Everyone would like to have a beautiful smile. Sometimes, in order to fulfill this desire, specialist assistance is needed. Of great importance is what materials the doctor uses in his work. Currently, there are such composites that will eliminate defects and damage to the front teeth, so that they will be completely invisible. The quality of such materials is many times higher than the quality of materials of past years. Consider one of the new generation of composites "Filtek Z250". What form is produced, what is included in the composition, and also what is the technique of work, what are the indications and contraindications for use? We will learn about all this later.
What is it?
The filling material of the new generation "Filtek Z250" is a microhybrid composite. It is light-cured, radiopaque, restoration material.
Designed by renowned company ZM ESPE. The latest technologies made it possible to introduce nanoparticles, nanoclusters, and combinations thereof into the composition of the composite. Due to this, the material has acquired significant strength.
A large number of shades of the composite allows the material to be used in the oral cavity both on the front and on the side teeth.
It is easy to work with "Filtek Z250", it is flexible, soft for modeling and at the same time very durable after solidification.
What's in the composition
The material "Filtek Z250" incorporates inorganic particles (about 60%). Their size is from 0.01 to 3.5 microns.
The filler contains zirconium. And also such resins:
The composite is available in several colors due to the following fillers:
- Non-aggregated zirconium filler 4-11 nm.
- Silicon filler 20 nm.
- Dispersed zirconium and silicon cluster filler.
The particle diameter affects the color of the material, it is 0.5-5 microns.
Transparent shades have particles of 0.6-20 microns in size.
It is included in the kit
The filling material is packed in syringes and disposable capsules.
Let's consider what the Filtek Z250 kit consists of:
- 8 syringes of 4 g. A1, A2, A3, A3.5, B3, C2, D3, UD.
- Single Bond Adhesive Bottle - 2-6 ml.
- Scotchbond Etching Gel Syringe - 3 ml.
- A trial set of Sof-Lex rims.
- The scale of shades.
- Accessories
Consider in what cases it is possible to use a composite.
Indications for use
Material "Filtek Z250" is indicated for use for the following work:
- Splinting.
- Restoration of front and molars.
- Indirect restoration.
- Building a tooth stump.
- To set tabs, linings or veneers.
- "Sandwich" equipment.
The use of material for filling cavities of class 1-4 of the anterior and molars indicates its high quality. Consider what contraindications to restoration exist.
When not
It should be noted that there are very few contraindications to the use of modern light-cured materials. We list them:
- The patient has an allergic reaction to the composite. Very rare.
- The patient has a pacemaker, the operation of which may be impaired due to the inclusion of a photopolymerization device.
- There is no way to drain the oral cavity or tooth from moisture.
- Ceramic-metal constructions are installed on adjacent teeth.
- Composites should not be combined with eugenol, phenol, iodoform and substances in the molecule of which a phenolic ring.
- Tooth decayed below gum level.
We also list several relative contraindications:
- Bruxism.
- Direct bite and abnormal abrasion of teeth.
- Tight contact between the upper and lower teeth together with a deep incisal overlap.
- The patient does not observe oral hygiene.
All these reasons can be eliminated, taking into account their features, and then use a modern composite.
Material advantages
Not every filling material has the following advantages:
- High density provides excellent edge fit.
- Photopolymerization.
- An alternative to multilayer restorations.
- After use, an excellent aesthetic appearance is guaranteed.
- Easy to polish.
- High level of wear resistance.
- Low shrinkage, about 2%.
- Easy to use, does not stick to tools.
- Large selection of shades.
Having such advantages, the material is very popular among dentists.
Technology of work
Consider what is the technology of work with material "Filtek Z250". The instruction recommends the activities described below.
Preparatory procedures:
- To clean teeth from plaque. It is necessary to use pumice and water. This will help determine the color correctly.
- To identify if there are concomitant diseases and contraindications for the installation of a seal.
- Determine the depth of restoration. The hue will depend on the thickness of the material.
As a rule, a tooth plate is divided into three parts:
- Squat. Use material in yellow shades.
- Average. Apply yellowish, brownish and gray shades.
- Cutting edge. Use blue and gray tones.
For restoration, it is necessary to work with the material to determine the thickness and shape, as well as to select the desired shade. Trial application will help achieve optimal results.
Next is the isolation of the tooth from the gums and cheeks. To do this, use a rubber dam or cotton rolls with saliva ejector.
Direct recovery
Assumes the following execution technique:
1. Preparation of the cavity:
- Restoration of the front teeth.
- Restoration of the posterior teeth.
2. If pulp is opened, it must be protected. Apply calcium hydroxide and cushioning material.
3. Matrix placement:
- Restoration of the front teeth. Plastic, tape or molded dies can be used.
- Restoration of the posterior teeth. Place the matrix and fix it. This can be done after the enamel is etched and an adhesive is applied.
4. Adhesive system. It is necessary to follow the instructions for the selected system when pickling, primer treatment, application of adhesive and polymerization.
5. Preparation of the composite:
- With a syringe. Squeezing the composite onto a special bar for mixing, the syringe is closed, and the material is protected from sunlight.
- Disposable capsules.
6. Application of restoration material:
- It is necessary to apply and polymerize the material gradually, in small layers.
- The cavity must be filled with excess material so that the composite is distributed beyond its edges.
- It is necessary to exclude hit of light on the working field.
7. Light curing process:
- Filtek Z250 material cures only in light.
- It is necessary to use a high-intensity device for light curing. Keep the LED as close as possible to the restoration material. The duration of exposure depends on the shade.
