1. Introduction Flashcards by J L

Fixed Partial Prosthesis
• Rigidly \_\_\_\_ to and
supported by the \_\_\_\_
teeth
• Not designed to be removed
by the patient

Removable Partial Dental Prosthesis
• Supported entirely by ____ or both teeth and the tissues of the residual ridge
• Can be removed from the mouth and replaced by the patient

attached
abutment
teeth

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Tooth-supported PRDP (Tooth-borne PRDP)

Denture bases supported by abutment teeth through the use of ____

rests

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Tooth-tissue-supported PRDP - Has at least one denture ____ that extends anteriorly or posteriorly terminating in a denture base that is not ____ supported

Distal-extension PRDP (base extends posteriorly)

base

tooth

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Retention for the partial removable dental prosthesis is provided primarily from the ____.

clasps

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Maxillary Supporting Areas

Support is similar to dentures, it just depends where the edentulous areas are

Primary supporting areas are the ____

The depth of the fold is not providing support

Some secondary support in the ____ area

palate and ridge

anterior ridge

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Mandibular Supporting Areas

Once again, utilizing our ____ as primary support

____ and genial tubercle are more secondary

Our ____ areas are generally undercuts so those areas tend to be relieved

buccal shelf
retromolar pad

ridge areas

retromylohyoid

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We don’t make ____ prosthesis but they can loosen up and then get swallowed

unilateral

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Indications for Temporary PRDP
◼ \_\_\_\_
◼Mastication
◼Space \_\_\_\_
◼Reestablishing occlusal relationships 
◼Conditioning \_\_\_\_ and residual ridges
◼Interim restorations during treatment 
◼Conditioning the \_\_\_\_ for wearing a prosthesis

appearance
maintenance
teeth
patient

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Interim PRDP
◼An PRDP designed to be used for a ____ period until a more definitive prosthesis can be fabricated

◼Conventional interim PRDP
◼ Indicated when age, health or lack of time ____ more definitive treatment

◼Immediate interim PRDP

short

contraindicates

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Transitional PRDP

◼An existing PRDP to which ____ are added as natural ____ are lost

teeth

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Treatment PRDP
◼An existing PRDP used for
--◼\_\_\_\_ the supporting soft tissues
--◼determining \_\_\_\_
--◼determining a new \_\_\_\_

conditioning
OVD
occlusal relationship

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In the 60s, 13% were edentulous as young as 18, and 55% as young as 65 but now it is ____%. So you will still be asked to make a lot of partials for people

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Six Phases of PRDP Service

Patient ____
____, Treatment planning, Design, Treatment sequencing & Mouth Preparation
____ for Distal Extension Denture Bases
Establishment and Verification of ____ and ____
____ Procedures
____

education
diagnosis
support
occlusal relations
tooth arrangements
insertion
recall

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Patient Education
◼Begin educating when discussing treatment options
◼Inform patient about
◼____ of PRDP
◼Proper ____ of prosthesis ◼Proper ____ habits
◼Emphasize importance of ____ appointments
◼Give ____ information

benefits
use
oral hygiene
recall
written

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Diagnosis, Treatment planning, Design, Treatment sequencing and Mouth Preparation

◼Medical and dental \_\_\_\_
◼\_\_\_\_ oral exam 
◼ Caries
◼ Condition of existing restorations
◼ Periodontal health
◼ Responses of teeth to previous stress 
◼ Vitality of remaining teeth

◼____ diagnostic casts
◼ Evaluation of the occlusal plane, arch form and occlusal relations of
the remaining teeth

◼____ design
◼____ of a treatment plan
◼ Sequencing of mouth preparation

histories
clinical and radiographic
mounted
PRDP
sequencing

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The Dental Surveyor
◼Used during ____
◼Instrumental in diagnosing and guiding the appropriate tooth preparation and verifying that the mouth preparations have been performed correctly

treatment planning

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Surveying Accessories

Part of it has an ____ rod that allows you to look at the model in one plane

We have led or graphite that puts contour marks on

Also have ____ gages

Also have a little knife that cuts wax

analyzing

undercut

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Abutment

◼A tooth, a portion of a tooth, or a portion of an implant that serves to ____ and/or ____ a prosthesis

support

retain

The height of contour

◼A line encircling a tooth, designating its greatest ____ at a selected position determined by a dental surveyor

circumference

Undercut

◼That portion of a tooth that lies between the ____ and the ____

height of contour

gingiva

Support for Distal
Extension Denture Bases

◼The best possible support is provided when the soft tissue in the primary supporting area is recorded under some ____ so that the base may be made to fit the form of the ridge when under function
◼This minimizes the ____ forces to the abutment teeth
◼Altered cast impression technique- selective placement of pressure to the ____ stress-bearing area

loading
torquing
primary

Establishment and Verification of Occlusal Relations and Tooth Arrangements

◼The ____ records should be completed ____ the PRDP framework has been returned to the dentist, its fit to the abutment teeth and opposing occlusion have been verified and corrected and an altered cast impression has been made

