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Index
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RPDDNT2
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PRELIMS
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COMPONENTS 2
level: COMPONENTS 2
Questions and Answers List
level questions: COMPONENTS 2
Question
Answer
Connects the part of the prosthesis located on one side with those on the opposite side
MAJOR CONNECTOR
Provides cross-arch stability to help resist the displacement of the denture by functional stresses
MAJOR CONNECTOR
Unifies the components of the RPD
MAJOR CONNECTOR
MANDIBULAR MAJOR CONNECTORS: If sufficient bracing and indirect retention can be provided by clasps and indirect retainers
Lingual Bar
MANDIBULAR MAJOR CONNECTORS:If future additions of prosthetic teeth to the framework are note anticipated
Lingual Bar
MANDIBULAR MAJOR CONNECTORS:Diastemas or open cervical embrasures of anterior teeth; Overlapped anterior teeth
Lingual Bar
MANDIBULAR MAJOR CONNECTORS: contra- Only few remaining anterior teeth that provides reference for fitting and indirect retention
Lingual Bar
MANDIBULAR MAJOR CONNECTORS: contra - Lingually inclined teeth; An undercut lingual alveolar ridge
Lingual Bar
MANDIBULAR MAJOR CONNECTORS: contra - Parallel or sloped anterior lingual alveolar contour
Lingual Bar
MANDIBULAR MAJOR CONNECTORS:Covers minimal surface of teeth and tissues; periodontal disease and caries is minimal; Relatively small and inconspicuously located; Minimally interferes with function
Lingual Bar
MANDIBULAR MAJOR CONNECTORS:Not as rigid as lingual plate, sublingual bar, or lingual bar with cingulum bar; Framework goes from thick, thin, and thick again, which is structurally complicated; may cause weak areas in the casting; Difficult to add additional teeth to framework
Lingual Bar
Lingual Bar: pattern
6-gauge, half-pear shape wax
MANDIBULAR MAJOR CONNECTORS:Only a few remaining anterior teeth (same with lingual bar);
Linguoplate
MANDIBULAR MAJOR CONNECTORS:Undercut or parallel lingual alveolar ridge; _____ should be at least 3mm inferior to the marginal gingiva
Linguoplate
MANDIBULAR MAJOR CONNECTORS:Distal extension cases with parallel or sloped lingual alveolar ridges where a lingual bar would rotate into the ridge when base rotates tissueward
Linguoplate
MANDIBULAR MAJOR CONNECTORS:Mandibular tori or exostoses exists which must not be covered and cannot be surgically removed; relief is provided to torus; Scallop shape, following the shape of remaining tooth structure
Linguoplate
MANDIBULAR MAJOR CONNECTORS: contra - When a lingual bar may be used
Linguoplate
MANDIBULAR MAJOR CONNECTORS: contra - Overlapped anterior teeth where the undercuts in the area of the superior edge of the plate cannot be removed
Linguoplate
MANDIBULAR MAJOR CONNECTORS: contra - Lingually inclined teeth; Diastemas, unless the lingual plate can have slots in it to avoid display of metal
Linguoplate
MANDIBULAR MAJOR CONNECTORS: contra - Open cervical embrasures where the plate would be visible
Linguoplate
MANDIBULAR MAJOR CONNECTORS:More rigid than lingual bar; Metallurgically and structurally simple
Linguoplate
MANDIBULAR MAJOR CONNECTORS:Easy to add additional prosthetic teeth to the framework; May prevent supraeruption of the teeth it contacts
Linguoplate
MANDIBULAR MAJOR CONNECTORS:Bracing and indirect retention can be provided by clasps and indirect retainers and future additions of prosthetic teeth are not anticipated
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS:Severely undercut lingual alveolar ridges
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS:Distal extension RPD situations with sloped or parallel lingual alveolar ridges where a lingual bar would rotate into lingual alveolus
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS:Diastemas and open cervical embrasures of anterior teeth; Overlapped anterior teeth; Intolerance to other lingual major connector
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS: contra - Where a lingual bar or lingual plate will suffice
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS: contra - Situations where bracing and/or indirect retention must be provided by contact of the major connectors with the teeth
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS: contra - Situations where future additions of prosthetic teeth are anticipated
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS:Does not contact anterior tooth or lingual alveolus; More esthetic than other lingual major connectors because of its location; More rigid than lingual bar because bulk of metal is horizontal rather than vertical
