Presentation

• Dual body syringes (base + catalyzer)
• Single syringes of base paste
• Single syringe of catalyzer paste
• Self mixing nozzles

Dual body syringes (base + catalyzer)

Single syringes of base paste

in the shades: A1, A2, A3 (Universal) and Trans. Contains 2.5g.

Single syringe of catalyzer paste

Contains 2.5g.

Self mixing nozzles

Contains 20 units

Advantages

Features

Downloads

Step by Step

Attention: Allcem resin cement is not compatible with acid classified as one step self-etching. The high acidity of such adhesives may prevent the chemical cure of the resin cement.

Tooth Preparation

Step 1

Isolate the tooth and use a retraction system when the margin is sub gingival to ensure a contamination-free preparation.

Step 2

Clean the preparations appropriately with pumice and prophylaxis cup, etch the enamel and dentin for 15 seconds with phosphoric acid at 37% (Condac 37, DENTSCARE). Rinse with water abundantly for 10 seconds. Make sure that all the acid has been removed and dry the preparation slightly with jets of air leaving the tissue damp.

Step 3

Apply the adhesive (with a brush or micro-applicator) and light cure it according to the manufacturer’s instructions. Allcem resin cement is not compatible with acid adhesives classified as one step self-etching. The high acidity of such adhesives may prevent the chemical cure of the resin cement.

Cementation of metal-free (ceramic), porcelain-fused-to-metal, or resin crown.

Step 1

The metal free, porcelain-fused-to-metal or resin restorations must be previously submitted to treatment with jet sprays of aluminum oxide by a laboratory to generate superficial micro porosities. Prepare the porcelain restoration applying hydrofluoric acid gel at 10% (Condac Porcelana, DENTSCARE) for 1 min on the internal surface of the piece, which will get in contact with the resin cement. Rinse with water abundantly until all the hydrofluoric acid has been removed and dry it soon after.

Step 2

Silanization of the restoration: Apply Prosil (DENTSCARE) on the piece, which is a colorless solution with the aid of a disposable micro-applicator (Cavibrush, DENTSCARE) and wait for 1 minute. Dry the surface with slight jets of air.

Step 3

Select the appropriate color of Allcem for the cementation of the piece. Dispense the appropriate amount of Allcem resin cement on the spatulation block in the proportion of 1:1 and mix the pastes for 10s with a plastic spatula or use the mixing nozzle, which should be discarded after use. Allcem resin cement is presented in a dual body syringe (base paste + catalyzer paste), disposable application nozzles which mix the pastes in the appropriate proportion and also in separate syringes of base paste or catalyzer paste.

Step 4

Apply a fine layer of cement inside the prosthetic restoration or on the dental cavity covering the whole surface.

Step 5

Carefully place the piece on the tooth allowing the cement to drain slowly from all the margins.

Step 6

Keep the piece still and begin cleaning the excess cement after approximately 3 to 5 minutes from the beginning of the paste mixture. In case the excess cement is removed soon after the positioning of the piece, the margins should be light cured to prevent such effect that is triggered by oxygen.

Step 7

In case of minimally retentive restorations, position the piece and keep it still during the cleaning of excess cement.

Step 8

After allowing a chemical cure for 3 to 5 minutes and removing the excess cement, light cure each surface and the margins for 40 seconds or allow the chemical cure to continue until 10 min after the paste is mixed.

Note: In cases of porcelain and composite resin restorations, the margins should be light cured for 40 seconds to ensure the immediate fixation of the restorations.

Step 9

Polish and finish the restoration.

Note: After light curing the restorations and the margins, remove the excess material with the aid of a scalpel blade. The use of rotating instruments should be avoided before the complete cure of the cement.

Step 10

Instruct the patient not to forces the restoration until 15 minutes after the procedure.

Cementation of root canals

Step 1

Prepare the endodontically treated tooth to receive the post dimensioning the root canal and the post.

