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Partial Denture 2

Create an educational and visually appealing illustration related to removable partial dentures, focusing on their anatomy, design, and components, using a color palette that is soft and professional.

Partial Denture Quiz: Test Your Knowledge

Welcome to the Partial Denture quiz! This comprehensive quiz includes 76 questions designed to evaluate your understanding of removable partial dentures and their components. Whether you're a student, a dental professional, or simply interested in dental health, this quiz will challenge your knowledge and enhance your learning.

Key Features:

In-depth questions covering various aspects of removable partial dentures.
Perfect for students and professionals in the dental field.
A great way to reinforce your learning and knowledge of dental anatomy.

76 Questions19 MinutesCreated by LearningSmile351

Indirect retainer:

assists direct retainer

resists lever action

prevents displacement of RPD

maintains all of the above

Rest:

is placed on rest seat always

need not have rest seat

mainly offers stability

is placed on rest seat always and mainly offers stability

N removable partial denture, health of gingival tissue is ensured by:

keeping minimum of 6 mm distance for major connector

keeping minimum of 4 mm distance for major connector

keeping minimum of 6 mm distance for major connector and keeping minimum of 4 mm distance for major connector

minor connectors joining major connector at <90>

Method to determine height of floor of the mouth is:

use of periodontal probe

use of straight probe

use of individualized impression tray

use of periodontal probe and use of individualized impression tray

Sublingual bar is placed:

inferior to lingual bar

inferior and posterior to lingual bar

inferior and anterior to lingual bar

inferior to lingual bar and inferior and anterior to lingual bar

A removable partial denture may be :

all tooth support supported

tooth and tissue supported

all tooth support supported and tooth and tissue supported

all tissue supported

Guiding plane are:

usually single

usually multiple

usually parallel

usually single and usually multiple

Contraindication for sublingual bar are following except:

lingual tori

high lingual frenum

large tongue

high elevation of floor of mouth

A continuous bar is otherwise known as:

kennedy bar

cingulum bar

kennedy bar and cingulum bar

linguoplate

Continuous bar lies:

on lingual side of anterior teeth

on cingulum of anterior teeth

on or above cingula of anterior teeth

on incisal third of the lingual side of the anterior teeth

A minor connector located at embrasure should be:

Thinnest toward lingual surface

Tapering away from contact area

Thickest toward buccal surface

Thickest toward lingual surface

. When a minor connector contacts tooth surface on either side of embrasure, it should:

Abruptly end at the tooth

Be sharply angled

Not have space between it and the tooth

All of the above are true

Bulkiest position of a proximal minor connector is towards its:

Buccal side

Centre

Lingual side

Inferior

Angle at junction between major connector and denture base minor connector should be:

> 90 degrees

> 110 degrees

90 degrees

< = 90 degrees

Minor connector for mandibular distal extension will extend unto:

One-third the length of edentulous ridge

Two-third the length of edentulous ridge

Entire length of edentulous ridge

Half the length of edentulous ridge

Minor connector for maxillary distal extension denture base extend unto:

One-third the length of edentulous ridge

Two-third the length of edentulous ridge

Entire the length of edentulous ridge

Half the length of the edentulous ridge

Tissue stops are useful in:

Stabilizing framework during processing

Stops the tissue impingement by tray

Stabilizing framework during processing and Stops the tissue impingement by tray

Engaging buccal slope of the residual ridge

Finishing line junction with major connector should have angle:

=90 degrees

< =90 degrees

> =90 degrees

> 90 degree

Small window in relief wax distal to terminal abutment in distal extension denture base removable partial denture acts as:

Tissue stop

Finishing line

Finishing index tissue stop

Nail head retention

Setting of a RPD may occur due to one of the following reasons, except:

Improper rest design

Flow of amalgam underneath restorations

Giving canine rest seat

Intrusion of abutment

Deepest part of a rest seat is towards:

Disto- buccal line angle

Disto-lingual line angle

Central fossa

Marginal ridge

Marginal ridge for a rest seat should be reduced by at least:

1mm

2mm

1.5mm

3mm

An angle > 90 degrees between rest and its minor connector may result in:

Slippage of prosthesis

More support for prosthesis

Orthodontic correction of the abutment

All are corrects

When rest seals are prepared at inter proximal area on two adjacent teeth:

