BisCover* LV
Light-Cured Low Viscosity Liquid Polish

GENERAL INFORMATION

NOTE FOR BisCover USERS: Instructions for BisCover LV are different from BisCover. Please read the instructions thoroughly prior to use.

BisCover LV is a low-viscosity, light-cured resin formulation used to seal restorations while leaving a smooth polished/glazed surface. Due to its unique proprietary chemistry, BisCover LV cures without any sticky oxygen-inhibited layer. BisCover LV may reduce or even eliminate the need for manual polishing. The unique chemistry of BisCover LV allows for the use of LED, PAC, and halogen curing lights to achieve achieve polymerization.

INDICATIONS FOR USE

BisCover LV
is used to seal and polish/glaze:
A. Newly placed direct composites (cured only)
B. Previously placed direct composites
C. Provisionals
D. Resin-modified glass ionomers
E. Enamel before or after orthodontic bracket placement

F. Enamel after whitening (bleaching)
G. Acrylic appliances
H. Indirect composites

INSTRUCTIONS FOR USE


A. On Newly Placed Composites:


1. Light cure and contour the composite.

2. Apply acid etchant, such as UNI-ETCH®* w/ BAC, to the cured composite and adjacent tooth structure for 15 seconds.

3. Rinse and dry.

4. Continue with Section "Applying BisCover LV".

 

B. On Old/Previously-Placed Composites or for Reapplication:

1. Pumice the surface, or sandblast, or roughen with a fine diamond. Rinse and dry.

2. Apply acid etchant, such as UNI-ETCH w/ BAC, to the cured composite and adjacent tooth structure for 15 seconds.

3. Rinse and dry.

4. Continue with Section "Applying BisCover LV".

 

C. Provisionals (all types):
NOTE:
Can be used prior to or after cementation.

1. Contour the provisional restoration.

2. Rinse and dry. (Etching is not required.)

3. Continue with Section "Applying BisCover LV".

 

D. On a Light-Cured/Dual-Cured Resin-Modified Glass Ionomer:

1. Place Resin-Modified Glass Ionomer per manufacturer's instructions.

2. Light cure for 3-5 seconds at 500mW/cm2 and contour.

3. Continue with Section "Applying BisCover LV".

 

E. In Orthodontic Applications:

Prior to Bracket Placement:

1. Clean the surface with a slurry of pumice/water.

2. Etch the entire area with phosphoric acid, such as UNI-ETCH w/ BAC, for 30 seconds (120 seconds for primary teeth).

3. Rinse with water (approx. 10-20 seconds) and dry thoroughly. The etched area will appear frosty white. If not, re-etch for an additional 20 seconds.

4. Continue with Section "Applying BisCover LV".

5. Apply bracket cement, according to manufacturer's instructions.

If Brackets Have Already Been Placed:

1. Follow same instructions as in section E, "Prior to Bracket Placement" excluding step 5.

 

F. Enamel [after Whitening (Bleaching)]:

1. Clean the surface with a slurry of pumice/water.

2. Etch the surface with 32% phosphoric acid, such as UNI-ETCH w/ BAC, for 30 seconds.

3. Rinse with water (approx. 10-20 seconds) and dry thoroughly. The etched area will appear frosty white. If not, re-etch for an additional 20 seconds.

4. Continue with Section "Applying BisCover LV".

 

G. Acrylic Appliances:

1. Contour the appliance. Clean the appliance thoroughly.

2. Rinse and dry.

3. Continue with Section "Applying BisCover LV".

 

H. On Indirect Composites:
NOTE:
Can be used prior to or after cementation.

1. Pumice the surface, or sandblast, or roughen with a fine diamond. Rinse and dry.

2. Apply acid etchant, such as UNI-ETCH w/ BAC, to the cured composite and adjacent tooth structure for 15 seconds.

3. Rinse and dry.

4. Continue with Section "Applying BisCover LV".

Applying BisCover LV

1. If using a bottle of BisCover LV, dispense BisCover LV into a mixing well. Dip the brush into the BisCover LV. Wipe excess from the brush onto the side of mixing well. The brush does not need to be saturated, just wet enough to apply one thin coat. If using the BisCover LV syringe, apply directly using a syringe and an applicator tip. (NOTE: This is a low viscosity material and as such, care must be taken to control the amount of material dispensed from the syringe. It is also recommended that the tip be removed from the syringe and the cap replaced immediately upon completion of application.)

