Golovna Candles for hemorrhoids The sandwich technique is a cheaper and quicker method of restoring chewing teeth in an economical crisis. Expanding the possibilities of direct aesthetic restoration of the frontal group of teeth using sandwich technology Linear and sandwich technology pl.

The sandwich technique is a cheaper and quicker method of restoring chewing teeth in an economical crisis. Expanding the possibilities of direct aesthetic restoration of the frontal group of teeth using sandwich technology Linear and sandwich technology pl.

Sandwich technology is seen as an alternative to adhesive technology. It is based on a double-ball filling (similar to a sandwich). In this case, the dentin is restored with glass ionomer cement, and the enamel with a composite.

The most commonly used sandwich technology is a combination of two permanent filling materials:

– sloping cement/composite;

- Compomer/composite;

– hybrid composite/micro-surface composite.

The sandwich technique can be used in most cases of filling with composites, but it is especially indicated for filling defects in the neck or root of a tooth, large volumes of carious emptying, and renewal of pulpless teeth.

This method is expected to be superior to non-carious lesions of the hard tissues of the teeth, if the enamel and dentin are pathologically changed and the adhesive systems, disturbed by the normal dental tissue, do not provide sufficient dental adhesion of the filling.

The sandwich technique is also indicated in cases where it is impossible to achieve complete drying of the carious cavity.

Stages of filling using the sandwich technique:

1. Cleaning the tooth from the stain

2. Selecting the color of the filling material

3. Preparation of empty caries

4. Tooth isolation

5. Medicinal treatment and drying of carious emptyings

6. Gasket cover

Regardless of the high bioavailability of layered cements, cover any empty sections with a calcium hydroxide-based lining. After this, the dentin is restored with layered cement with such a structure that the thickness of the ball to the composite on the chewing surface is no less than two millimeters.

There are 2 options for applying a gasket made from SIC (Fig.95):

A) “Closed” sandwich - the gasket does not reach the edges of the empty mouth and after applying the composite does not contact the middle of the empty mouth.

B) “Hard” sandwich – the gasket overlaps the empty wall, contacting the middle of the empty mouth. This method most often fails when filling empty spaces of class 2, especially with subgingival retouching of the empty space and the inability of full-fledged drying for penetration into the empty space. The contact point may be treated with a composite.

Small 95. Laying the gasket during the sandwich technique for filling carious empty spaces: a – “closed” sandwich; b – “sweetened” sandwich

7. Protruyuvannya

After the SIC has hardened, the agent that sprays is applied to the surface of the enamel and gasket.

Set the running hour to no more than 30 seconds. Then the empty waste is washed with water and dried in the air. Microhair is not only the surface of the enamel, but also the surface of the layering pad. Further filling is carried out using the primary method of curing composites.

8. Application and polymerization of enamel bonding agent

The adhesive is applied with a spray on the pierced enamel, the surface of the layer-onomer gasket and evenly distributed along the empty surface.

Since SIC covers the entire surface of the dentin, the application of dentin adhesive to the dentin adhesive is not sticky.

Polymerization is carried out depending on the method of polymerization (chemical or photohardening).

9. Empty application and hardening of composite material

10. Residual filling material

11. "Rebonding" ("postbonding")

12. Fluorization of the tooth that is being restored.

When sealing “classic” and water-hardened SIC, filling using the sandwich technique is carried out at the 2nd stage. In the first vent, all empty parts are sealed with SIC. In another procedure, parts of the glass ionomer filling, such as the enamel, are removed, then etched and filled with a composite. If this rule is not adhered to, the composite, which quickly seals the bond with the layered spacer, “vibrates” the “immature” SIC from the bottom of the empty chamber due to the polymerization of shrinkage. This will lead to the creation of a negative pressure under the filling, “retraction” of odontoblast bodies at the dentinal tubules, damage and death of these tissues, postoperative sensitivity, microbial invasion into the pulp and development of finger deformities (pulpitis, periodontitis).

Filling carious empty spaces using the sandwich technique in one chamber allows for the curing of hybrid SICs for double and triple hardening.

Positive aspects of sandwich technology:

1). The SIC ball plays the role of a shock-absorbing pillow underneath

Tendite composite, thereby increasing the value of the filling.

2). The stagnation of SIC as a basic laying is a major problem

adhesion of fillings to dentin – between cement and hard tissues.

the chemical bond is established, and with the GIC composite it creates a mixture

micromechanical connection.

