Presentation

• Refill:

Refill:

• 01-2 g syringe. Available in shades: A0,5 and B0,5.

Advantages

Features

Downloads

Step by Step

Shade selection

To select the shade, a prophylaxis should be performed previously. For a proper selection the teeth should be clean and hydrated and without isolation since dehydration may alter the color.

Methods for shade selection

• The VITA shade guide is recommended since it is commonly utilized to support shade selection:
• A small portion of the composite resin may be placed over the facial surface of the tooth to be restored (without conditioning nor application of an adhesive system), then it should be light cured for 30 seconds, humidified with the patient’s saliva and observed. This stage may be accomplished to confirm the color of the composite resin.
• In more challenging cases, the professional should initially make a chromatic map of the tooth. The chromatic map consists of all the detailed information on the individual’s teeth characteristics.

Application

Step 1

Since enamel and dentin present different opacities levels, in order to perfectly restore a lost tooth structure  enamel and dentin masses are required, such as translucent to work on incisal areas and opaque to work on sclerotic dentin.

Step 2

Prepare for the execution of direct adhesive restorations.

Step 3

Execute the acid etching (CONDAC 37%) on the margins of the enamel initially and then inside the cavity. The acid etching time is 15 seconds. After that, wash with water abundantly, remove all the acid from the tooth structure and dry the dentin without dehydrating it.

Step 4

Apply the adhesive system according to the manufacturer’s instructions.

Step 5

Insertion and Light Curing of the Composite Resin:

• We recommend the technique of insertion and light curing by increments. Such technique allows a more uniform light curing. Follow the time described in Table 1 for layers of up to 1.5 mm of resin.

• Restore the cavity according to the selected color(s) applying small layers of Opallis (maximum thickness of 2mm) adapting them in the cavity carefully.

Step 6

For the finishing and polishing, we recommend Diamond Pro sand disks and Diamond Flex felt disks with the aid of Diamond ACI, ACII and Diamond Excel polishing pastes.

NOTES

1 - Check the occlusion is an extremely important factor. Restorations in supra-occlusion cause a great stress on the tooth/restoration which can lead to pain. Do not let them in infra-occlusion.

F.A.Q.

Why does Opallis resin contain 4 levels of translucence?

Because enamel and dentin present different opacity levels, therefore to perfectly restore a lost tooth structure, there is a need of translucent composites to work on incisal areas and opaque composites to work on sclerotic dentin.

What is fluorescence?

Fluorescence is the capacity of the tooth to absorb ultraviolet radiation (black light) and emit radiation in order to make the spectrum visible providing a bluish aspect.

Why is important for a resin to have fluorescence?

In order to restore a lost tooth, it is necessary to reproduce all natural properties of a natural tooth. Non-fluorescence resins are detected as a dark area when exposed to ultraviolet light.

What is opalescence?

It is an optical property of enamel that is capable of transmitting long waves of natural light and reflecting short waves. Opalescence can be observed in the incisal area of the teeth where only enamel is present. Due to its translucence, enamel is capable of reflecting waves of bluish light and transmitting orange light.

How important is the photopolymer power in composite resins photo activation?

To achieve better results, it is recommended 450mW/cm2 power, reaching an adequate photo polymerization, reducing shades alteration, percolation, and infiltration. To assure the quality of restoration it is necessary to evaluate the photo polymerization density power periodically. The lamp maintenance must be done whenever is necessary.

Microparticule resins are used superficially to reproduce enamel and to improve polishing quality. Is Opallis composite (micro hybrid) able to provide a good polishing?

In a recent work ( Ardu e Krejci, Quintessence Int, 2006), the result of recapping technique with microparticule resin was evaluated after 20 years of clinic development. The authors have highlighted that microparticule resins are not fracture proof to be used in large volumes and concluded that “The use of techniques and suitable materials lead to great aesthetic results to small and medium defective restorations done previously with direct composite resins”. The distribution of the particle sizes allows adequate resin filling, contributing to its high mechanic resistance, characteristics necessary for restorations in posterior teeth. The particles reduced size provides an easy polishing leading to a smooth and highly lustre surface, disregarding the need of a microparticule resin as a final layer. OBS: Whenever a resin different from Opallis is used as a final layer, it can alter fluorescence in the final restoration. For an instance, a microparticule resin without fluorescence will mask the fluorescence of the Opallis layers presenting medium size 0.5. Opallis composite resin is micro hybrid with adequate particle distribution.

How can restorations class III be masked with Opallis?

The visible line between the tooth structure and composite resin is very common in situations while working with low volume composite resin. That happens because of the masking insufficiency of the enamel/resin interface. This unpleasant defect can be corrected with a pigment application (additional clinic step of great difficulty) or else it can be done with a small Opallis resin sheet in most case the shade used are sometimes an opaque OP or OW, go over about half of the enamel bisealed or not, make the opacity of such resin mask the defect.

What are the extra-opaque resins (Opaque Pearl, Opaque White, A0,5 and B0,5) indicated for?

