Cementation Fixed Prosthesis Flashcards
How are fixed bridges classfied?
By type of retention on abutment teeth
What are types of retention for fixed bridge?
Mechanical
Adhesive
What to do when trying bridge?
- Check lab work
- Check condition of temporary bridge and remove
- Clean abutment
- Try in bridge
- Assess for modification
- Adjust if needed
How to assess the lab work prior to trying in?
Match prescription - shape, shade, aesthetic, contour, margin
Any fabrication issues
Check bridge fit in model - assess marginal fit
Check occlusion of casts
Why should you evaluate the temporary bridge?
Check any wear/loss - drifting of abutments
Did pt have any issue w/ provisional
How to remove temporary direct restoration?
Use crown and bridge removal forceps
Adding vaseline to temp bond can make removal multiple units easier
Should provide LA to remove temp?
Ideally not
Speech/ smile best assessed w/o LA
But if tooth vital may be uncomfortable
How clean abutment teeth?
Clean w/ pumice or prophy paste
Take care with soft tissue
Ensure no temporary cement left
What can be used to clean margins?
Op clean rotary tips
How check proximal contacts?
Use floss
What are signs have correct seating of bridge?
Retainer crown margin closed Adjacent marginal ridge level Initial occlusal satisfactory Firm stop when seated No rocking under lateral load
What features should check for satisfactory aesthetics?
Shade Position Size and shape Proportion Contour Symmetry
How check speech?
F and V = incisal edhe
T and S = cingulu,
‘th’ = air escape under potic
How to do occlusal check?
Check lateral and protrusive contacts w/ diff colour to distinguish ICP contact
Adjust non-ICP contacts
Ideal properties of cement?
High compressive/ tensile strength Low viscosity Long working time - quick set Cariostatic Radiopaque Low solubility Biocompatible Adhesion tooth and restoration