2. Apply one thin coat of BisCover LV in one direction with a smooth stroke. Do not agitate the brush during application. It is very important that one allows 15 seconds dwelling time for evaporation of solvent after application. Do not air thin as this will disperse the material unevenly causing ripples on the surface.

CAUTION: Upon curing, BisCover LV may produce a brief exothermic reaction which is minimized by applying in a thin layer. Do not cure on soft tissue.

3. BisCover LV uses the following curing lights and curing times to initiate polymerization. Insufficient curing will leave an air-inhibited layer on the surface of BisCover LV.

a. LED Lights: Using an LED curing light with a minimum output of 500mW/cm², light cure for 30 seconds at close range (0-2mm).

b. Halogen Lights: Using a halogen curing unit, such as VIP* junior, with a minimum output of 500mW/cm², light cure for 30 seconds at close range (0-2mm).

NOTE: If the light intensity is lower and/or curing occurs at a distance (10mm), light cure for greater than 30 seconds.

c. PAC (Plasma Arc) Lights: Using a PAC light, light cure for 10 seconds at close range (0-2mm).

4. If a second coat is desired, repeat steps 1-3.

 

Troubleshooting:

OBSERVATION: After curing, the treated surface has white spots.
1. Insufficient evaporation of the solvent has occurred due to too thick of a layer or entrapment of solvent.
SOLUTION: Remove BisCover LV with rotary instruments and apply again, allowing sufficient time for evaporation of the solvent.

OBSERVATION: The surface is tacky after curing.
1. The light intensity may be less than the required amount. The lamp may be old and need replacement, or the internal filter may be scratched and dirty.
SOLUTION: Use a radiometer to determine the actual output intensity, and/or increase the curing time.

2. The light guide may be too far away from the surface. Light divergence reduces the intensity at the curing surface as the light spreads to cover a larger area.
SOLUTION: Keep probe 1-2mm from surface, and/or increase the curing time.

3. Residue build-up on the tip of the probe may block light and reduce the intensity. A chipped or scratched probe tip will also contribute to reduced intensity.
SOLUTION: Clean the tip of the light probe, and/or increase the curing time.

4. Substrate was contaminated.
SOLUTION: Apply a second coat of BisCover LV.

OBSERVATION: The surface is not tacky but it can be scratched.
1. BisCover LV requires a minimum curing intensity regardless of the amount of time cured. Holding the light at a distance will reduce the intensity dramatically due to light divergence.
SOLUTION: When curing a large surface area, it is better to cure smaller sections at close range as opposed to the whole area from a distance.

OBSERVATION: The surface is not cured uniformly.
1. The intensity of the curing light may not be uniformly distributed as an output, falling off in intensity towards the outer periphery. This is further exaggerated as the distance between the probe and surface are increased.
SOLUTION: When curing a large surface area, it is better to cure smaller sections at close range as opposed to the whole area from a distance.

 

STORAGE: Store at room temperature (22°C/72°F). Refer to individual component labels for specific expiration dates.

PRECAUTIONS: Unpolymerized resins may cause skin sensitization in susceptible persons. In case of contact with the skin, wash thoroughly with soap and water. Do not cure on soft tissue.

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.


* BisCover and VIP are trademarks of BISCO, Inc.
* UNI-ETCH is a registered trademark of BISCO, Inc.



BISCO, INC.
1100 W. Irving Park Road
Schaumburg, IL 60193
U.S.A.
847-534-6000
1-800-BIS-DENT
www.bisco.com

CE ADMINISTRATOR
Bisico France -
Mr. Fred Picavet
L'Opera- BP. 60
13680 Lançon De Provence
France
Phone: 33-490-42-9292
Fax: 33-490-42-9261


IN-145R3
Rev. 6/07

Patent Pending