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS:Requires border molded impression of floor of mouth for accurate placement of major connector; Difficult to add prosthetic teeth
Sublingual Bar
MANDIBULAR MAJOR CONNECTORS:Situations where the major connector must contact the natural teeth to provide bracing and indirect retention and there are open cervical embrasures which contraindicate the use of a lingual plate
Lingual Bar with Cingulum Bar
MANDIBULAR MAJOR CONNECTORS:Must have adequate space for the lingual bar portion of the major connector
Lingual Bar with Cingulum Bar
MANDIBULAR MAJOR CONNECTORS:More rigid than lingual ; Covers less tooth and tissue surface than lingual plate
Lingual Bar with Cingulum Bar
MANDIBULAR MAJOR CONNECTORS:Very complex design; May be objectionable to patient because there are four edges exposed to the tip of the tongue
Lingual Bar with Cingulum Bar
MANDIBULAR MAJOR CONNECTORS:Height of activated lingual frenum and floor of mouth is at the same level as marginal gingiva; Inoperable tori or exostoses at the same level as the marginal gingiva
Cingulum Bar
MANDIBULAR MAJOR CONNECTORS:Severely undercut lingual alveolus; Concern that a major connector traversing the gingival sulcus will cause a periodontal problem
Cingulum Bar
MANDIBULAR MAJOR CONNECTORS: contra - Diastemas and open cervical embrasures where the metal will show
Cingulum Bar
MANDIBULAR MAJOR CONNECTORS: advan - Does not traverse the marginal gingiva or overlay the lingual alveolus; Easy to add prosthetic teeth to framework
Cingulum Bar
MANDIBULAR MAJOR CONNECTORS:Must be bulky to have sufficient rigidity and thus may be objectionable to the patient
Cingulum Bar
MANDIBULAR MAJOR CONNECTORS:Lingually inclined teeth preventing the use of a lingual mandibular major connector
Labial Bar
MANDIBULAR MAJOR CONNECTORS: Lingual tori or exostoses which cannot be removed surgically; avoided and covered by the framework with adequate relief
Labial Bar
MANDIBULAR MAJOR CONNECTORS:When other lingual major connectors cannot be used because of the slope or undercut of the lingual alveolus
Labial Bar
MANDIBULAR MAJOR CONNECTORS:The patient cannot tolerate a lingual major connector; Diastemas and open cervical embrasures contraindicating a lingual plate
Labial Bar
MANDIBULAR MAJOR CONNECTORS:connector is longer, and therefore must be wider or thicker to provide the necessary rigidity
Labial Bar
MANDIBULAR MAJOR CONNECTORS:may be visible when the patient smiles and may distort lip contour resulting in poor esthetics; Difficult to add prosthetic teeth to framework
Labial Bar
MAXILLARY MAJOR CONNECTORS: indications Single Palatal Strap
Class III or Class III mod 1 RPD
MAXILLARY MAJOR CONNECTORS: contra - Extremely long tooth-supported edentulous space
Single Palatal Strap
MAXILLARY MAJOR CONNECTORS:Very simple design, Very few metal-tissue edges
Single Palatal Strap
MAXILLARY MAJOR CONNECTORS:covers a considerable portion of the palate
Single Palatal Strap
MAXILLARY MAJOR CONNECTORS:Class III or Class III mod 1 cases with a long span edentulous space; An inoperable palatal torus
Combination Anterior and Posterior Palatal Strap-type Connector
MAXILLARY MAJOR CONNECTORS:Class I or Class II cases where adequate support, retention, bracing, and direct-indirect retention may be obtained from contact of the denture base with the ridge and the contact of the framework with the palate
Combination Anterior and Posterior Palatal Strap-type Connector
MAXILLARY MAJOR CONNECTORS:covers a minimum area of palatal tissue but Very complex design
Combination Anterior and Posterior Palatal Strap-type Connector
MAXILLARY MAJOR CONNECTORS:Class I edentulous arch where maximum utilization of the palate is indicated for support, bracing, retention, and direct-indirect retention
Palatal Plate-type Connector
MAXILLARY MAJOR CONNECTORS:contra - when less than complete palatal coverage is necessary and there are sufficient remaining natural teeth to use a strap major connector
Palatal Plate-type Connector
MAXILLARY MAJOR CONNECTORS:Maximum support, retention, bracing, and direct-indirect retention from the palate; Few metal tooth edges; Easy to add prosthetic teeth to framework
Palatal Plate-type Connector
MAXILLARY MAJOR CONNECTORS:Covers more tooth and tissue surface than any major connector; Difficulty in designing
Palatal Plate-type Connector
MAXILLARY MAJOR CONNECTORS:Least desirable major connector; somewhat flexible; Used in inoperable tori
U-shaped Palatal Connector
MAXILLARY MAJOR CONNECTORS:Class III or Class III mod 1 arch with an anterior edentulous space, where cross-arch force distribution is not important; Class IV arch
U-shaped Palatal Connector
MAXILLARY MAJOR CONNECTORS:Fewer metal-tooth or tissue edges than AP type
