently moved or recorded in their _______, and how much they can be displaced without causing harm depends on their reaction to pressure

natural resting state

SELECTIVE TISSUE PLACEMENT IMPRESSION METHOD : the tissues in the back of the mouth, near the _____, can be slightly pushed down to create a good seal for the upper denture without causing harm

vibrating line

FRAMEWORK FITTING: the framework fitted to the teeth while ______ is registered provides a means of coordinating both

soft tissue support

FRAMEWORK FITTING : this means that before the trays are ___, the framework must be ___ in the mouth

attached , fitted

FRAMEWORK FITTING STEPS: (1) Use of ______ to identify ____ to completely seating the removable partial denture framework.

disclosing media, interferences

FRAMEWORK FITTING STEPS: (2) Use of disclosing media to identify the ____ of the component parts of the framework during ___ of the framework and when the framework is completely seated in its designated terminal position.

appropriate contact(s), seating

FRAMEWORK FITTING STEPS:: (3) ___ the seated framework to the ___ occlusion.

Adjusting, opposing

FUNCTIONAL IMPRESSION TECHNIQUE: used when the mucosa of the residual ridge feels ____

uniformly firm

captures the shape and position of the tissue while the patient bites down, simulating the effects of chewing forces FRAMEWORK FITTING FUNCTIONAL IMPRESSION TECHNIQUE

FUNCTIONAL IMPRESSION TECHNIQUE

when this technique is applied to firm mucosa that doesn’t easily displace, it results in minimal movement of the prosthesis FAMEWORK FITTING FUNCTIONAL IMPRESSION TECHNIQUE

FUNCTIONAL IMPRESSION TECHNIQUE

CONTOUR AND QUALITY OF THE RESIDUAL RIDGE : Broad Contour Quality

Contour

CONTOUR AND QUALITY OF THE RESIDUAL RIDGE: Rounded Contour Quality

Contour

CONTOUR AND QUALITY OF THE RESIDUAL RIDGE: high vertical slopes Contour Quality

Contour