Lec 4.2: RPD Measurement Guidelines Flashcards

1
Q

Major Connector:
- Should be ________ placed in relation to the median suture line or median palatine raphe.
- Width:
* Bar =
* Strap = (ant, lat, post)
* Plate =
- Clearance from FGM:
* Mx =
* Md =
- ____ should be present for maxillary cases.
- For APPC, the superior border should follow the ___________.
- For mandibular distal free-end cases, the major connector should only extend ________ to the last natural teeth and ________ towards the edentulous area.

A
  • perpendicularly
  • BAR = 4mm; STRAP = 8-10mm ant, 7-9mm lat, 4-7mm post; PLATE = 9-12mm
  • mx = 6-8mm; md = 3-4mm
  • beading
  • valley of rugae
  • a little distal; slanting
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2
Q

Minor connector:
- Should be ______ attached to the major connector.
- Should be __________ as it approaches the ______.
- Should be located on the _______ or _________.
- Those located proximal to the edentulous area should be made ____________ (proximal plate).
- The base should be _________.
- There should at least be ____ of space between 2 minor connectors; in cases this space could not be achieved, the area should be covered with a _______.

A
  • perpendicularly
  • tapering = occlusal
  • interdental spaces / embrasure spaces
  • wider but thinner
  • rounded
  • 5mm space; plate
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3
Q

Direct retainer:
- Presence of _________.
- Rest should be provided with ________.
- There should be at least ___ of thickness of metal in the junction between a rest and minor connector.
- Should be one _______ (tapering) and oppose by a ________ (equal width).
- Flexible 3rd of the retentive arm should be located _____ the survey line.
- Reciprocal arm should be placed ______ the survey line.

A
  • rest seat preparation
  • occlusal anatomy
  • 1.5mm metal
  • retentive arm; reciprocal arm
  • below
  • above
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4
Q

Direct retainer:
- Clasp arm should engages more than _____ degrees of tooth circumference.
- Follow the __________ for strategic location of abutment to minimize stress control.
- For circumferential clasp: clasp arm should be placed at the _______________ and NEVER on the ______.
- I-bar approach arm should be ______ to the pre-gingival margin.

A
  • > 180 degrees
  • polygon of support
  • junction of middle and gingival 1/3; never on the occlusal 3rd
  • parallel
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5
Q

For I-bar clasp:
- Superior border of the approach arm should be located ____ from the FMG.
- Minimum vestibular depth of _____ during function is required.
- Vertical portion of the approach arm should be located at least _____ from adjacent / other vertical components.

A
  • 3-4mm
  • 5mm
  • 5mm
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6
Q

Proximal plate:
- For distal free-end cases: should extend ____ just fat enough so that otgether with the mesial rest, it will provide adequate encirclement to prevent lingual movement of abutment tooth.
- Should be ____ in thickness.
- Contacts _______ of the proximal.
- Extension guidelines? (5)

A
  • lingually
  • 1-1.5mm
  • 1mm guiding plane
  • Extension guidelines:
    (1) Buccal cusp tip
    (2) Proximolingual line angle
    (3) Contact point
    (4) Incisal line angle
    (5) Anterior lingual contour
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7
Q

DBRE:
- Maxillary distal free-end: DBRE should extend to the ________ to cover maxillary tuberosity.

  • Maxillary cases: EFL should be located ______ below gingival margin.
  • Mandibular cases: EFL should be located _____ below FGM.
  • Strut should be located in between _______ and ____ horizontally.
  • For tooth-bounded edentulous area: EFL should extend from?
A
  • entire edentulous ridge
  • 2-3mm
  • 3mm
  • artificial teeth; 2mm
  • from one minor connector to the other minor connector
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