Opaque Pearl and Opaque White are indicated for opacification of dark areas (sclerotic dentin, or stained dentin in pulpless teeth) both in anterior and posterior teeth. They can also be used as affect masses to simulate white areas; hypo plastic stains in some selected cases. Opaque Pearl and Opaque White can be used to build opaque incisal halo. A0,5 and B0,5 are resins developed for pediatric dentistry, more opaque, due to their pigmentation it is possible to reproduce primary teeth perfectly. However, nothing stops them from being used in bleached teeth, since the previous selection of shades match these options.

How important is Opalescence in composite resin? Does Opallis have opalescence?

Yes, Opallis has opalescence. Opalescence is an enamel property, observed mainly in incisal tips, and edges, related to its ability to transmit long spectrum waves, giving to enamel an aspect of orange shade. At the same it reflects short waves, what gives enamel a bluish shade. It is related to a very important property because depending on the incident light that is transmitted or reflected, the restorative material shows different shades, simulating what happens to a natural tooth.

There are several levels of fluorescence in composite resins. How can I identity if a resin has compatible fluorescence to the tooth structure?

Resin manufacturers make previous tests on their enamel masses, dentin and effects, comparing them to pre-established norms; all resin masses with dentin and natural enamel. Such care assures adequate fluorescence for the use of composite resin restorations. Ultraviolet lights are used for this kind of distinction in offices and labs. Since acquiring such gadget is many times costly for the professional, a good way out is referring to instruction manuals, reliable materials, and scientific cases. Check the technical profile of the resin you use, look for quality literature and mainly understand what fluorescence is. FGM disposes of all the equipment for the certification of its resinous composites such as spectrophotometer, rheometer, and ultraviolet light, assuring not only an adequate fluorescence, but all the physical and mechanical properties that a micro hybrid resin requires.

The masking of darkened dentin is the biggest difficulty presented by professionals. Not many composites contain sufficient opacity to mask the color change successfully. Does Opallis provide resins for that purpose?

The darkened areas are common seen in offices daily, since we are often faced with sclerotic, stained or darkened dentin. Mainly in cavities types II, on posterior teeth, veneers, and on depulped teeth, making very common the need of opacification of the darkened dentin. Such process requires resins with great opacity even in small thickness, such as Opallis OW and OP. The OW shade (Opaque White) gives a “white” opacity, turning the darkened area into a “white paper”, ready to receive “shade”, a dentine mass or the colorful enamel. The OP shade (Opaque Pearl), has a opacity with a subtle touch of yellow “pearl”, can be used for opacification or if there’s a need to create hypoplasic white stain or the reconstruction of the incisal halo.

How can effect shades (T-Neutral, T-Yellow, T-Orange, T-Blue) be used in a restoration?

The resins “T” are more transparent than the enamel resins, having elevated translucence (66 to 79%). The shades added to these transparent masses of Opallis resin enable the opportunity to create effects like the ones found in the incisal areas of young teeth, bluish areas or even more transparent where light can be reflected. The choice among NEUTRAL, YELLOW, ORANGE, or BLUE, is very personal, and directly connected to each case. The observation of what is desired reproduces the most important moment of selecting the shades “T” for the restoration. According to instructions they must be inserted in between the spaces created by the dentin in the incisal area, making room for the incisal edges to be compatible to real ones. The T-Yellow shade is very translucent, and without pigmentation. It can be used as the final layer to simulate the enamel. The T-Neutral shade shows translucence inferior to the T-Yellow although superior to conventional enamel shades. It is suitable for most situations of incisal third and palatine reconstructions.

Can Opallis be used to restore posterior and anterior teeth?

Yes, it can be used both in anterior or posterior teeth. Every micro hybrid resin has this intrinsic characteristic, due to particle distribution and size, good abrasion resistance (characteristics desired in class I and II restorations) and fractures resistance (class IV, for example). The laboratorial tests for Opallis resin, performed by professors Carlos Francci (FOUSP) and Baratieri (UFSC), show very good results when compared to resins of same qualification. Such results can be proven by clinical follow-ups of 12, 18, and 24 months of Opallis resin that have been done in several universities in Brazil. The aesthetics resources present on the translucent and opaque composites are Opallis great differential. By using this material, endless combinations and effects can be performed by professionals in everyday situations.

What are the function of shades A0, 5 and B0, 5? Can they be used in bleached teeth since they show a chroma lower than the shade A1?

What determines the shades that will be used in a restoration is the “shade selection” procedure. If after dental bleaching, Opallis resins A0,5 and B0,5 look compatible to the dental shade, they should be used. Despite of being prescribed for primary teeth and having high opacity, nothing stops them from being used in permanent teeth.

What is the difference between Opallis Bleach shades (L, M and H)? Is there a variation in the level of yellow?

The difference is that despite all of them present lighter shades than the standard B1 from VITA Classical, there are few chroma variations among these masses. The Bleach H shows lower chrome (less yellow). The bleach L shows more chroma, due to larger quantities of yellow pigment. The Bleach M is located in an intermediate rate, balancing the levels of yellow.

Professional Information

Conservation and Storage

• Keep the product out of heat, always keeping it closed very well.

• Do not use it if expired.

• Keep out of sunlight.

Expiration Date

• Two years after date of manufacture. The date of manufacture and lot number are stamped on syringes and packages.

Research and Development

Scientific Validations