- July 19, 1403 - cover -

All-ceramic dental crowns are made of very resistant materials, and there is no need for an underlying frame to use them....Full-ceramic crowns are used to improve the smile design when the goal of aesthetic treatment and restoration of the lip is filled and broken. Zirconias have high strength, durability and durability, and their edges do not darken or change color easily... In fact, ceramic dental crowns in addition to restoring your teeth also give you a beautiful gift.... ### What is an all-ceramic dental crown?.. As their name suggests, all-ceramic crowns are made of glass-like materials such as porcelain in all their thickness and structure... unlike metal crowns or PFM crowns, which are metal in their structure. are, metal is not used in ceramic veneers and they are made entirely of ceramic.. It creates a higher beauty than metal ceramic veneers (PFM) and has the same reflection and light transmission as teeth.. The most important advantages of dental ceramic veneers compared to PFM veneers are: ##### High biocompatibility Due to their high biocompatibility, all-ceramic crowns do not cause any allergic reactions in the body... If metal-ceramic crowns may have allergic reactions to some metals, including nickel... Also, the types of ceramics used in all-ceramic crowns cause the same amount of enamel wear on the opposite teeth, while in metal-ceramic crowns they are used on the opposite teeth.. time.. this problem is especially when that the enamel layer on the cover is separated, it is aggravated.... For this reason, in the third stage of making the veneer, when the ceramic is placed on the metal, this step must be checked separately in the mouth and its additions removed, so that finally, in the last stage, the veneer prepared in the laboratory is sent to the clinic so that there is less space for people to make a change in it. integrated) which are made in one piece and without using different ceramic layers, can be made in less thickness but with proper strength.. to cut and remove more of the tooth tissue... ##### Natural beauty with the same optical quality as teeth The bright, clear and shiny appearance of a natural tooth is created by the penetration of light into the tooth enamel layer and then its reflection outside.. The purpose of researching and making ceramic veneers has been to imitate such an effect and recreate it in the veneer.. In general, the thicker and more transparent the tooth, the thicker and more transparent the ceramic layer used in it will be. that the natural appearance of the teeth And its transparency imitates it, they are not able to: - **The metal frame under the ceramic prevents the penetration of light.** ** To cover the gray color of the metal, a matte layer (which is chalky white) must be placed on it... As a result, the thickness of the ceramic layer will be reduced and thus the final coating will not have the transparency and natural appearance of the tooth.** ##### Maintaining beauty near the gums In metal-ceramic veneers, the underlying metal structure also creates another problem, and that is the possibility of the metal edge appearing in the vicinity of the gum... This problem occurs especially when the gums suffer from decay... In all-ceramic veneers, despite the integrated ceramic structure, there will be no concern about the possibility of such a problem.. Coatings? When it comes to durability and long-term durability of veneers, especially some types of veneers are less strong than metal veneers and metal-ceramic veneers and are more prone to cracking and breaking.. Of course, it should be noted that all-ceramic veneers are divided into different types based on the ceramics used in them.. High strength must be used.. ##### Higher cost The cost of dental ceramic veneers is higher than other veneers because the quality and quality of the materials used in it are better, and its manufacture and preparation require more cost from the laboratory... But the cost of all dental ceramic veneers should not be an obstacle to its installation because they are acceptable in terms of beauty and quality. > > What does caring for dental veneers and increasing its lifespan include? ### What are the types of all-ceramic coatings?.. #### Pressable porcelain crown reinforced with Lucite One of the most well-known types of these veneers is IPS Empress... Due to the similarity of the refractive index (index of refraction) of the two components used in it (crystal and glass), lucite-reinforced veneers are very transparent and can largely match the color of the adjacent teeth. The latest generation of lithium disilicate veneers under the title (IPS e.max EMAX) was introduced in 2007... EMAX is currently one of the most common lithium disilicate veneers and is the most widely used lithium disilicate veneer in our country... Lithium disilicate veneers are very beautiful, although they are not as strong as lucite, base, but they are not as strong as zirconia... but overall The aesthetic opinion is so acceptable and the strength that they can be used both in the places where beauty is desired, i.e. in the front teeth, and in the places where strength is required, i.e. in the posterior teeth. The veneers are 400 to 500 MPa. Although this value is three times the bending strength of lucite-reinforced veneers, it is significantly less than zirconia veneers, which is why one person is more than missing the zirconia veneer.. Of the three units, it is better not to use these higher strength veneers and veneers such as zirconia veneers or metal-ceramic veneers (PFM)... It is also used when a person has grinding teeth or grinding teeth, because of the many forces that are applied to the