It should extend for lingually

They avoid wedging by the framework

They do not shunt food

It should extend for lingually and They avoid wedging by the framework

Interproximal occlusal rest seats:

Violate contact points

Extend far lingually

Do not avoid wedging effect by framework

All are corrects

Internal occlusal rests are indicated in:

Tooth tissue supported class I designs

Tooth tissue supported class II designs

Tooth supported class III designs

All distal extension denture base designs

Difference between internal occlusal rest and internal attachment is that:

Internal attachment also provides support

Internal attachment rest also provides retention

Internal attachment rest also provides stabilization

Internal attachment also provides retention

When internal occlusal rests are used, we can use:

Buccal reciprocal arm

Proximal retentive arm

Lingual reciprocal arm

Lingual retentive arm

Advantage of internal occlusal rest are following except:

Provide retention

Eliminates visible clasp arm

Rest seat is located in a more favorable position

Provides support and stabilization

RPD movements away from tissues may occur due to following except:

Pull of food

Moving border tissues

Gravity

Mastication

Vertical tissue ward movement of denture is controlled by following except:

Total amount of occlusal load applied

Retentive tip of the clasp

Accurately fitting denture base

Tissue of residual ridge

Usually rest seats are located at:

The junction of enamel and dentin

Enamel

Dentin

At cement enamel junction

Floor of the cingulum rest seats is placed towards:

Mesial axial wall

Distal axial wall

Cervical end

Incisal end

Approach for a cingulum rest is:

Perpendicular to lingual slope

Horizontal to lingual slope

Parallel to lingual slope

Cervical to lingual slope

Most apical portion of a cingulum rest is:

Mesial corner

Distal corner

Apex of the preparation

Floor of the preparation

Incisal rests:

Mostly used as axillary rests

Mostly used as indirect retainer

Mostly used as axillary rests and Mostly used as indirect retainer

Mostly preferred for maxillary anterior

Disadvantages of incisal rest are following except:

Less esthetic

Unfavorable leverage on teeth

Causes intrusion of anterior teeth

Causes orthodontic movement of teeth

Full incisal rests are indicated in following except:

To provide anterior guidance

To abrade anatomy of teeth

To provide retention

To provide stabilization

Parts that offer support for RPD are following

Rest and reciprocal arm

Rest and retentive arm

Rest and denture base

Rest and minor connector

Retention of RPD is obtained by:

Retaining elements and denture bases

Denture bases and minor connectors

Retaining elements, denture bases and Denture bases and minor connectors

Rests and rest seats

Direct retainers offer:

Primary retention

Mechanical retention

Primary retention and Mechanical retention

Secondary retention

Denture bases of RPD offer:

Primary retention

Mechanical retention

Primary retention and Mechanical retention

Secondary retention

Intracoronal retainer mechanism is:

Engaging the undercut intracoronally

Frictional resistance

Dimpling

Any of the above

Limitations to use of internal attachment are following except:

Size of the pulp

Availability

Clinical crown short

Cost of the prosthesis

Ina ring clasp, the retentive arm extends from:

Principal occlusal rest to the tip

Strut to the tip of the clasp

Secondary occlusal rest to the tip

Entire length of the clasp arm

Supporting strut for ring clasp should be placed on the:

Retentive side of the clasp

Near the retentive terminal

Retentive side of the clasp and Near the retentive terminal

On the non retentive side of the abutment

Undercut at the point of origin of a clasp can be approached by:

Embrasure clasp

Back action clasp

Hair pin clasp

Half and half clasp

Multiple clasps are jointed at:

Tip of retentive terminals

Tip of reciprocal terminals

Back of the occlusal rests

Back of the minor connector

Uses of multiple clasp includes following except:

When additional retention is needed in class III cases

When teeth from entire half of denture arch are missing

In class II modification 1 areas

When only available retentive areas are adjacent to each other

Following are true for I bar clasp, except:

Whole arm of the clasp contacts abutment

Approach arm is located at least 4mm from gingival margin

No more than 2mm of its tip contacts abutment

It is located in the gingival third of buccal or labial surface

Following are true for minor connector of an occlusal rest RPI system, except:

It does not contact adjacent tooth

It is placed into mesiolingual embrasure

It should contact adjacent tooth also

It acts as a stabilizing component

In the following philosophy of RPI system, the functional force is distributed evenly between tooth and tissue:

