Composite and ceramic veneers

What are the disadvantages of composite veneers?If there are chips with the taste of bacon, plastic panels under the tree, false nails with mother-of-pearl design, then what is worse than false teeth under pearls.

What is veneer? The best thing for an answer is to follow Kozma Prutkov: “Behold the root!”

Veneer (English) - veneer, veneer, surface layer. Veneer of culture - the appearance of culture (alas - it concerns many). When the word refers to dentistry, it simply means a thin tooth lining. Hence the different technologies for creating such a surface.

Hollywood Veneers

The cost of installing veneersIf all the teeth are healthy and the person is not satisfied only with the color or shape, then the best way out is not to do anything with them except disinfection, but try to correct the view using only thin linings, which in this case are called Hollywood veneers. For example, if two large central teeth are distinguished by their size from the others, then instead of grinding and reducing them, it is sufficient to simply enlarge with a pair of adjacent teeth left and right.

In the photo before the procedure and after the correction, it is clearly seen that striking changes are sometimes achieved by very modest means: by changing the color and minor amendments in the form. To avoid horse-tone smiles, Hollywood Veneers are made as thin as possible. up to 0.3 mm, and in order to distinguish them from the group of ordinary ones, brand names of the type are invented: lumineers, vivanira ultraniers, etc.

Veneers on teeth
How to care for veneersHow is the installation of veneersHow much time does the installation of veneersVeneers as a decoration of teethFeatures LumineersHollywood Veneers - How Reliable They AreVeneers allow you to achieve the effect of natural whiteness.Veneers are installed on live tooth enamel

Tooth defectswhich are easily eliminated by Hollywood veneers:

  • irregular tooth shape;
  • unsatisfactory color;
  • visible seal, traces of restoration;
  • enamel erasability;
  • chips and cracks;
  • gaps between the teeth (front or side).

Lumineers - thin ceramic patch plates are made individually, according to exact dental casts. They have great strength, hardness, have a beautiful appearance, have a transparency like that of tooth enamel. The durability and aesthetic qualities of ceramic lumineers justifies their relatively high cost. On the American website www.lumineers.com the price of a lumineer for one tooth is from 800 to 2000.

The cost of similar firm Cerinate ceramics (USA) in Russia is indicated: from 35,000 to 50,000 rubles. Discounts explain well-established relationships with the manufacturer. Such a high cost is connected not only with the absence of its own high-tech production in Russia, but also with very good usage statistics, and it looks beautiful and very expensive in appearance.

Composite veneers

The process of installing veneers on the teethLining for the teeth, made in the laboratory on the molds, called indirect veneers, composite or ceramic. Because of the high temperature required for ceramics, such veneers are only indirect.

Composite veneers can be made directly in the mouth, on the teeth, with enamel ground to 0.3-0.7 mm. Prepared tooth pickled with a special gel and apply an adhesive layer that binds the enamel and dentin with subsequent layers of composite material. Each layer is polymerized under the action of light of a certain wavelength, and for some photopolymers a reverse process is possible: if it is irradiated with light with greater frequency, then the depolymerized material can be washed off with a solvent.

After the color is selected and the desired tooth shape is formed, it is machined with cutters, ground and polished.The whole procedure can be completed in one session - this, along with the relatively low cost, is the main plus of direct (on-site) composite veneer.

The list of disadvantages of this restoration layer is much longer:

  • composite veneers are noticeably inferior to ceramic in strength;
  • possible color change under the action of vegetable dyes;
  • over time, the border of restoration with composite veneer may appear;
  • low service life: every 5 years it is necessary to repeat the procedure.

With a large number of problematic teeth, the procedure is delayed and even a lower cost does not justify the direct method.

The shiny surface of composite veneers loses smoothness relatively quickly and requires re-polishing.

Indirect composite veneers are manufactured in the same way as ceramic in laboratory conditions, and their strength may be higher than that of those made on site. Strength and aesthetic properties of composite materials depend on the size of the particlesits constituent, and the change in the size of the grains causes conflicting changes in properties.

Some features of composites

With a particle size of about 30 microns, a material with maximum strength is obtained, but with the worst aesthetic content: it cannot be polished and dims quickly. When the particle size is 3 orders of magnitude smaller (from 0.04 microns), everything happens smoothly and vice versa - perfectly polished, color-resistant surface has insufficient strengthsuitable only for sealing. We have to choose not quite the golden mean - hybrid composites with particles up to 2 microns.

Among other things, straight composite veneers require a lot of experience and skill from the doctor: it is easy for the sculptor to make the desired shape of the tooth and choose the color, but not for any doctor.

Conventional contraindications also apply when installing composite veneers:

  • thinned enamel;
  • straight bite;
  • gnashing your teeth like a steady habit;
  • movable teeth;
  • caries and inflammatory processes to cure.

The cost of composite veneers, depending on the clinic and the complexity of the procedure is from 2500 to 15000 rubles. In most ordinary clinics, the average price range is much smaller: straight veneers from 4 to 6 thousand rubles. But in the composite, even under ceramic veneer, after 5 years defects may be detected, that is, it is the maximum service life of such material.

Ceramic veneers

How to choose veneersHollywood veneers, as the most benign option, of course, the most preferred, but not always possible to do without turning the enamel. This procedure is not as simple as it may seem: all edge points, especially at gum require almost jewelry accuracy and good modern tools. The service life of ceramic veneers, that is, everything on the conscience of a particular doctor, depends on the thoroughness of the turning and subsequent processing of the teeth.

Reliable statistics on how lucky the average Russian patient is with this are unlikely to exist. In other countries where the discipline of performing such procedures does not cause such doubts, sample surveys are conducted patients. For example, in Belgium, ceramic veneers were tested after 5 and 10 years of operation.

As a result, it became clear that after 5 years of using veneers, the probability of negative effects is noticeably increasing: secondary caries, edge permeability of the adhesive, and other easily removable defects. In some cases, serious deficiencies in the performance of clinical procedures were indicated as a reason. (This is in Belgium!). After 10 years of operation, only 4% of ceramic veneers were in perfect condition. Most of the defects found were easily removable.

The relationship between Russian doctors and patients is incomparably different from European and American orders.The responsibility of our dentists to a gangster or official may be disproportionately higher than to an ordinary patient, even in the case of a trial. In addition, some of them came to this profession only because of the opportunity to earn good money, not looking at their abilities.

Despite this, good doctors still exist with us, and they should be looked for, having decided on an expensive procedure with veneers. Only a conscientious doctor can justify the high price of beautiful smiles. Ceramic veneers on carefully prepared teeth will last for many years, but still a periodic inspection should be a mandatory procedure, as well as personal hygiene.

Implantation

Veneers

Crowns