MMR

after

Insertion Procedures

◼Ensure excellent ____ of the prosthesis
◼Ensure occlusal ____
◼Reinforce ____ instructions
◼Understand about expectations in the ____ phase

fit
harmony
home care
adjustment

Direct Retainer
◼Any type of clasp, attachment, device, etc. used for the ____, stabilization, or ____ of a prosthesis
◼ Intracoronal direct retainer
◼ Extracoronal direct retainer (clasp)
◼Resists the ____ displacement (removal) of the PRDP from the abutment teeth

fixation
retention
vertical

Major Connector | ◼The part of a PRDP that connects the components on ____ side of the arch to the components on the ____ side of the arch

one | opposite

Maxillary Major Connectors ◼Single palatal ____ (posterior palatal bar) ◼Single palatal ____ (posterior palatal strap) ◼____ (U-shaped) palatal strap (anterior palatal strap) ◼____ palatal strap ◼Complete ____ plate

``` bar strap horseshoe antero-posterior palatal ```

``` Mandibular Major Connectors ◼ ____ bar ◼ ____ bar ◼ ____ plate ◼ ____ bar (Kennedy bar; Double lingual bar; Cingulum bar) ◼ ____ bar ```

``` lingual sublingual ligual continuous labial ```

Minor Connectors  “the connecting link between the ____ or base of a PRDP and the other ____ of the prosthesis (such as the clasp assembly, indirect retainers, and rests)

major connector | units

Functions of Minor Connectors 1. To transfer ____ stress to the abutment teeth 2. To ____ the effect of the retainers, rests, and stabilizing components to the rest of the denture

functional | transfer

Types of Minor Connectors ◼ Join a ____ to the major connector ◼ Join an ____ or a secondary rest to the major connector ◼ Join the ____ to the major connector ◼ Serve as an ____ for a vertical projection or bar-type clasp

clasp assembly indirect retainer denture base approach arm

Rests and Rest Seats Rest:  “a rigid extension of a PRDP which contacts a remaining tooth in a prepared rest seat to transmit ____ forces” Rest Seat:  “the prepared recess in a tooth or restoration created to receive the ____, incisal, cingulum, or lingual rest” (GPT, 1999)

vertical | occlusal

Rests: Primary Purpose ◼Provides ____ for the PRDP ◼Directs and distributes occlusal loads apically down the ____ of the abutment teeth (absorbed by ____)

vertical support long axis PDL fibers

``` Three Forms Of Rests ◼Occlusal Rest --◼ ____ --◼ ____ --◼ ____ ```

conventional extended overlay

Three Forms ◼Lingual Rest --◼ ____ --◼ ____ ◼____ Rest

cingulum ball incisal

Conventional Occlusal Rest ◼Forces are directed apically down the ____ of the tooth ◼ (absorbed by ____ fibers) ◼____ ◼ prevents injury and over displacement of underlying soft tissue ◼Maintains retentive clasp in proper ____

long axis PDL vertical stop position

Primary and Secondary Rests ◼Primary rest ◼component of direct ____ ◼Secondary rest ◼additional rests used for indirect ____ or extra support ◼used in ____ extension PRDP

retainer unit retention distal

Proximal Plate A rigid extension from the ____ which contacts the ____ surface of an abutment tooth

major connector or base | proximal

Indirect Retainer  “The component of a PRDP that assists the direct retainer (s) in preventing displacement of the distal extension denture base by functioning through ____ action on the opposite side of the ____ when the denture base moves away from the tissues in pure rotation around the fulcrum line” (GPT, 1999)

lever | fulcrum line

PRDP Base | ◼Supports the artificial teeth and transfers ____ to the supporting structures

occlusal forces

Three Types of PRDP Bases All acrylic resin base ◼ Seen in most ____ partial prosthesis ◼ The fit is never as ____ as a cast metal denture base ◼ ____ is more complicated ◼ ____ resin (lucitione 199) is the most commonly used resin and comes in a variety of shades ◼ May or may not be retained with clasps Metal base ◼ Gold or chrome-cobalt ◼ Teeth are attached by means of ____, loops or beads Combination of acrylic resin and metal base ◼ ____ adjusted, relined and rebased

temporary accurate oral hygiene PMMA posts easily

Artificial Teeth ◼Prevent further disorganization of the dental arch ◼Restore masticatory efficiency ◼Restore and maintain ____ ◼Restore appearance ◼ Intraoral and extraoral ◼Improve ____

OVD | phonation

Clasp Assembly ◼ That part of an PRDP that acts as a ____ and/or ____ for a prosthesis by partially encompassing or contacting an abutment tooth

direct retainer | stabilizer

Clasp Assembly ◼ Retentive clasp arm ◼ provides ____; engages an undercut ◼ Reciprocal (stabilizing) clasp arm ◼ Resists ____ applied by retentive clasp arm ◼ Rest ◼ Occlusal; incisal; lingual ◼ Prevents ____ movement of clasp assembly ◼ Minor connectors ◼ the connecting link between the base of the PRDP and the ____

retention lateral force cervical clasp assembly

``` Fi xed vs PRDP: When to use PRDP? Edentulous span too ____ for FDP Significant alveolar ridge ____ and mid third of face must be supported ____ andother maxillofacial defects Ver y ____ patient Finances ```

long loss cleft palate young