Wax and Provisional Flashcards
Elements used as part of a \_\_\_\_\_\_\_\_: -A full health history -Intra-oral examination of patient -Diagnostic Casts (mounted) -Occlusal Evaluation -Esthetic evaluation – Primarily for anterior FPD work. However, should also be considered for posterior work as well.
Diagnostic Wax up
Diagnostic Waxing – Systemic Approach
Initial diagnostic casts are made along with discussion about patient
restorative and esthetic goals
Step 1
Diagnostic Waxing – Systemic Approach
Diagnostic wax up of these goals is made and includes:
-Pontic shape, size, contour, and relation to the ridge
-Incorporate any changes to the current esthetics and function
Step 2
Diagnostic Waxing – Systemic Approach
This wax up then can be used with a putty matrix to make a temporary
which incorporates these desired changes
Step 3
Diagnostic Waxing – Systemic Approach
Tooth preparation and temporization
Step 4
Diagnostic Waxing – Systemic Approach
Patient returns with temporaries in place and provides feedback on the
shape, length, and overall esthetics and function. Any changes to
the temporary desired by you or the patient can then be made at
this time.
Step 5
Diagnostic Waxing – Systemic Approach
Once temporaries are representing desired results, a new impression is
made of the temporaries to provide to the lab. Photographs of the
temporaries with measurements are provided for the lab.
Step 6
Diagnostic Waxing – Systemic Approach
FPD created from a final impression, and using the models of your
temporaries. Definitive prosthesis is tried in and seated.
Step 7
Diagnostic Waxing – Systemic Approach
Evaulation of final product after patient has had prosthesis for a period
of time.
Step 8
A prosthesis designed to enhance esthetics, stabilization and/or function for a limited
period of time after which it is to be replaced by a definitive prosthesis.
Used to assist in determination of the effectiveness of a specific treatment plans form and
function.
Provisional restorations
Provisional material: Disadvantages High Exothermia Toxic Monomer High Volumetric Shrinkage (8%) Low Abrasion Resistance Advantages Good marginal fit Not brittle Polishes well Durable Inexpensive
Poly Methyl Methacrylate (Jet Acrylic)
Provisional material: Disadvantages Difficult to polish Loses polish over time More brittle Challenging to repair or reline More expensive Advantages Less Shrinkage Low Exothermia No toxic odor Automix delivery Easy to trim and shape Radio-opaque More biocompatible
Bis Acryl Resin