Where proximal plate contacts entire length of the guiding plane

Where proximal plate extends up to the junction of the middle and gingival third

Where only 1mm of proximal plate contacts guiding plane

Where there is more relief underneath proximal plate

Where bar clasp is indicated

Where there is no buccal or lingual tilt of abutment

Where bar clasp is indicated and Where there is no buccal or lingual tilt of abutment

When undercut is located at the gingival third of tooth away from edentulous area

Bar type configuration of clasps can also be used for:

Stabilization

Reciprocation

Sustentation

Retention

When a survey line is high:

A bar clasp can be given

A circumferential clasp can be given

Circumferential clasp cannot be designed

Bar clasp cannot be given

Infrabulge clasp is a type of::

Akers clasp

Circumferentially approaching clasp

Bar clasp

Ring clasp

Infrabulge clasp is advocated by:

Kennedy

Devan

Applegate

Wills

In an infrabulge clasp, the clasp arm arises either from:

Denture framework

A metal base or framework

Border of metal base

Lingual flange of acrylic or border of metal base

Following parts of a RPD may act as indirect retainer except:

Rests

Proximal plates

Minor connector supporting rests

Retentive tip

In class I distal extension denture base, moving indirect retainer to mesial ridge of I premolar helps in, except one:

Preventing weakening of single rooted anterior teeth

Prevents interference to tongue by the minor connector

Placement of minor connector in embrasure between premolar and canine

Efficient direct retainer

Canine extensions from occlusal rests are used as indirect retainers, except one:

When primary abutment is the I premolar

On prepared surfaces of canines

As the tip of the canine extension acts as resting element

Depend on extension denture base

Lattice pattern is preferable for mesh pattern of minor connector to connect denture base to major connector because:

It gives excellent attachment

Gives bulk to the minor connector

It gives excellent attachment and Gives bulk to the minor connector

It gives excellent attachment while minimizing warping resin bases

Following factors increase effectiveness of indirect retainer, except:

Distance from fulcrum line

Increased flexibility of minor connector used

Supporting tooth surface

Quality of direct retainer

Distance of indirect retainer from fulcrum line is affected by following, except:

Rigidity of the indirect retainer

Location of principal abutment

Length of distal extension base

Location of fulcrum line

For indirect retainer to be effective, most important factor is:

It should cross marginal gingival 90 degrees

It should lie in a flat plane

The approach arm should be most flexible

Principal occlusal rest on direct retainer should be firm on the rest seats

Dislodgement of indirect retainer from its seat when rotation occurs, indicates:

Efficient indirect retainer

Need to reline the distal extension denture base

Efficient indirect retainer and Need to reline the distal extension denture base

Inefficiency of direct retainer

The minimum thickness of resin that embeds the metal framework is:

2mm

1.5mm

1mm

3mm

Requirements of denture base minor connector are following, except:

It should be free of interference for future adjustment

It should have good bulk

Open enough to avoid weakening of attached acrylic

It should not interfere with tooth arrangement

Attachment between porcelain tooth and denture base resin is:

Mechanical

Chemical

Mechanochemical

Adhesion

Attachment between acrylic resin and metal base may be achieved by following:

Nail heads

Retention loops

Diagonal spurs

All are correct

Metal teeth in removable partial denture is indicated when:

Prevention of extrusion of opposing tooth is needed

When space is too limited

Prevention of extrusion of opposing tooth is needed and When space is too limited

Abutment teeth are tilted

Chemical bonding of resin to metal involves following, except:

Silica coating

Resin bonding agent application

Loops and Mesh

Thin layer of acrylic resin over the metal

Manifestations of loss of support for distal extension denture base can be following except:

Loss of occlusion

Lifting of the denture

Lifting of indirect retainer from seats

Rotation of prosthesis around fulcrum line

Best method to check occlusion intraorally to assess relining of RPD is:

Articulating ribbon

Green casting wax

Mylar strips

Acrylic-self cure

Methods to check loss of support for distal extension denture base include following except:

Using free flowing irreversible hydrocolloid under denture base

Applying alternate pressure over the artificial teeth

Allowing tissue rest by removing the RPD

Evidence for heavy occlusal contacts of natural dentition

Following are true for distal extension denture base RPD except:

Metal denture bases can be used

If relining is required, metal denture base can be replaced

Metal denture bases can be used when the tissues are displaced

More resorption occurs at the distal most end of edentulous area

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