Step 2

Condition the enamel and dentin for15 seconds with phosphoric acid gel at 37% (CondAc, DENTSCARE). Rinse with water abundantly making sure that all the acid has been removed. Dry the canal with the aid of an absorbent paper cone and the dentin and coronal enamel with jets of air without dehydrating them.

Step 3

Apply the adhesive (Ambar, FGM) with the aid of a disposable micro-applicator (Cavibrush, FGM) rubbing it into the root canal for 15 seconds to cover the walls with a fine adhesive layer. Make sure that there’s no adhesive deposition in the root canal. Follow the manufacturer’s instructions to evaporate the solvent with air and to provide adequate light curing time to the procedure.

Note: Allcem resin cement is not compatible with self-etching adhesives as they may prevent chemical cure. The suitable adhesives are the so-called three stage adhesives (acid + primer + adhesive) and two stage adhesives (acid + primer/bond).

Step 4

The use of chemical cure adhesives is recommended due to the reduced light access along the root canal.

Step 5

Prepare the root canal post (White Post, FGM) applying a layer of Prosil (Prosil, FGM) which is a bonding agent or adhesion promoter, and wait 1 minute until its evaporation. Dry the surface with slight jets of air.

Step 6

Dispense the appropriate amount of Allcem resin cement in the proportion of 1:1 on a spatulation block. Mix the two pastes with a plastic spatula for 10 seconds. Apply a fine layer of mixture along the post or apply the cement inside the root canal with the aid of appropriate instruments.

Step 7

Position the post in the root canal. Begin the cleaning process approximately 3 to 5 minutes after the insertion of the cement. Light cure for 40 seconds on the occlusal surface to fixate the post in the right position. The use of translucent posts facilitates the passage of light through the canal and the cure of the resin cement along the post.

Step 8

Proceed with the coronal reconstruction of the tooth.

F.A.Q.

What is the particle size of resinous cement?

Allcem has nanoparticles of 40 nm and microparticles with sizes between 0,6 to 2 μm with medium sizes of 0,9 μm.

Can self-etching adhesive be used as resinous cement?

No. Self-etching adhesives are acid and alter the amine tertiary substance present in resinous cements, harming chemical curing and lowering adhesion resistance.

What is Allcem resinous cement shade recommended for a White post cementation?

The White post can be cemented with Allcem shades A1, A2, A3 and Trans, because the resinous cement is dual curing. The full curing occurs through the chemical curing.

What are the advantages of Allcem’s dual body syringes with the aid of the self-mixing tip?

Allcem - Dual body syringes enable proportion 1:1 of the pastes. However there is an alternative to use the self-mixing tip. This tip must be attached to the syringe, and while using the product; the tip will allow the pastes to mix, enabling the product application on pieces and avoiding incorporation of bubbles. However, the self-mixing tip is discarded after each use due to the chemical cure that happens inside of the tip.

Is it important to make a thin layer when using allcem?

Yes, Inferior to 50 microns, according to ADA norm (American Dental Association). For a better adaptation and avoid suffering excessive polymerization contraction, and more resistance. A prosthetic restoration must be prepared, besides aesthetics, functioning and satisfactory retention, a perfect adaptation of prepared tooth, promoting an adequate edge sealing. The incomplete fitting of prosthetic crowns can be caused by the cement accumulation on the surface of tooth preparation. However, to minimize the edge’s gaps, and occlusal discrepancies, the cement agent should be able to reach an ideal thickness during the cementation (Donován & Cho, 1999). Among other factors that influence the final thickness of cement, we can cite: the angle of axil walls of the preparations, the cementation space, the strength used during the cementation, the type of cement selected, easy manipulation, the powder of bonding reaction, the length of work, the viscosity, and the amount of particles present. (Agostinho et a! 2000, Rosentiel et a! 1998)

What are the advantages of adhesive cementation related to conventional cementation?

The Zinc Phosphate cement has been traditionally recommended as the first choice for cementation of metal parts, , despite presenting some disadvantages such as solubility and lack of adhesion.
However  there  are cements in the market nowadays  that show a gain in mechanical and physical properties because they present less solubility in their formulas and due to  techniques applied which provide better power distribution and less fracture risks, allowing better aesthetic results mainly in cases of pure ceramic, among other competitive advantages:
- High mechanical resistance
- Enamel and dentin micromechanical union
- Avoids micro infiltration compared to conventional cements (for example Zinc Phosphate)
- Reduces fractures risks since it distributes the strength in the group teeth restoration.

