Opallis Flow is a radiopaque, light-curing microhybrid resin composite.
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Opallis Flow is used for restoration of minimally invasive preparations, pits and fissures sealant, base/liner under direct restorations, tunnel preparations, radiopaque liner of cavities, repair of enamel defects and restoration of deciduous teeth, repairs in composite resin, bonding of tooth fragments, class III and V restorations and non-carious cervical lesions. Opallis Flow can be used separately or with Opallis or most light-curing composites. Opallis Flow is light-curing with blue light at a wavelength between 400 and 500nm.


• 01 syringe with 2g
• 05 appliers tip
• Available in the shades A1; A2; A3 (universal); T (translucent); OP; A0.5; B0.5 and OA3.5 (Extra Opaque).

Characteristics and Advantages

• Easy application and low viscosity: allows you to fill highly porous and cavities which are difficult to access, such as in the form of a tunnel.
• High content of fillers: 72% with particle size of 0.05 to 5μ.
• Does not run off: the resin flows easily, but when the force applied ceases, the resin remains static.
• Liner: may be used as a liner in anterior and posterior teeth.
• Curing: similar curing shrinkage to other resin composites.
• Resistance: high mechanical strength.


• Restoration of minimally invasive preparations.
• Base/liner under direct restorations.
• Class II, III and V restorations.
• Tunnel preparations.
• Repair of enamel defects.
• Restorations in deciduous teeth.
• Bonding of teeth fragments.
• Non-carious cervical lesions.
• Flattening preparation walls.

Step by Step

Step 1

Shade selection: Chose the shade with the teeth hydrated.

Step 2

Preparation of the cavity: The cavity preparation must be performed according to the standards of the adhesive technique, only removing the decayed tissue. There is no need for additional retentions.

Step 3

Pulp protection: Cover only the regions nearest to the pulp (e.g. calcium hydroxide).

Step 4

Enamel and/or dentin conditioning: Apply phosphoric acid gel (Condac 37 – FGM) to the enamel and/or dentin and allow it to act for 15 seconds. Next, wash with plenty of water and dry with air jets free from oil. Avoid dehydration of the dentin.

Step 5

Adhesive Agent: Apply the adhesive system according to the manufacturer’s recommendations.

Step 6

Application of Opallis Flow: Apply the material directly into the cavity using the applicator tip. Each layer applied should be no thicker than 2mm. Light cure each layer for 40 seconds.

Step 7

Finishing and Polishing: Finish with Diamond Pro sandpaper discs and polish with Diamond or Diamond Flex felt disks with the aid of Diamond polishing pastes.


Is sensitivity with Flow resin more closely linked to the type of adhesive used?

No. Dental sensitivity has a number of factors such as: very deep cavities with areas of micro exposure of pulp, acid etching with greater permanence time than recommended by the manufacturer, flaws in the adhesive technique, persistent high levels of solvent in the adhesive, ineffective curing of the adhesive (non-cured monomer reaches the pulp generating cytotoxic effects and sensitivity), fluid resin with insufficient curing etc.

Does Opallis Flow include extra opaque shades?

Yes. Opallis Flow includes the shades A0.5; B0.5; OA3.5 and OP (Opaque Pearl).

Is Opallis Flow radiopaque?

Opallis Flow presents suitable radiopacity for an accurate diagnosis.

What is the basic composition of Opallis Flow?

Opallis Flow contains 72% silanized inorganic fillers composed of barium aluminosilicate micro particles and silicon dioxide nanoparticles with a particle size in the range of 0.05 – 5.0µm. It also contains methacrylic monomers such as TEGDMA, Bis (GMA), Bis (GMA), camphorquinone, coinitiators, preservatives and pigments.

Information for the Professional

Precautions and contraindications

• Use Opallis Flow only as informed in the Instructions for Use.
• The product is indicated for professional use only.
• Avoid using Opallis Flow in patients with a history of allergy to acrylate based composite resins. In case of allergy, discontinue use and ask the patient to seek medical attention.
• To avoid the risk of irritation, the closest areas to the pulp should receive adequate protection (implementation of calcium hydroxide, for example).
• To avoid allergic reactions to the methacrylate monomer, we recommend wearing gloves. If Opallis Flow comes into contact with the hands, wash with water.
• Avoid contact with the eyes. If this happens, rinse them thoroughly with running water and seek a doctor immediately.
• Contact with cationic mouthwashes, plaque disclosing agents and chlorhexidine can cause discoloration.
• When using a curing light, wear protective eyewear.
• Opallis Flow is contraindicated when it is not possible to establish a dry surgical field or following the described technique correctly.
• Do not use eugenol-based materials with Opallis Flow.
• Opallis Flow should not be ingested or inhaled. If ingested or inhaled, seek medical attention immediately.
• Do not keep Opallis Flow within reach of patients and children.
• Clean the instruments with alcohol after use.
• Replace the cover on the syringe after each use.
• Replace the applicator tip after every use. Do not reuse the applicator tip.


• Avoid contact between uncured Opallis Flow and the skin, mucosa and eyes.
• Before curing, the product may cause a slightly irritating effect and sensitivity due to methacrylates.

Preservation and storage

• The packaging of the product should be closed immediately after use.
• Store the product in a clean and dry location in its original packaging.
• Do not expose the product to high temperatures or direct sunlight.
• Store the product at temperatures between 5 to 30°C/41° to 86°F.
• Do not freeze the product.
• The validity period of the product is 3 years from the production date.
• Do not use the product after its expiration date.
• Follow the legislation of your country for disposal of the product.
• Do not reuse empty packaging.
• Keep out of reach of children.
• Protect the product from external contamination.

Side effects

• The product may cause some level of irritation if in contact with the dental pulp and/or very close to it. In the event of allergic reactions to the product, suspend its use.
• Opallis Flow is contraindicated in patients that are allergic or hypersensitive to methacrylate and related monomers.