How to make composite and ceramic veneers on the front teeth and reviews of patients with photos

Dental micro-prostheses made of composite materials or ceramics are called veneers.They cover the front wall of the tooth, visually visible with a smile, and give the teeth an even and aesthetic appearance, improve the color of the darkened incisor, without making it different from the rest of the series.

Veneers differ from the usual crowns in that they are not located on the whole surface of the tooth, but only on its front wall and cutting edge.Conventional veneers make 0.5-1.6 mm thick , but there are ultrathin microprosthes, about 0.3 mm thick.They are called lumineers, the characteristic feature is that the teeth do not require grinding.

Methods of restoration of the tooth by filling or restoring the color by bleaching method are a thing of the past, as you can get an aesthetic look only by installing veneers.

When is the installation of the veneers shown?

Veneers are installed without a reason if a person wants to have a Hollywood smile, and in other cases there are more specifically indications for the installation of microprostheses:

• if the tooth is naturally ugly( curved teeth);
• expressed genetic yellowness of incisors( tetracycline teeth);
• color changed after depulpation;
• there is a persistent erosion of the enamel, there was a chipped tooth for various reasons;
• ugly gaps between teeth, turned, bored incisors;
• in the case where other methods of restoration did not give the desired result.

What are the contraindications?

In some cases, the dentist may recommend restoring the teeth in another way, and should be discarded from the veneer installation if:

• has a reverse or direct bite in the patient;
• person is engaged in boxing or other sports that lead to tooth decay;
• in the oral cavity there are no chewing elements( sixth, seventh, etc.);
• has bad habits to use incisors for other purposes, for example, snacking threads, gnawing nuts and seeds, biting nails, etc.;
• the inner surface of the tooth on the tongue side has a strong fracture or seal located in this area, large;
• was previously treated with resorcinol-formalin.

Some people have a thin enamel on their teeth from nature.For the installation of the veneer, part of the enamel is removed and the microprosthesis in this case is attached to the soft dentine , which has a small strength.Sometimes the doctor advises the installation of lumineers, under which tooth treatment is not needed.On strongly damaged by the destruction of teeth, you can put a crown of porcelain, and the rest of the incisors use veneers, picking up the restoration elements in one color.

Classification of veneers

Their subdivision into species takes place depending on the material from which the restoration element is made.

Ceramic plates are made of zirconia and porcelain for medical purposes.This species is most common among dental patients, because it is strong, and the color does not change after many years of use.Ceramic micro-prostheses have a thickness of no more than 0.3-0.5 mm and are not distinguished by external features from natural incisors.

Composite veneers, the reviews say that they are outdated in terms of effective use of , as the limitation of the period of use and the lack of aesthetics make them not very popular on the dental market.

Ceramic microprosthes made of porcelain are classified as Hollywood laminates.Their thickness is only 0.2 mm and they are more durable than porcelain plates.The method of their installation does not require a tooth edging, in some cases the installation of veneers is performed on existing crowns.

Methods for the manufacture of veneers

Ceramic microprostheses

Manufacturing technology provides two options:

• deposition of ceramic material layer by layer with further roasting, so is unpressured ceramic;
• is the most common pressed ceramics, in this case casting is formed under the influence of high temperature, such products have a longer service life than non-pressed elements.

First the tooth is grinded to install the veneer, then a mold is made from a special quick-hardening mass, whereby the microprosthesis is modeled on the computer.The grinding of the element is done on a special machine that performs the process without human participation.The internal surface of the veneer is treated with the tool to apply a rough surface, which will allow a stronger grip.At the time of manufacture, the tooth is protected by a temporary laminate.During the installation, it is removed, and the veneer is fastened to the cement, which is applied to the inner surface of the plate and the tooth.

Composite microprostheses

Veneers made of composite materials are produced using two technologies:

• Are made on site in the dental office and are called direct or therapeutic elements.The doctor after removing the laid layer of enamel on the front wall on one layer applies a light-polymer composite on it, gradually restoring the surface, correcting the defects.
• Ready-made veneers made of composite materials are manufactured in the laboratory, and a mold is made on the pre-turned tooth in the doctor's office.After the veneer is made, it is attached to the tooth from the front.