3). The presence of fluorine in the scloionomer reduces the hardening.

hard tooth tissues, which reduces the risk of secondary caries.

4). Covering the composite with a SIC ball allows you to insert such

There is a small amount of layer-forming cement, as the resistance to abrasion is low.

5).The application of a thick (basic) gasket made of SIC allows for changes

obligations of the composite material, what to introduce, what to change

polymerization shrinkage of the filling, reducing internal stress and the possibility of deformation of the filling, replacing the wastage of expensive composite material.

6). The drying of the gasket from SIC allows for improved aesthetics

a filling is applied due to the natural opacity of the stenoid (dentine has a good reputation).

7). In a number of clinical situations, the stagnation of sandwich technology is greater

It is important to use a non-adhesive technique, for example, when renewing defects in the area of the neck and tooth root, including enamel.

Realize that your denture is as unnatural as your real teeth. There is no longer any need to fix it with glue, remove it before bedtime, and clean it after skin treatment. You feel the relish of being in love and are not afraid to laugh. All this is really due to innovative sandwich-type structures.

The virus is composed of a solid base that has a clear edge and a bed with pieced teeth. Such a body has special supports at the ends, which are placed on the supporting teeth that have been lost, which ensures reliable fixation.

Indications before the installation of a significant sandwich prosthesis

“Sandwich” is a significant new-generation dental prosthesis. Its main feature is the presence of the “sky”, like a solid partition.

Standard prosthetic plates, which are used for partial or complete absence of teeth, completely cover the surface of the palate. This creates a number of insufficiencies: disruption of the mucous membrane, loss of taste sensations (“approximately 40% of taste receptors are affected”), impaired diction, etc.

The “sandwich” type design does not overlap or overlap the palate.

Sandwich prostheses are indicated in the following cases:

Obviously I would like 2-3 “live” teeth on the side sections of the crack;
If you haven’t lost any teeth at all, then you obviously want 2 good roots (metal crowns are installed for support, and then the body of the prosthesis is fixed on them);
contraindications before implantation (insufficient bone tissue height, blood diabetes, blood disease, etc.);
movement of the vomit reflex, through which it is impossible to wear a plate-part prosthesis.

The sandwich design is not attached to the front teeth through those too massive centers that ruin the aesthetics of the smile.

Installation stage

Installation includes only 2 stages:

Sanitation of the oral cavity (cleaning up carious cavities, inflammation of the mucous membrane), X-ray diagnostics, removal of dental ulcers.
Trying on the finished model, if necessary, adjustments for ideal comfort.

Prepared

The model is prepared in a dental laboratory, including the patient’s individual teeth. It takes 7-10 days for the production to take place. As a matter of fact, the materials of the Italian vibrator are being studied.

Please be assured that the technology for producing the “sandwich” prosthesis is protected by a patent of the Russian Federation. That’s why we only have them in one Moscow clinic.

Pros and cons

Obvious advantages of sandwich dentures:

light and handy;
do not cry out for boredom, do not change the taste of hedgehogs;
The value is equal to clasp metal dentures;
strong fixation with additional design features;
the number of metal bolts and other additional fasteners to give a new look;
there is no need to grind or depulp the supporting teeth;
You can easily fix the virus if it breaks.

Among the minuses:

high price;
There may be a local allergic reaction to the material.

Looking after the prosthesis

It is recommended to clean your dentures on the day of your pregnancy and in the evening. For this purpose, the primary solution is a toothbrush and toothpaste without abrasive particles. Regular cleaning will help eliminate bacterial buildup, which is the cause of inflammation in the mouth.

It is not easy to tighten the prosthesis. However, disinfect it approximately 2-3 times per week using special effervescent tablets (Corega Tabs, Lacalut Dent, Protefix). Dissolve one tablet in a glass of water at room temperature, place the denture on 10-15 inches, then rinse with running water.

Disinfectant tablets for dentures

meal parts

How long does it take to get a prosthesis?

The adaptation process takes only 2-3 days, for example, the formation of plate-shaped viruses takes the least amount of time.

What is the meaning of the age-old exchange?

No, “sandwich” dentures are suitable for patients of different age groups.

How long is a prosthesis?

The construction is made from 7-10 years of use for the construction made of high-quality plastic material, the term of operation is also subject to strict hygienic consideration.

