COMPONENTS Flashcards
RIGID COMPONENT OF RPD WHICH RESTS IN A RECESSED PREPARATION ON THE OCCLUSAL, LINGUAL OR INCISAL SURFACE FOR VERTICAL SUPPORT
Rest
REST PLACED ON OCCLUSAL SURFACE OF PREMOLAR AND MOLAR
Occlusal Rest
REST PLACED ON CINGULUM OF ANTERIOR TOOTH USUALLY CANINE
Lingual or Cingulum rest
REST PLACED ON ANTERIOR TOOTH AT INCISAL EDGE
Incisal Rest
REST CONSISTING OF PRECISION MANUFACTURED ATTACHMENT THAT ARE PLACED WITHIN THE CORONAL CONTOUR OF CROWN OR RETAINER
Intracoronal/Precision rest
PORTION OF TOOTH SELECTED AND PREPARED TO RECEIVE AN OCCLUSAL, INCISAL OR LINGUAL REST
Rest seat
MOST COMMONLY USED MANDIBULAR MAJOR CONNECTOR
Lingual bar
LINGUAL BAR OCCLUSO GINGIVAL WIDTH? THICKNESS? SUPERIOR BORDER POSITION? INFERIOR BORDER POSITION?
Occluso-gingival width = 4-6mm
Thickness = 1.5 - 2mm
Superior border position = 1.5-2mm (below free gingival margin)
Inferior border position = as low as lingual frenum
MANDIBULAR MAJOR CONNECTOR THAT IS CONSIST OF LINGUAL BAR AND AN EXTENSION OVER CINGULA OF ANTERIOR TEETH
Lingual plate
MANDIBULAR MAJOR CONNECTOR CONSIST OF LINGUAL BAR PLUS A SECONDARY BAR ABOVE THE CNGULA OF THE ANTERIOR TEETH
Continuous Bar/ Kennedy Bar/ Double Lingual Bar
MANDIBULAR MAJOR CONNECTOR WHERE EXTREME LINGUAL INCLINATION OF REMAINING TEETH IS PRESENT AND INTERFERES WITH TONGUE MOVEMENT
Labial bar
MAXILLARY MAJOR CONNECTOR SHOULD TERMINATE ____mm FROM THE GINGIVAL CREST TISSUES
4mm or more
MAXILLARY MAJOR CONNECTOR THAT PROVIDES MAXIMUM RIGIDITY AND MINIMUM BULK
Anterior Posterior Palatal Strap
MAXILLARY CONNECTOR THAT IS INDICATED WHEN MAXIMUM TISSUE SUPPORT IS REQUIRED OR FOR LONG DISTAL EXTENSION CASE OR WHEN SIX OR LESS ANTERIOR TEETH REMAINS
Full palatal plate
MAXILLARY CONNECTOR USED IN TOOTH SUPPORTED CASES BUT IS NOT TO BE USED INVOLVING DISTAL EXTENSION OR REPLACEMENT OF ANTERIOR TEETH
Palatal bar
MAXILLARY MAJOR CONNECTOR THAT HAVE A BROADER AREA OF CONTACT AND PREFERABLE THAN PALATAL BAR FOR POSTERIOR TOOTH SUPPORTED CASE
Palatal strap
A POOR MAXILLARY MAJOR CONNECTOR AND IS ONLY PRESCRIBED IF TORUS PALATINUS IS PRESENT AND PROHIBITS THE USE OF OTHER CONNECTOR
Anterior palatal plate/U shape/Horse shoe palatal connector
IT IS THE ABILITY OF AN RPD TO RESIST DISLODGING FORCES DURING FUNCTION
Retention
THIS RETENTION IS OBTAINED BY PLACING PORTIONS OF PARTIAL DENTURE INTO TOOTH OR SOFT TISSUE UNDERCUTS. USUALLY DERIVED FROM THE USE OF DIRECT RETAINERS
Mechanical retention
TWO CLASSES OF MECHANICAL RETENTION
Intracoronal retainer
Extracoronal retainer
A CLASS OF MECHANICAL RETENTION THAT ARE ARE MECHANICAL DEVICES SET INTO A CASTING OF A FULL CROWN. ALSO CALLED PRECISION ATTACHMENTS
Intracoronal Retainer
A MECHANICAL RETENTION THAT ENGAGES AN EXTERNAL SURFACE OF AN ABUTMENT IN A NATURAL UNDERCUT OR PREPARED PREPARATION
Extracoronal retainer
WHAT ARE THE TWO MAIN CLASSES OF CLASPS
Suprabulge retainer
Infrabulge retainer
CLASP THAT APPROACH THE UNDERCUT FROM ABOVE THE HEIGHT OF CONTOUR
Suprabulge retainer
CLASP THAT APPROACH THE UNDERCUT FROM BELOW THE HEIGHT OF CONTOUR
Infrabulge retainer
THE MOST SIMPLE AND VERSATILE CLASP. CLASP OF CHOICE IN TOOTH BORNE CASES
Circumferential/circle/akers clasp
CLASP THAT ENCIRCLES NEARLY THE ENTIRE ABUTMENT TOOTH. USUALLY USED WITH MESIALLY AND LINGUALLY TILTED MANDIBULAR MOLAR
Ring clasp
CLASP USED WHERE NO EDENTULOUS AREA EXIST OR WHERE DISTAL APPROACH CLASP CANNOT BE USED ON MOST POSTERIOR TOOTH. IT IS CONSIST OF 2 RESTS, 2 RETENTIVE ARMS AND 2 BRACING ARMS
Embrasure/double akers clasp
DIRECT RETAINERS USED FOR TOOTH BORNE RPD
Circumferential clasp
Ring clasp
Embrasure clasp
C clasp
DIRECT RETAINER USED FOR TOOTH AND TISSUE BORNE RPD
Bar clasp / RPI
RPA clasp
Combination clasp
THIS AXIS PASSES THROUGH REST OF THE MOST POSTERIOR ABUTMENT TEETH
Fulcrum line
MOST COMMON DENTURE BASE FOR RPD
Acrylic resin base
ALTERANTIVE DENTURE BASE IF ACRYLIC IS NOT APPLICABLE. HOWEVER, ESTHETIC RESULT CAN BE COMPROMISED
Metal base
DENTURE BASE THAT CANNOT BE RELINED AND IS NOT USED FOR TOOTH TISSUE BORNE REPD
Metal base