Characteristics of composite microprostheses

Patients who installed composite veneers note a number of disadvantages of .Dentists' comments indicate that the elements performed directly in the technical laboratory exceed those that are superimposed on the dentist's office.But in more than 90% of cases the doctor makes composite veneers in the oral cavity of the patient.The superimposed layer on the anterior and incisal parts of the tooth is an extensive seal at a price much higher than the standard restoration.

In the office, the doctor only removes the enamel layer, turning the cutter under the veneer, and the technician on modern laboratory equipment gives it the required color shade and transparency.The quality of this type of installation will be higher, but the composite plates will never equal the appearance of with porcelain or zirconium products:

• The aesthetic look is far from perfect, which can be given a smile with more successful porcelain and ceramics.Sometimes, after replacing a not very successful restoration with composite veneers, the difference from the natural color of the remaining teeth in the oral cavity can be traced, and the surface quality of the element is insufficient.
• The color stability leaves much to be desired, because after a while, the elements become dull and the shade becomes darker.Ceramic veneers and ceramic plates do not have such drawbacks.
• The strength of the material plays a crucial role when the veneer is manufactured taking into account the overlapping of the cutting edge.But veneers from composite components do not cope with this very well, the constant biting and chewing of their products destroys with time.Products made of pressed ceramics, and even more so zirconium, are much stronger and do not undergo deformation.
• The technology of layered insertion of veneers in the medical room does not allow to achieve the desired shade under artificial light, the increased humidity of the tooth surface reduces the quality.In practice, the dentist uses almost fifty colors and shades, making choice difficult.But even a successfully executed veneer can not compete with other types of materials.

Veneer installation technology

For the quality manufacture and installation of veneers, the reviews state that should follow all technological guidelines:

• At the first preparatory stage, the inspection is performed and old seals are identified, which are almost always to be removed.The surface of new seals will create adhesion( adhesion) when in contact with the veneer body.
• The next step is to select a color that is set according to the wishes of the person on a professional hue scale.
• Dissection of the tooth is called its grinding, at the same time it removes from 0.5 to 0.7 mm of the surface enamel on the front wall and the installation of new seals after removal of the old ones.
• The manufacture of a tool or a series of teeth is the next step, after which the transfer of material to a technical laboratory.
• Simultaneously, a temporary veneer is made of plastic, which is intended to protect the tooth from aggressive action during the manufacture of a permanent microprosthesis.
• Technicians in the laboratory for the removed casts poured from the gypsum mock tooth, then using a computer program produce a veneer.Porcelain is made by injection molding, or zirconium plates are sharpened.
• The installation of micro-prostheses is carried out with the help of special pastes having different colors.Choosing the right shade of cement is very important, as it affects the subsequent color of the tooth.To successfully determine the color, sometimes alternate several layers of different shades, then the veneer is set permanently.At this stage, you can make claims to a specialist in the matter of a failed color.If the veneer is already fixed by the composition, then it is too late.

Positive qualities of

ceramic microstrokes The photo shows that ceramics are much more suitable for creating veneers against composite materials:

• plate has a beautiful glossy aesthetic appearance;
• after long years of wearing products, they will not lose color, yellowness and tarnish is not inherent in this material;
• ceramic veneers are highly durable for wear, which indicates great reliability, the shelf life of the plates is not limited by the time frame;
• plates from this material are fully compatible with the human body and do not cause allergic reactions.

But has some drawbacks to in the installation of ceramic veneers:

• , in contrast to composite ones, requires more time for manufacturing, as the first layers are laid in place in the medical office, and the ceramic is made in the laboratory, which increases the duration of the service;
• compared to composite microprostheses, ceramic plates have a higher cost;
• such products are put almost forever and are not repaired, can not be removed.

How to care for veneers?

Special individual care veneers do not require , the only condition is hygiene, daily brushing or dental flossing.These recommendations are needed to preserve the shiny surface of the plate.The use of food products that color products in bright and persistent colors, it is recommended to avoid, for example, pomegranates, cherries, coffee, strong tea.

Do not use front incisors for other purposes, for example, for opening metal covers on bottles, there are certain devices.If you crack nutshells or engage in boxing without special protection, no matter how strong the veneers are, they will collapse from such treatment.For preventive professional examination, you should visit the dentist's office at least once every six months.