Prices

Imported materials are expensive, so the cost of a “sandwich” denture starts at 40,000 rubles.

However, you can absolutely consult with an orthopedist to understand whether this option is right for you.

Our website also contains information about other popular types of dental prosthetics. A search system has also been created for you to quickly select a clinic or specialist.

1. Filling in one way from the hardening of hybrid layer ionomers of double and triple hardening.

2. Filling in two stages using “classical” and water-hardening layering agents. In this case, in the first part, the entire empty space is sealed with slab-dimensional cement. In another case (after 24 years), the removal of parts of the sloionomer filling, similar to the enamel, as well as etching and filling with a composite material are carried out.

3. Modified“sandwich technology” from the combination of “classical” and water-hardened layer ionomers and fillings in one direction. This technique is based on the fact that after preparing the empty surface, the enamel and dentin are rubbed, and then SIC is applied, then an adhesive can be applied to the new area, without having to pass through, rinse with water and dry the surface of the “underripe” wow” SIC.

When the modified “sandwich technique” is cured, first of all, the cement, which is not yet hardened on the surface, compensates for the polymerization shrinkage of the composite due to its increased elasticity and “excessive” flatness. Otherwise, the bath will end in one section. In the country, the “unnecessary” sire does not get with the acid protrusion, ni was the wake of the water, ni Visushuvannya, and the optimal fork for the yogo hard-bell Ruinvannya Matereal on the intercom composite Zub.

Thus, today, in a number of cases, dentists can rely on a dental drill, which, undoubtedly, is an incentive for patients to sanitation of the oral cavity, for the sake of good health. to the body.

1. ELECTRONIC VERSION OF THE PROFESSIONAL RUSSIAN NEWSPAPER “DENTISTRY TODAY”. No. 2 (24), 2003 Republic: Article: Universal SIC of the Vladmiva company. http://www.dentoday.ru/

2. The principle of minimally invasive therapy, V.A. Tishchenko, dentist. http://www.mediastom.ru/

3. Atraumatic treatment for dental caries, G.M. Pakhomov, V.K. Leontyev; TOV "Proektsiya"

4. Dentistry: Pidruchnik. / Edited by professors V.N. Trezubov, S.D. Arutyunov. - M.: "Medical Book", 2003. - 580 p.

5. Priorities in dentistry. For materials to the magazine "Clinical Dentistry". http://www.zdorovie-m.ru/

It is no secret that one of the main indicators of a dentist’s work is the absence of complications after treatment and a long-term positive result. However, when restoring the teeth of the chewing group, the ergonomics of the robot are not always important, since when the chewing teeth are renewed, the volume of the robot is important, while the work takes a lot of time.

The basis is the technology of restoration using composite materials. And all these methods of restoration of chewing teeth were developed in order to minimize the stress of polymerization, shrinkage and folding that arises from it. Let's look at everything in order.

Restoration techniques:

Bertolotti's direct shrinkage technique: two-thirds of the empty shell is filled with a chemically hardened composite, and the back is filled with a photopolymer. On the right, in chemical composites the shrinkage is straightened at high temperatures - up to the dental pulp in that area. This technology is outdated and is practically not used today.
Direct polymerization technique. The shrinkage of the photopolymers is straightened at the back of the light source, so that the composite is not exposed to the empty walls, the light-hardened skin portion of the composite, which does not have to exceed 2 mm, occurs through preservation of tooth structure. It is also necessary to thoroughly clean the contact surfaces as they promote renewal.
U-like material application technique. Covered with three-point fixation using a composite and preventing the tightening of the tooth cusps. Relevant even in very small empty spaces.
Technique of horizontal layouts. The composite is introduced into the empty tank with horizontal balls with a thickness of more than 4 mm, parallel to the bottom of the empty tank. Relevant only for packaging composites.
Technique of leaf restoration. It follows a number of goals: to avoid nanofilling after adhesive treatment of tooth tissues, to minimize shrinkage, to fill uneven surfaces of prepared parts and to improve the adaptation of further portions composite to the tooth tissue. The empty space is filled to the dentinal-enamel interface with a light-flowing photopolymer of thickness less than 1 mm, then the volume of the empty space is replenished with a microhybrid or packaged composite.
CBC-technique (composite bonded compomer) - combined bonding of a compomer and a composite. Nini is not relevant.
Sandwich technique with vicoristic layered cements: the volume of tooth dentin is restored to SIC with classical, flexible or triple hardening; The occlusal surface and area of the contact point is a microhybrid or packaging composite.