8. Processing the composite. Use boron and finishes to remove excess material. Occlusion is determined using carbon paper.
9. Grinding and polishing. The final point. Restoration is considered completed after final surface treatment.
There are other techniques for working with composites.
Indirect Restoration
Indirect restoration includes the following steps:
- Preparatory work, as described above. Shade selection and surface cleaning.
- The tooth is processed under the selected type of design.
- The impression is taken.
- A gypsum model is made in the laboratory.
- A layer of separator is applied to it so that it can be easily removed.
- As with direct restoration, the composite is applied in layers.
- The design is polished and tried on to the model.
- The prosthesis is installed in the patient’s oral cavity and fixed. If necessary, then return to the laboratory.
- A non-smooth surface must be created on the inner surface.
- The prosthesis must be cleaned in a soap solution using ultrasound.
- Rinse under running water and dry thoroughly.
- Then the prosthesis is fixed to the composite cement.
Some tips on working with the material "Filtek Z250":
- Each layer is applied in layers.
- For the Filtec Z250 shade, the UD layer should be no thicker than 2.0 mm.
- Polymerization time - 20 seconds for shades A1, A2, A3, A3.5, A4, B1, B2, B3, C3, D3, I.
- Each layer should be polymerized.
- Polymerization time - 30 seconds for shades B0.5, C4, UD.
- Do not create layers thicker than 2.5 mm.
In contact with modern restoration materials, certain rules exist. This also applies to the Filtek Z250. A description of the intricacies that must be taken into account when working is discussed below.
Rules for working with material
It should be borne in mind that "Filtek Z250" contains methacrylates. There is a category of citizens who have a tendency to develop an allergic reaction to acrylic resins. It is necessary to adhere to the following recommendations when working with material:
- Reduce the effect of the drug to reduce the risk of allergic reactions.
- Use caution when exposed to uncured resins.
- When working with the material, it is imperative to use protective gloves and contactless equipment.
- If the filling composite gets on an unprotected area of the body, immediately wash it with running water and soap.
- Attention! Acrylates are able to penetrate gloves.
- If restoration material gets on the glove, it must be removed and discarded. Wash hands thoroughly with soap. To continue work it is necessary to put on new gloves.
- If material comes into contact with eyes or other parts of the body, rinse this area immediately under running water.
- With prolonged contact of the material with soft tissues in the oral cavity, rinse the area with plenty of water as well.
- Work time with restoration material should be reduced to a minimum.
- Syringes with composite should be stored at room temperature in tightly closed boxes, without access to light.
Analogs of the material
There are composites that can be considered an analogue of "Filtek Z250", but they have some differences in composition. This is FiltekUltimate, the Filtek Z550 nanohybrid.
The FiltekUltimate series is characterized in that the composition includes additional polymer resins:
- Bis-GMA.
- Bis-EMA.
- UDMA
- TEGDMA.
- PEGDMA.
This is an improved formula that has positive qualities:
- Lower shrinkage.
- Differs in high durability.
- Perfectly polished.
- The effect of the "chameleon".
- For a long time after the restoration of the tooth shine remains.
- Higher quality recovery.
Modification of the Z250 series is the Filtek Z550 series. Nanoparticles were added to the composition, which improved the properties of the material:
- Work has become even easier and easier.
- Strength is higher.
- Plasticity has increased.
- Easy to model material.
- It has become more convenient to apply to the surface.
But some qualities remained the same:
The precautions with these materials are the same as with the Filtek Z250.
Cost and acquisition of material
The price of the Filtek Z250 kit depends on its configuration. There are kits from the trial series SingleShade and DualShade. Their cost is in the range of 10,000 rubles.
The Filtek Ultimate set costs between 22,000 and 25,000 rubles.
You can purchase one syringe with a composite. The cost is from 2300 to 2500 rubles.
For a patient, the cost of fillings from Filtek material depends on the volume of restoration work. So, the price of one tooth is in the range of 1500-1650 rubles.
You can purchase the Filtek Z250 kit through official companies that are distributors of the ZM ESPE company. So there is a guarantee to avoid fakes. The goods are ordered directly from the manufacturer. Corresponding contacts can be found on the Internet on the official website of the company.
There are also various promotional offers that will allow you to purchase Filtek Z250 goods in bulk at lower prices.
There are representatives of 3M ESPE in many countries. So, you can order "Filtek Z250" in Belarus in bulk through a distributor company, directly from the manufacturer's factory. Or purchase in the distribution stores of the company's products.
Material Reviews
About Filtek Z250 Dental reviews are mostly positive. It is easy to work with, it is very plastic and durable. Allows you to achieve a good aesthetic result. It can be used for restoration of teeth both frontal and lateral.
Filling material is very popular among dentists. It is used in almost every clinic.
Patients who chose Filtek Z250 fillings for restoration give only positive feedback. They note the durability and aesthetics of the material, as well as good resistance to abrasive substances. Restored teeth can hardly be distinguished from their own. The lead time is much shorter than before.
Once a year, a routine examination and professional oral hygiene are necessary. This also includes polishing installed seals or other structures. Patients need to observe oral hygiene and pay attention to dental care. The service life of the Filtek Z250 material is 3-4 years, but with proper care, such fillings last much longer.
Regular and thorough dental care will help to maintain their health for many years. But if problems arise, it is better to immediately contact a specialist, so you can avoid serious complications and save on filling the seal. When choosing a filling material, it is better to focus on its quality, and not on the cost.