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C&B CEMENT
Crown and Bridge Luting Composite

C&B CEMENT is recommended for use with BISCO Universal Adhesive Systems for cementation of fixed restorations including inlays, onlays, crowns, bridges, and Maryland Bridges. C&B CEMENT is a self-cured cement, designed to provide adequate working time and low film thickness to ensure complete seating of restorations. C&B is available in traditional two syringe packaging and now in convenient auto-mix dual syringes.

C&B Opaque is best for metal crowns, inlays, onlays and restorations such as Maryland Bridges which require masking underlying metal and a faster set.

C&B Natural is recommended for aesthetic restorations requiring a natural tooth shade beneath the restoration.

C&B Natural w/Fluoride should be used in areas particularly susceptible to caries.

• Low viscosity for ease of dispensing and mixing.
• High strength provides retention and resistance to compressive forces.
• Bonds to metal, porcelain, and tooth structure when used with ALL-BOND 2 or ONE-STEP.



Ordering Information
Instruction
Kits
B22110P C&B CEMENT OPAQUE [1 DUAL-SYR]::
1 Dual-Syringe Base & Catalyst (8g/mix)
Accessories
Instructions/MSDS
 
B22210P C&B CEMENT NATURAL [1 DUAL-SYR]::
1 Dual-Syringe Base & Catalyst (8g/mix)
Accessories
Instructions/MSDS
 
B22310P C&B CEMENT NATURAL with FLUORIDE [1 DUAL-SYR]::
1 Dual-Syringe Base & Catalyst (8g/mix)
Accessories
Instructions/MSDS
 
B2200Q C&B CEMENT OPAQUE [2 SYR]::
1 Syringe OPAQUE Base (4g)
1 Syringe Catalyst (4g)
Accessories
Instructions/MSDS
 
B2400N C&B CEMENT NATURAL [2 SYR]::
1 Syringe NATURAL Base (4g)
1 Syringe Catalyst (4g)
Accessories
Instructions/MSDS
 
B2400NF C&B CEMENT NATURAL with FLUORIDE [2 SYR]::
1 Syringe NATURAL with FLUORIDE Base (4g)
1 Syringe Catalyst (4g)
Accessories
Instructions/MSDS
 
C&B™ CEMENT
Crown & Bridge Luting Cement

GENERAL INFORMATION

C&B CEMENT is a self-cured crown and bridge luting composite cement with viscosity and flow characteristics that make it ideal for indirect restorations. It is intended for cementation of inlays, onlays, crowns, fixed partial dentures, and Maryland Bridges as well as fiber and metallic posts. This versatile cement can be used successfully with precious, semi-precious, and non-precious metals and for cementation of all-ceramic/porcelain and composite fixed prostheses. C&B is intended for use with adhesives such as ALL-BOND 2*, ALL-BOND 3*, ONE-STEP*/ONE-STEP PLUS or ALL-BOND SE*.

C&B Opaque is recommended for restorations such as Maryland Bridges, which require masking underlying metal.

C&B Natural is recommended for aesthetic restorations requiring a natural tooth shade beneath the restoration.

C&B Natural with Fluoride should be used in areas particularly susceptible to caries and would benefit from the effect of fluoride.

TECHNICAL INFORMATION

At Room Temperature (20°C/68°F - 25°C/77°F):

INDIVIDUAL SYRINGES:
C&B Opaque Working Time: 3 min. ± 30 sec.
C&B Opaque Setting Time: 4 min. 30 sec. ± 30 sec.
C&B Natural Working Time: 4 min. ± 30 sec.
C&B Natural Setting Time: 7 min. ± 1 min.
C&B Natural w/Fluoride Working Time: 4 min. ± 30 sec.
C&B Natural w/Fluoride Setting Time: 7 min. ± 1 min.

DUAL-SYRINGE:
C&B Opaque Working Time: 2 min. 45 sec. ± 30 sec.
C&B Opaque Setting Time: 4 min. 15 sec. ± 30 sec.
C&B Natural Working Time: 3 min. 15 sec. ± 30 sec.
C&B Natural Setting Time: 6 min. ± 1 min.
C&B Natural w/Fluoride Working Time: 3 min. ± 30 sec.
C&B Natural w/Fluoride Setting Time: 6 min. ± 1 min.

Working and setting times will be accelerated in the warm intraoral environment. Also, the cement will set quickly once it comes in contact with the ALL-BOND 2 primers on the tooth.

