By Unknown on Friday, May 9, 2008 with 0 comments

A. Veneer with amalgam alloy existing restoration:

1. Cut amalgam back and place amalgapins or slots.

2. Bevel the exposed enamel.

3. Air abrade amalgam alloy surface with 50 micron alumina. ** (Use caution to protect the patient's eyes and cover adjacent restorations with the rubber dam or a piece of boxing wax). **

4. Etch the entire prepared surfaces (enamel etching & amalgam cleaning).

5. Apply low viscosity dentin bonding agent and opaque tints to block out metal.
6. Apply resin - incrementally using appropriate enamel, dentin or incisal shades.
7. Contour and Finish.

8. Check occlusion (eliminate lateral excursive contacts and just try to maintain an occlusal stop on the amalgam alloy in maximum intercuspation).

B. Veneer with acrylic facing/gold crown.

1. Cut back and place amalgapins or slots.

2. Air abrade metal with 50 micron alumina. (use precautions as mentioned above).

3. Acid-etch gold to clean surface.

4. Apply low viscosity dentin bond agent, opaque tints and composite resin.

5. Contour, finish and check occlusion.

C. Diastema closure.

1. "Scuff" enamel with 12/30 fluted carbide bur to remove surface irregularities and enhance enamel bonding.

2. Measure distance between teeth to determine the 1/2 way point.

D. Bonding existing tooth structure.

1. Composite resin with bond agents, glass ionomer cements.

2. Relieve dentin area of fragment slightly to allow room for the luting media and liner on remaining vital dentin.

3. Bevel and acid-etch all available enamel.

Category: Prosthodontics Notes



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