Why is self-etching adhesives contraindicated when used with dual cement or chemically activated?

In dual cement or chemically activated single bottles must not be used, because that decreases adhesion resistance between resinous cement and dentin. Resinous cement shows a substance (amine tertiary) that contributes to the chemical curing process. Acid adhesives alter the substance; impeding the chemical curing process. This is a characteristic of all resinous cement in the market.

What are the procedures to be followed when making an adhesive cementation?

The preparation must be evaluated carefully, evaluating the depth, avoiding pulp hyperemia that may be aggravated by an acid attack. It is important to control the humidity during cementation and also removing the excess, which is the hardest part to be done.

What is the best treatment for indirect superficial restorations?

In ceramic restoration with high silica level, the treatment with jets, etching or fluoridric acid, followed by silane application has shown good results. In the ceramic systems In_Ceram and Procera All_Ceram, either the mechanic treatment, the jet, the etching, the fluoridric acid or the silanization would be recommended. In the fiberglass White Post it is recommended the use of silane.

What are the advantages of using dual resinous cement?

Cements of dual curing cure chemically, and in case the dentist wishes to speed up the curing process, there is a possibility to light cure the product, therefore there are two curing mechanisms.

What are Allcem dual curing resinous cement main characteristics?

- Two curing mechanisms: (Light and chemically activated) effective even in the absence of light.
- Broad application range
- Elevated adhesiveness, effective in several types of surfaces
- Elevated mechanical properties both in chemical and dual curing.
- Easy to dispose the product due to the double body syringe: proportion 1:1 (base + catalyzer).
- The self-mixing tip stops the incorporation of bubbles when mixing Allcem pastes.
- Shades A1, A2, A3 (Universal) Extra opaque (Opaque Pearl) and Trans.
- Adjusted rheological properties to make the product manipulation and application easier.

Can Allcem be indicated for cementation of veneers?

Yes. It can.

Are the Allcem’s self-mixing nozzles disposable?

Yes. After mixing the base paste and catalyser happens the bonding of cement inside the nozzle.

Professional Information

Conservation and Storage

• The cement must be closed immediately after use.
• Do not expose the product to high temperatures or intense light.
• Store the product at temperatures between 5ºC and 20 ºC.

Side Effects

• The product may cause some level of irritation in contact with the dental pulp and / or in nearby areas. In cases of allergic reactions to product discontinue the use.

 

Warnings

• Do not use the product if expired.
• Discard the product following the legislation of your country.
• Do not reuse the empty packages
• Keep the product out of the reach of children.

Precautions and Contraindications

• The product may cause some level of irritation in contact with the dental pulp and / or in nearby areas. In cases of allergic reactions to product discontinue the use.

• Allcem contains curing monomers that can cause skin sensitivity (allergic contact dermatitis) in susceptible individuals. After contact, wash the area immediately with water and soap.

• Allcem contains methacrylates that may irritate the eyes. In case of contact, wash immediately with a great amount of water and seek medical attendance.

• To avoid cross-infection, do not reuse application nozzles. Make sure to place back the cap after use.

• Protect the pulp with lining material or cavity base if the cavity has pulp exposure. Do not use eugenol-based material in order to avoid insufficient cure of the surface.

• Light cure the resin cement for at least 40 seconds with equipment of halogen light or LED with power of 450mW/cm2 or more and blue light emission spectrum of (400-500 nm). Use protective goggles when operating a light-curing unit.

• Allcem is not compatible with one-step self-etching acid adhesives. The high acidity of such adhesives may prevent the chemical cure of the resin.

• Adjust the reflector light so that it doesn’t focus directly on the porcelain veneer during the color selection. This procedure foresees premature light curing of the cement.

Research and Development

Scientific Validations