To Increase Working Time/Slow Setting Time:
(Recommended for cementation of multiple units)

• Increase catalyst. (This is the OPPOSITE of most catalyst/base cements.) Catalyst can be increased up to a ratio of 3:1 with the base before physical properties are affected.
• Chill cement in refrigerator before use.
• A chilled glass slab for spatulation can help slow the set of the cement.

HELPFUL HINTS

Metal Preparation:

• Sandblasting the inside surface of the restoration will produce much higher bond strengths than abrasion with a diamond bur.
• Tin plating is not recommended if using ALL-BOND 2 Adhesive System. If tin plating is used, make sure the metal surface has been thoroughly rinsed (approx. 30 sec.) prior to cementation.

If Using ALL-BOND 2:

PRE-BOND* Resin retards the acceleration effect of ALL-BOND 2 Primers A and B on self-cured and dual-cured composites. PRE-BOND should be applied in a thin layer immediately before cementation. If PRE-BOND is allowed to set on the tooth over the primers for a long time, its effectiveness is diminished and working time is decreased. This could cause the cement to set prematurely before complete seating of the crown, resulting in a high-seated restoration.

Loading the Prosthesis with C&B:

• Do not overload the crown/bridge with cement.
• The restoration should only be lined with the cement.

Seating the Restoration:

• Sensitivity under crowns bonded with composite cement can be avoided by applying the priming adhesive correctly and by passively placing the crown using light pressure only.
• Holding the crown in place (while polymerization occurs) with excessive force may cause hydrostatic pressure sensitivity upon release of the restoration.

C&B Cement left on the mixing pad may appear not to set:

• This is due to oxygen inhibition of the polymerization process.
• Rest assured the cement under the restoration will polymerize (set) in a normal fashion.
• The user can confirm this by placing a mylar strip over a substantial amount of cement on a mixing pad; the cement will set within the specified setting time.

Clean-up:

C&B sets very hard; removal of excess cement should begin as soon as the crown is seated.
• Failure to remove the cement early may result in the cement adhering to areas from which it should be removed.

INSTRUCTIONS FOR USE


METAL-BASED RESTORATION CEMENTATION:

TOOTH PREPARATION

1. Remove provisional restoration; clean the preparation and try-in the definitive restoration. If eugenol-containing temporary cements were used, clean the preparation with pumice to remove all traces of the cement. Eugenol may affect curing of some composite materials.

2. Etch using an etchant, such as UNI-ETCH* with BAC, according to the manufacturer's instructions. If using a self-etch adhesive such as ALL-BOND SE, skip this step and proceed to step 3.

3. Apply an adhesive, such as ALL-BOND 2, ALL-BOND 3, ONE-STEP/ONE-STEP PLUS or ALL-BOND SE, according to manufacturer's instructions.

CEMENTATION

1. Sandblast the internal surface of the restoration OR the metal wings of a Maryland Bridge. Rinse and dry.

2. Apply a metal primer such as ALL-BOND 2 Primers A & B, ALL-BOND 3 Parts A & B or ONE-STEP/ONE-STEP PLUS to the internal surface of the restoration OR the metal wings and air dry.

3. If using the dual-syringe delivery system, follow the enclosed DUAL-SYRINGE INSTRUCTIONS FOR USE for dispensation and delivery of C&B. If using individual syringes, mix equal amounts of C&B base and catalyst into a uniform paste (10-15 seconds) until the paste is a uniform color. (To increase working time, follow directions listed under TECHNICAL INFORMATION.)

4. Fill the internal surface of the restoration with C&B using an instrument.

5. Seat the restoration with light passive pressure.

6. Remove excess cement immediately with a brush or instrument.


ALL-CERAMIC/PORCELAIN AND COMPOSITE RESTORATION CEMENTATION:

TOOTH PREPARATION

1. Remove provisional restoration; clean the preparation and try-in the definitive restoration. If eugenol-containing temporary cements were used, clean the preparation with pumice to remove all traces of the cement. Eugenol may affect curing of some composite materials.

2. Etch using an etchant, such as UNI-ETCH with BAC, according to the manufacturer's instructions. If using a self-etch adhesive such as ALL-BOND SE, skip this step and proceed to step 3.

3. Apply an adhesive such as ALL-BOND 2, ALL-BOND 3, ONE-STEP/ONE-STEP PLUS or ALL-BOND SE, according to manufacturer’s instructions.