The widest range of these techniques is the technique of leaf restoration and the technique of open and closed sandwich. The skin was not finished enough; Of course, in dentistry it is important to know absolutely thoroughly what needs to be avoided. In addition, new developments are appearing and technologies are becoming more sophisticated. bud. All this is strongly straightened, on the one hand, reducing the shortcomings of the previous versions and easing the work of the doctor, on the other - those to relieve the patient.

The widest range of restoration techniques is the leaf restoration technique and the open and closed sandwich technique. However, the skin was not enough for them
I would like to look in more detail at the shortcomings of the stagnation of sandwich technology with the vicoristan SIC. On one side: a chemical bond with tooth tissues and fluoride; the proximity of the thermal expansion coefficient of the material to the thermal expansion coefficient of hard tooth tissues; there is no need for absolute isolation of the surgical field; Otherwise, there are a lot of shortcomings. First of all, the indicators of chemical adhesion to hard tissues are low (2-8 MPa for chemical CICs and 8-12 for hybrid ones).

Damage to the structure of the glass ionomer during conditioning, which must be carried out in a binding manner, since the GIC is overlapped with the photopolymer. A high risk is introduced from the bottom of the empty tank during the process of polymerization of the surface ball of the composite. It’s time for the polymerization of the chemical skloionomer.

The disorganization of SIC under the influx of oral fluid, the short term of service and unsatisfactory aesthetics, roughness, foldability of polishing. On the right, the hardening of classical CICs depends on the type of ion exchange reaction: water ions present in the aqueous solution of polycarboxylic acids exchange with calcium ions and aluminum ions, which enter the powder C IC, so that they bind the hydroxyl group of polycarbonate to create the IC matrix , in such scattered pieces of glass that did not react.

At the cob stage, calcium polyacrylate lanyards are solidly formed (the reaction collapses to tens of strands), but the lanterns can be broken in the water, so the filling from the CIC may be protected from water for an hour highly hardened. Then they react with aluminum, which adds value to the structure due to the cross-linking of the polyacrylate straps, and a spacious structure is created. This stage itself involves the residual molding of the cement matrix. The completion of this phase occurs in 2-3 days for classic SICs, and in 40 seconds for hybrid ones. The residual structure consists of glass particles, sharpened with silica gel and spread in a matrix of cross-linked molecules of polycarboxylic acids (metal polyacrylate).

In hybrid SICs, with a second and ternary mechanism, the hardening of the first stage of combustion occurs due to the photoinication of terminal radicals, and the other - like in classical SICs. The advantages of hybrids are in the reduced physical and chemical authorities, and not only in plots inaccessible to photoinitiation, it is confirmed by the structure of the classical chemical reaction. The SIC is triple hardened in the warehouse and has a microencapsulated redox catalyst, which provides an additional photoactivation reaction to the self-curing composite warehouse cement, and also activates the priming agent.

Thus, for all layered cements, the process of complete hardening is not completed in one day, which entails a low intricacy in the work of the doctor and the possibility of culpable complexity:

Toxicity in relation to the pulp is due to the toxic action of ion water with a length of 1 dose, since the hardening reaction has not yet taken place.
Expansion of hybrid SIC when hardened by 3-4%.
The appearance of microcracks when dentin is overdried.
The appearance of postoperative sensitivity, affecting the hydrophilicity of the GIC, the dentinal tissue of the tooth before the filling, due to the dehydration of the dentinal tubules, and, apparently, subdivisions of odontoblasts are formed stiv.
The need for absolute isolation of the surgical field during the stagnation of hybrid SICs.
When using SIC for sandwich technology, the process of conditioning the surface of the cement with orthophosphoric acid is brought to the above-ground surface roughness, which facilitates the adaptation of the surface ball to the composite.

Insanely, it is difficult to be aware of the stagnation of the SIC, because of their positive powers: biocompatibility with tooth tissues, good regional adaptation, low modulus of elasticity, close to dentin, bioactivity (diffusion fluoride ions in the dental structure) are essential in various clinical situations.

