SDA Flashcards Preview

FRP - Crowns/Bridges/Wear/TMD/SDA/IMPLANTS > SDA > Flashcards

Flashcards in SDA Deck (9)
Loading flashcards...
1

What is the SDA concept

Lack of posterior teeth
-satisfactory oral function without RPD
-anterior/premolar dentition
-

2

how many occlusal units are acceptable for SDA

3-5 units per quadrant
-1 occ unit - pair of occluding premolars
-2occ units - pair of occluding molars

3

what can SDA provide for a patient

sufficient oral function and comfort
-sufficient mandibular stability

4

INDICATIONS for SDA

-missing posterior teeth with3-5occ u left
-sufficient occ contact
-favourable prognosis of remaining teeth
-patient not motivated to continue with treatment plan
-limited financial availability

5

CONTRAIND for SDA

-poor remaining dentition prognosis
-untreated/advanced perio disease
-pre-existing TMD
-signs of pathological toothwear
-severe maloccusion - class2/3

6

examination for SDA

-History/signs of TMD(usual stuff)/skeletal relationship
-signs of bruxism/toothwear
-periodontal assessment
-poor prognosis
-occlusal eval

7

negative aspects of a perio assessment
-what does perio cause in SDA patients

drifting teeth/loss of alveolar bone/loss of space
-causes distal tooth migration

8

what are the 5 requirements of occlusal stability

-stable contact of all teeth of equal intensity in CR
-anterior guidance
-disclusion of all posterior teeth in protrusive movement
-disclusion of posterior teeth on NW side during lateral movement
-disclusion of posterior teeth on working side in lateral movement

9

How can an SDA be extended

distal cantilever
conventional bridgework
RPD
Implant