Partial Dentures: Intro Flashcards by Agnes Zlotnicka

Q

resin retained bridges - adv?

A

comfertable
blend in with pts own natural teeth
fixed in place

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Q

resin retained bridges - disadv?

A

only 1 tooth per bridge
rely on abutment being strong and minimally restored

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Q

disadv of implants?

A

relies on excellent lab and clinical work
may be surgery involved
may be insufficient bone for implant

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Q

adv of dentures?

A

low cost
lower skillset compared to surgery and implants
v easy to adjust, further teeth can be added

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Q

disadv of acrylic denture?

A

has to cover more of pts soft tissue:
affects taste (covers tastebuds)
collects plaque

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Q

adv of acrylic denture?

A

easier to add teeth to

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Q

adv of chrome denture?

A

gingival clearance
covers less of palate
retention and support better

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Q

disadv of chrome denture?

A

difficult to repair
v expensive to make
cant add to it, so should only be provided to pts with no suspected firther tooth loss

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Q

Kennedy classification - list them all

A

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Q

Kennedy classification - define class 1

A

bilateral free end saddle

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Q

which class is this denture?

A

class 1

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Q

Kennedy classification - define class 2

A

unilateral free end saddle

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Q

which class is this denture?

A

class 2

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Q

Kennedy classification - define class 3

A

unilateral bound saddle

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Q

which class is this denture?

A

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Q

Kennedy classification - define class 4

A

anterior bound saddle

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Q

explain modifications to the kennedy classification

A

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Q

kennedy classification - what class is this?

A

class II mod 2

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Q

kennedy classification - what class is this?

A

class II mod 3

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Q

list the 4 components of a partial denture

A

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Q

which partial denture component is this?

A

saddle

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Q

what is the denture saddle?

A

the area of the denture that replaces the missing teeth

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Q

what is a denture flange?

A

the component that replaces gum (acrylic) - goes into the sulcus

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Q

define denture support

A

resistance from the dentures being pushed into the tissues during function

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what are the 2 types of denture support?

tooth borne mucosa borne

define a mucosa borne denture

all support is placed on soft tissues and no support is placed on teeth themselves

give an example of a mucosa borne denture

spoon denture

what is an adverse affect of a mucosa borne denture?

force transmitted to mucosa and underlying alveolar bone can lead to resorption especially resorption of the alveolar ridge

what is a tooth borne denture?

metal components on top of teeth Transmit forces down the long axes of the teeth and also prevent the clasp arms from over seating and traumatising the gingival tissues

which component of a partial denture allows the Transmission of forces down the long axes of the teeth and also prevent the clasp arms from over seating and traumatising the gingival tissues

occlusal rests

where is force transmitted on a tooth borne denture?

force transmitted to teeth either side - as long as those teeth are healthy no damage will be done

what is a tooth and mucosa supported denture?

where a denture has a mixture of both supports

what may be a problem of a tooth + mucosa supported denture?

can cause tipping due to uneven distribution of forces

define retention of a denture

Retention = Preventing the denture from being displaced away from the tissues

what are the 2 diff types of clasps that provide retention?

- occlusally approaching - gingivally approaching

what is an occlusally approaching clasp?

what is an gingivallyapproaching clasp?

which type of clasp tends to work best with molar teeth?

occlusally approaching

which type of clasp tends to work best with anterior teeth?

gingivally

label this

name this occlusally approaching clasp

occlusally approaching ring clasp

name this clasp

gingivally approaching I-bar

what is the function of a connector

things that join all components of denture together

what is a major connector?

what is a minor connector

name the steps in the development of a cobalt chrome denture

what is this type of denture called?

collet

what are the advantages of a colleted denture

what are the disadvantages of a colleted denture

increased plaque retention

what condition can poor plaque retention lead in a denture?

denture-induced stomatitis

why is it important that colleting is done correctly?

plaque retention and also otherwise the denture could traumatise the soft tissues

how can we minimise the risk of a collated denture traumatising the soft tissues

technician designs the acrylic to go over the teeth, over the margin

advantages of a spoon denture?

Low cost Quick means to replace small number of anterior teeth Gingival clearance

list the Disadvantages of Spoon Dentures

Localised gingival trauma Fracture & danger of inhalation Loose (Flipper)

modified spoon denture - how is retnetion and stability improved in this denture compared to a traditional spoon denture?

Addition of clasps Extending base to rest on teeth to stop denture from being able to move around

Advantages of Modified Spoon Denture

- Increased retention & stability - Increased tooth support due to cingulum rests

list the Disadvantages of Modified Spoon Denture

- Increased cost - Wrought wire clasps may fracture - Covers more gingival tissue - Bulkier appliance

list the 4 Principals of Good Denture Design

1. Gingival clearance where possible 2. Support is spread around the arch 3. The denture is rigid 4. The design is simple

list the clinical stages for acrylic dentures

list the Clinical Stages for Cobalt Chrome Dentures