U-shaped Palatal Connector
MAXILLARY MAJOR CONNECTORS:Tooth-bound cases when 2nd premolar or first molars are missing
Single Palatal Bar
"MAXILLARY MAJOR CONNECTORS:; Disadvantages Should be bulky to maintain rigidity (less acceptable by the patient); Drives little support from the bony palate"
Single Palatal Bar
MAXILLARY MAJOR CONNECTORS:Class I and Class II edentulous arches in which excellent abutment and residual ridge support exists
Anterior-Posterior Palatal Bars
MAXILLARY MAJOR CONNECTORS:Cases without the need for support from whole palate and without the need for indirect retention
Anterior-Posterior Palatal Bars
MAXILLARY MAJOR CONNECTORS:Long edentulous spans in Class II mod 1 arches; Class IV arches
Anterior-Posterior Palatal Bars
MAXILLARY MAJOR CONNECTORS:Inoperable palatal tori that do not extend posteriorly to the junction of the hard and soft palate
Anterior-Posterior Palatal Bars
Connecting link between major connector, base of the RPD, and the other components of a prosthesis
MINOR CONNECTOR
It retains the denture base; contacts the guiding planes or proximal plates
MINOR CONNECTOR
Vertical Minor Connectors:Must have at least____ distance between 2 minor connectors
5mm
Vertical Minor Connectors:Must meet the major connector at
right angle
Vertical Minor Connectors:Located on ____
embrasure area
Vertical Minor Connectors:Should conform to the _____
interdental embrasure
Vertical Minor Connectors:Thickest towards the ____ and tapering towards the contact area
lingual surface
Horizontal Minor Connectors:Extends just a little on the buccal side from the crest of the ridge; 1 to 2mm
Ladder type
Supports artificial teeth
DENTURE BASE
Receives the functional stresses from occlusion
DENTURE BASE
Transfers functional forces to oral structures
DENTURE BASE
Adds to the cosmetic effect of the denture
DENTURE BASE
OTHER PARTS OF RPD: Proximal plates-Thickest towards the ____
cervical area
OTHER PARTS OF RPD: Proximal plates-shape
triangular
OTHER PARTS OF RPD: Proximal plates-Height is ___ of the length of the crown – found at the greatest circumference of the tooth
2/3
OTHER PARTS OF RPD: Proximal plates-Width is__ of intercuspal distance
1/2
OTHER PARTS OF RPD:Integral part of the minor connector
Tissue stops
OTHER PARTS OF RPD:Only seen in distal extension cases
Tissue stops
"OTHER PARTS OF RPD: Lessens movement of acrylic when pressed against the minor connector"
Tissue stops
OTHER PARTS OF RPD:Provides stability of the denture framework during processing
Tissue stops
OTHER PARTS OF RPD:Prevents distortion of framework during processing; stabilizes the minor connector in the area
Tissue stops
OTHER PARTS OF RPD:Can engage buccal and lingual stops for stability
Tissue stops
OTHER PARTS OF RPD:Marks the end of the denture base
Finish lines
OTHER PARTS OF RPD:Junction between the minor connector and the major connector
Finish lines
COMPONENTS OF CLASP ASSEMBLY:Part of the clasp that lies on the occlusal, lingual, or incisal surface of an abutment tooth
Rest
COMPONENTS OF CLASP ASSEMBLY:Resists tissueward movement of the clasp
Rest
COMPONENTS OF CLASP ASSEMBLY:Part of the clasp that connects the rest and the shoulder of the clasp to the minor connector
Body of the Clasp
COMPONENTS OF CLASP ASSEMBLY:Part of the clasp that connects the body to the clasp arms
Shoulder
COMPONENTS OF CLASP ASSEMBLY:Must lie above the height of contour; Must provide some stabilization against horizontal displacement
Shoulder
COMPONENTS OF CLASP ASSEMBLY:a rigid clasp arm placed above the height of contour; usually on the lingual aspect of the tooth, opposite to the retentive arm
Reciprocal Arm
COMPONENTS OF CLASP ASSEMBLY:functions to counteract or oppose the lateral forces and stresses that are exerted by the retentive arm
Reciprocal Arm
COMPONENTS OF CLASP ASSEMBLY:A rigid clasp arm placed above the height of contour; buccal
Retentive Arm
COMPONENTS OF CLASP ASSEMBLY:Terminal end of the clasp arm
Retentive Terminal (Terminal End)
COMPONENTS OF CLASP ASSEMBLY:Only component of the RPD that lies apical to the height of contour; engages the useable undercut
Retentive Terminal (Terminal End)
COMPONENTS OF CLASP ASSEMBLY:Possess a certain degree of flexibility and offers direct retention
Retentive Terminal (Terminal End)
COMPONENTS OF CLASP ASSEMBLY:Part of the clasp that joins the body of the clasp to the major connector
Approach Arm
COMPONENTS OF CLASP ASSEMBLY:Component of a bar clasp; Minor connector that runs horizontally along the mucosa and turns vertically to cross the gingival margin
Approach Arm
COMPONENTS OF CLASP ASSEMBLY:Approaches the undercut of the abutment tooth from a gingival direction (upwards)
Approach Arm