RESTORATION PREPARATION

ALL-CERAMIC/PORCELAIN RESTORATION:

1. Etch the internal surface of the restoration with PORCELAIN ETCHANT* (for 5-6 minutes with 4% hydrofluoric acid or 1-2 minutes with 9.5%). Rinse with water and air dry.

2. Apply a silane agent such as BIS-SILANE* to the internal surface for 30 seconds. Dry with air syringe.

3. Apply a thin layer of a hydrophobic bonding resin such as PORCELAIN BONDING RESIN*. Air thin. DO NOT LIGHT-CURE.
OR
Apply a bonding agent according to manufacturer’s instructions.

COMPOSITE RESTORATION:

1. Sandblast internal surface of restoration for 1-2 seconds. Rinse with water and air dry.

2. Apply a thin layer of a hydrophobic bonding resin such as PORCELAIN BONDING RESIN. Air thin. DO NOT LIGHT-CURE.
OR
Apply a bonding agent according to manufacturer’s instructions.

CEMENTATION

1. If using the dual-syringe delivery system, follow the enclosed DUAL-SYRINGE INSTRUCTIONS FOR USE for dispensation and delivery of C&B. If using individual syringes, mix equal amounts of C&B base and catalyst into a uniform paste (10-15 seconds) until the paste is a uniform color. (To increase working time, follow directions listed under TECHNICAL INFORMATION.)

2. Fill the internal surface of the restoration with C&B using an instrument.

3. Seat the restoration with light passive pressure.

4. Remove excess cement immediately with a brush or instrument.


FIBER AND METALLIC POST CEMENTATION:

POST SPACE PREPARATION

1. Etch using an etchant, such as UNI-ETCH with BAC, according to manufacturer's instructions and rinse with water.

2. Blot the canal dry with a large paper point, leaving the dentin visibly moist.

3. Apply an adhesive, such as ALL-BOND 2, ALL-BOND 3, ONE-STEP/ONE-STEP PLUS, according to the manufacturer's instructions.

4. Blot the canal dry with a paper point; repeat with a new paper point until the paper point returns dry from the canal. This step is important for removal of any pooled primers so that there is no interference in complete seating of the post.

5. Light-cure adhesive as necessary, according to manufacturer's instructions.

POST CEMENTATION

1. Coat the post with an adhesive and light cure according to manufacturer's instructions.

2. If using the dual-syringe delivery system, follow the enclosed DUAL-SYRINGE INSTRUCTIONS FOR USE for dispensation and delivery of C&B. OR If using individual syringes, mix equal amounts of C&B base and catalyst into a uniform paste (10-15 seconds) until the paste is a uniform color. Fill a UNIT-DOSE NEEDLE-TIP* with C&B.

3. Inject C&B into the canal. Start at the apical end of the canal and withdraw the tip towards the pulp chamber.

4. Seat the post into the canal gently and maintain firm pressure for 5-10 seconds once the post is seated.

5. Remove excess cement and allow to self-cure. As soon as cement has set, proceed with restorative treatment.

STORAGE

Store at room temperature (20°C/68°F - 25°C/77°F). See individual component labels for specific expiration dates.

PRECAUTIONS

Uncured resins may cause skin sensitization in susceptible persons. Avoid contact with the skin. In case of contact with the skin, wash thoroughly with soap and water. Hydrofluoric acid and Porcelain Etchant are severe eye irritants and tissue irritants. If accidentally splashed into the eye flush with copious amounts of water and seek medical attention immediately. Contact with other tissues: rinse spills immediately with plenty of water for several minutes. Injury may result if etchant is allowed to remain on the skin or mucosa for extended periods of time.

WARRANTY

BISCO, Inc. recognizes its responsibility to replace products if proven to be defective. BISCO, Inc. does not accept liability for any damage 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.

*C&B, PRE-BOND and BIS-SILANE are trademarks of BISCO, Inc.
ALL-BOND 2, ALL-BOND 3, ONE-STEP, ALL-BOND SE and UNI-ETCH are registered trademarks of BISCO, Inc.
PORCELAIN ETCHANT and PORCELAIN PRIMER are manufactured by BISCO, Inc.
UNIT-DOSE NEEDLE TIPS are distributed by BISCO, Inc.

Not all one-bottle systems bond to self-cured or dual-cured materials. Check with manufacturer's instructions.
Not all self-etch adhesives are indicated for indirect restorations, In addition, not all self-etch adhesives bond
to self-cured or dual-cured materials. Check with manufacturer’s instructions.

Refer to manufacturer's instructions. Not all ceramic systems are etchable.


   
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