The main positive effects of SIC: biosensitivity from tooth tissues, regional adaptation, low modulus of elasticity, close to dentin, bioactivity
There is a problem that deserves attention, namely, polymerization of shrinkage and its successor - polymerization of stress. Such complications during the restoration of chewing teeth, such as the destruction of the marginal adhesion of the material to the tooth tissue, the loss of bumps and cracks in the enamel, as a result of the restoration, marginal preparation, cohesive fractures in the middle of the structure of the material, post-operative pain, etc., associated with polymerization. Adje himself, in empty 1st and 2nd class, has the highest C-factor.

It is important to understand that polymerization shrinkage of the photopolymer means a change in the material's strength during the polymerization process, which is practically a mitt in 1-2 seconds. In order for a chemical reaction between the monomers to occur, it is necessary to separate the components closer to one to one, which physically shortens the polymer bond. If the material is harder, it becomes increasingly important for the excess monomers to collapse one by one, and thus the internal surface stress of the entire system is to blame.

This stress, or support for further shrinkage of the composite as a whole, is called polymerization shrinkage stress. This indicator lies not in the shrinkage itself, which can be minimal in some composites, but in the amount of excess monomers that have not reacted, which is the stage of conversion of the material.

To control the relationship between shrinkage and stress, techniques of direct polymerization of the composite, spherical application, soft start, etc. were used. In this case, restoration is limited by polymerization stress.

One of the ways to combat polymerization stress is the curing of composites with low shrinkage and low polymerization stress in bulk restorations. This material is a new composite, developed by Dentsply™, - SDR™: a smart dentin substitute - a one-component fluoride radiopaque composite material. Disintegration for hardening is the basis for restorations of classes 1 and 2. It has performance characteristics typical for flowable composites, but can also be applied with 4 mm balls with minimal stress polymerization. It has the power of self-verification, which allows for precise adaptation of the material to the walls of the prepared empty material. Available in one universal shade, it can be coated with any methacrylate-based composites.

In SDR™ technology, an innovative chemical compound - a polymerization modulator - was introduced into the organic matrix. This chemically increases the fluidity of the polymerization reaction, which enters the stage of conversion of the material, and also reduces the amount of excess monomer.

This can be wisely called chemical polymerization with a soft start. The new resin gives the SDR™ composite a special consistency, so that the material itself is distributed on the surface of the empty, highly accessible area. This power is very important for modeling the contact point. The thickness of the acid-inhibited ball after polymerization is significantly less than, for example, that of the Spectrum, which, with careful adaptation of the matrix to the tooth tissue, allows you to switch off the stage of finishing the area of the contact point.

So, let's take a pouch and try the power supply that is often installed when using the SDR™ power supply:

SDR™ clinical hardening applications using open and closed sandwich technology.

Clinical episode No. 1

SDR™ + EsthetX®HD for restoration of 45 and 46 teeth (Fig. 1-10).

Small 1. Pochatkov’s situation. Small 2. After preparation and isolation of the working field.
Small 3. The area of the contact point is the cheek surface. Small 4. Modeling of the middle buccal cusp EsthetX®HD.
Small 5. Modeling of all bumps using EsthetX® HD body shade and EsthetX® HD enamel. Small 6. Installation of a contour matrix at 45 teeth.
Small 7. View from the vestibular side of the contact point modeled by SDR™. Small 8. Occlusal view of the contact point.
Small 9. Restoration is completed without final trimming. Small 10. Restoration has been completed after final finishing.

Restoration of teeth with aesthetic damage - loss of color, shape changes, restorations and obscure renovations - is one of the greatest demands of routine procedures in practical dentistry. The ideal choice for such cases today is indirect tooth renewal with the help of ceramic veneers. However, ceramic onlays can be changed in color depending on the color of the abutment teeth being prepared. Minimal preparation in contact with the overlap of the opaque supporting teeth makes it possible to create a natural tint of heavily damaged teeth to create a natural color of ceramic veneers.

The clinical success of minimally invasive preparation of ceramic veneers rests on the high precision of the tarmac material, the tarmac removal technique and the qualifications of the dental technician. Materials based on polyvinyl siloxanes (PVA) have demonstrated their ability to produce highly detailed parts in folding restorations. The extraction technique plays an important role in aesthetic restoration. For the preparation of ceramic veneers, a single-stage double-ball beating method is used to extract polyvinylsiloxane materials from cured polyvinylsiloxane materials, which are connected with retraction using a “suspended thread”.