teeth, it is better to choose higher strength veneers for treatment so that they last longer... #### Zirconia veneers Zirconia crowns are all-ceramic crowns that have become very popular in recent years... This is because zirconia is the strongest of all ceramics, so that the strength of zirconia crowns is comparable to metal-ceramic (PFM) crowns. At the same time, they create a more natural appearance than metal-ceramic crowns. #### Integrated zirconia cover (**integrated zirconia**) One of the advantages of this type of zirconia veneers is that it has a very high bending strength of 1200 MPa. As a result, they can be safely used in posterior teeth. Of course, monolithic zirconia veneers are opaque, and this is another reason why they are generally used for posterior teeth that are less visible: - **Since integrated zirconia veneers show high bending strength and resistance to breakage, they can be used as bridges when a person has lost a number of teeth.** - **These veneers can be used in people who grind their teeth or who grind their teeth.... Their integrated and strong structure resists the many forces that are applied to the teeth due to grinding of teeth.** - **When there is a small distance between the jaws, these veneers can be used....because they show acceptable strength in low thicknesses, and there is no need to shave a large amount of tooth tissue to provide space for the veneer.** - **Sometimes the structure of the underlying tooth has a strong color change, such as when the tooth has a blind post or an implant abutment... Integrated zirconia veneers are completely able to cover the underlying dark color.** #### Zirconia cover with high transparency (high transparent zirconia) The bending strength of these coatings and their resistance to breaking is from 500 to 700 MPa.... Due to their transparency, these veneers can match well with the natural color of the teeth and maintain the appearance of the teeth. Since these veneers are both strong and beautiful, they can be used both in the front part (front) and in the front part (front) and in the front part (front) of the tooth?.. In order to choose the best ceramic system for each person, two determining factors must be placed on both sides of the scale... Then, based on the needs of each person, the type of ceramic coating is selected.. One of these factors is the physical characteristics of that type of ceramic system, which includes Cases of Such as: strength, resistance to breakage, resistance to wear and long-term durability... The heavier, the strength will be ceramic, and in the front teeth, the beauty and naturalness of the coating is important... > Post-operative care.. > > What tips and things are included in the care after dental veneers? ### Is it possible to repair small cracks in the tooth without changing the veneer?... Small cracks or chipping can be repaired by placing a composite in that area... The connection of ceramic and composite is done by special bands that have the ability to connect these two different materials to each other... Although the strength of this bond is not high, it postpones the need to replace the veneer... ### Why should you use an all-ceramic tooth veneer?. All-ceramic veneers are used according to the severity of tooth decay and fracture or various dental problems... These veneers are especially used in front teeth where beauty is of great importance... Conditions that require the use of all-ceramic veneers: - ** Decay and fracture of the front teeth that occur frequently ** - **metal-based ceramic veneers that are not compatible with the gums** - ** Abnormal shape of teeth and uneven surfaces of teeth and gums ** - **Anterior tooth fracture in denervation treatment** - **Accidental loss of front teeth** - **Orthodontics with ceramic tooth coating** - **Abrasion and discoloration of teeth** In addition, all-ceramic veneers are used to strengthen tooth tissue after root canal treatment, improve the smile design in cosmetic dentistry, repair tooth wear due to teeth grinding and malnutrition. The use of all-ceramic veneers solves most aesthetic concerns.. > > What are the types of dental implant coverage? ### Who are all-ceramic veneers suitable for?.. All-ceramic veneers are a good option for people who want to restore the natural appearance and function of their front teeth... The unique beauty of these veneers makes them shine and have the effect of natural teeth and are indistinguishable from natural teeth... Recommended... > > One of the disadvantages of dental crowns is the falling of dental crowns. ### What are the steps of dental veneers?.. The number of sessions required for the preparation and delivery of dental veneers depends on the type of veneers.. which is common in all types and includes tooth preparation.. Of course, the tooth may need other treatments such as root treatment and tooth restoration.. Tooth preparation is done after the initial treatments and includes grinding the chewing surface and all around the tooth. In porcelain veneers, this is a metal frame and in all-ceramic veneers, it is one of the types of ceramics.. In this step, the ceramic layer is added on the frame and the veneer is made, and it is completely checked according to the contact dimensions and according to the color dimensions. In the last step, the veneer is placed in the furnace for the final glaze, and finally, the veneer with cement (glue) is temporarily or permanently attached to the tooth. Of course, in the case of some all-ceramic veneers that have a unified structure, as well as in the metal veneers of the second stage, which is the lifetime of the check sheet, how much is removed? > What is the lifespan of dental veneers? ###