Lec 4.2: RPD Measurement Guidelines Flashcards
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.
- 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
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 _______.
- perpendicularly
- tapering = occlusal
- interdental spaces / embrasure spaces
- wider but thinner
- rounded
- 5mm space; plate
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.
- rest seat preparation
- occlusal anatomy
- 1.5mm metal
- retentive arm; reciprocal arm
- below
- above
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.
- > 180 degrees
- polygon of support
- junction of middle and gingival 1/3; never on the occlusal 3rd
- parallel
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.
- 3-4mm
- 5mm
- 5mm
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)
- 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
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?
- entire edentulous ridge
- 2-3mm
- 3mm
- artificial teeth; 2mm
- from one minor connector to the other minor connector