This clinically careful description of the example of aesthetic renewal of the front teeth using ceramic veneers from the anterior detachments of a single-stage double-ball impaction.

Clinical episode

Patient 22, from a fairly hygienic empty mouth, was promptly changed to the color of the central incisor 21 and the color defect of the composite restoration on the adjacent central incisor 11 (Fig. 1). The patient required updating the aesthetics in the anterior region and closing a small gap between the anterior incisors. To update the shape and color of the teeth, as well as to create a highly aesthetic appearance, the patient was recommended to have ceramic veneers made. To analyze occlusal interactions using additional alginate material, the slit pads were removed and diagnostic models were prepared from synthetic type IV gypsum. To correctly update the contour of the central incisors, a wax setting was made.

Based on the diagnostic wax-up model, a silicone matrix was prepared, which served as a guide for the preparation of the central incisors. A minimal preparation of tooth 11 was carried out to a depth of 0.3 mm; the preparation area was located entirely in the spaces between the enamel. Tooth 21 was prepared to a depth of 0.5 mm over the entire vestibular surface. The depth of the prepared teeth was hollowed out to compensate for the gray appearance of one of the teeth. After preparation, the teeth were acid-washed with 37% phosphoric acid gel for 15 seconds, then washed and dried. An adhesive system for the total etching technique - TECO (DMG, Nimechchina) was applied to tooth 21, which was illuminated for 20 seconds. Then, in the area of the third gingival crown, the A1 opaque composite was applied to mask the gray stain. The prepared teeth were then polished with gum heads and cooked until the tartar was removed.

To isolate soft tissues, the technique of underlaying retraction threads was used. A wide retraction thread was placed near the periodontal groove and it was trimmed by 5 strands before removing the thread (Fig. 2). After the initial preparation, the teeth were washed with a water jet and dried. Depending on the size of the patient’s dental arch, a beaten tray was selected. For minimally invasive preparations, it is necessary to take precise measurements using the same technique, otherwise critical areas will not be imaged clearly. Thus, choosing a hydrophilic, solid polyvinyl-siloxane material is necessary for precise imaging of the preparation area. In addition, it is possible to benefit from the superiority of the sandwich technology in connection with high precision and the strength of the associated beater. To obtain an adequate consistency of the batter materials, it is recommended to use automatic mixing systems. It has been shown that automatic mixing of polyvinylsiloxane materials allows for emptying, reduces the risk of contamination of the material components and improves the quality of the material. manual mixing. A cartridge with Honigum-MixStar Putty (DMG) was inserted into the machine for automatic mixing (MixStar-eMotion, DMG) and the program was adjusted according to the manufacturer’s recommendation.

The pressed spoon was carefully lined with homogeneous material Honigum-MixStar Putty (Small 3). Please remember that we will renew the ends of the spoons first. Then, the Honigum-MixStar Putty material was applied from a gun on top of the base material Honigum-MixStar Putty, which was adjusted (Fig. 4). This trace is applied to the area of preparation, and throughout the entire dental arch. This allows you to correctly update the occlusal alignment on the model.

At this point, the retraction thread was removed and Honigum-Light material was immediately applied to the prepared teeth (Mal. 5). The filled spoon was placed up to the mouth. After the material had completely hardened, the pads were pulled from the mouth and twisted (Fig. 6). All details of minimal preparation have been completed (Fig. 7). With proper treatment, one can clearly see the details of the boundaries between the preparations. Moreover, the accuracy of the PVA material was confirmed in cross-section (Fig. 8). Pay attention to the penetration of Honigum-Light material into the dentition. Temporary crowns were prepared using Luxatemp (DMG) and the patient was released until the next visit.

Based on the cutouts, models with type IV plaster were created (Fig. 9). For teeth 11 and 21, ceramic veneers with a thickness of 0.3 mm and 0.5 mm were prepared (Fig. 10). At the beginning of the procedure, a preliminary design was made and ceramic veneers were tried on. In connection with the high transparency of ceramic veneers, vikor mixtures based on glycerin were used. To fix the veneers, we chose transparent cement for 11 and opaque A3 for 21, in order to disguise the change in color. After residual comfort of the structure, the patient veneers are fixed to the teeth. Restoration with additional adhesive fixation of Vitique composite cement (DMG) ensured an adequate esthetic result (Fig. 11).