GENERAL INFORMATION |
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PORCELAIN PRIMER
is a single component silane coupling agent in an alcohol and acetone
base that is used to improve the adhesive bond between porcelain
and composite. Silane is a dual function monomer consisting of a
silanol group that reacts with the porcelain surface, and a methacrylate
group that co-polymerizes with the resin matrix of the composite.
Silane coupling agents are known to enhance the wettability of glass
substrates by composite resins, increase physical, mechanical and
chemical bonding of composite to porcelain, and yield a greater
resistance to water attack at the bonding interface. Prior to applying silane, the porcelain repair site must be etched with PORCELAIN ETCHANT* (4% or 9.5% hydrofluoric acid). This process allows porcelain to become not only highly porous, but also highly receptive to the silane by creating reactive hydroxyl groups on the surface of the porcelain. Indications: |
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| INSTRUCTIONS
FOR USE |
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Do not use this product until
you have thoroughly read and understood this document. Extreme care
must be taken to protect the patient, operator and assistant. These
individuals must wear protective eyewear. The operator and assistant
must also wear protective gloves. A. Porcelain Repair 4. BARRIER GEL* may be placed to protect areas where etching is not desired.
5. Apply PORCELAIN ETCHANT 6. Suction the area to remove
the PORCELAIN ETCHANT. Rinse with copious amounts of water. Then
air dry. The etched surface may appear dull and frosty. The procedure
can be repeated but this is usually not necessary if instructions
are carefully followed. 7. Apply 1-2 thin coats of PORCELAIN
PRIMER with a brush to the etched surface of the porcelain and
allow to dwell for 30 seconds. Dry with air syringe. 8. Apply an adhesive: 9. Proceed with composite layering and finishing. The preferable composite should be a hybrid or nanohybrid, such as AELITE™* ALL-PURPOSE BODY. Microfilled composites are not recommended for porcelain repair. B. Etched Porcelain Restorations
1. Brush on 1-2 thin coats of
PORCELAIN PRIMER to the internal surface of the etched porcelain
restoration and wait for 30 seconds. Dry with air syringe. 2. ALL-BOND 2 USERS:
Apply a very thin layer of PORCELAIN BONDING RESIN (HEMA-free resin)
to the internal surface. Do NOT light cure! 3. Continue with cementation procedures. STORAGE: Store at room temperature (22°C/72°F). Refer to individual component labels for specific expiration dates. PRECAUTIONS: PORCELAIN ETCHANT is a severe eye and tissue irritant. If accidentally splashed into the eye, flush with copious amounts of water for 15 minutes and seek medical attention immediately. If PORCELAIN ETCHANT comes into
contact with other tissues: rinse affected area immediately with
copious amounts of water for several minutes. Injury may result
if etchant is allowed to remain on the skin or mucosa for any length
of time. WARRANTY: Bisco, Inc. recognizes its responsibility to replace products if proven to be defective. Bisco, Inc. does not accept liability for any damages or loss, either direct or consequential, stemming from the use of or inability to use the products as described. Before using, it is the responsibility of the user to determine the suitability of the product for its intended use. The user assumes all risk and liability in connection therewith. CAUTION: U.S. Federal law restricts this device to sale by or on the order of a dental professional.
CE ADMINISTRATOR IN-017R2 |
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to the dried repair site. Bisco's 4% concentration requires 3-4
minutes. Bisco's 9.5% concentration requires 1-2 minutes. To evacuate
hydrofluoric acid vapors, hold evacuator tip adjacent to repair
site. Monitor the etch site throughout the entire procedure.