Veneer is a dental material that is applied to the teeth to repair partial or total teeth complications and the intrinsic color change of the tooth. Veneers are generally made of composite shaped by dentist, composites made in the laboratory, porcelain composite, or pressed ceramic materials. Common usages of veneers are, dental surfaces that are bad shaped, have lost their natural color, have been eroded or have been repaired badly.
Complete veneer is used to repair general defects or areas of the teeth that have been stained, especially the tooth surface. Of course, various factors such as patient's age, obstruction, tissue health, posture and alignment of the teeth and oral health should be evaluated before coating. After performing the complete coating, cares should be taken properly to ensure that the physiological range, especially in the gum areas, is provided.
There is some controversy about tooth preparation before veneer and coverage rate of dental veneers. Some prefer to apply veneer all over the surface without having a special preparation.
The advantage of this method is that:
1- If the coating does not succeed or the patient does not like the coating, it can be removed. Though there will be some problems.
2- To remove the surface of the enamel, which has high levels of fluoride, it does not have the ability to etch by acid.
3- To make the hard surface for bonding.
4- To provide a definite endpoint.
Preparation and restoration of the tooth with veneer should be in such a way that supports the best function, with beauty and firmness, with a physiological distance and a long life span. All of these should be with the consideration of the power of residue tooth structure. If the lining is chipped or its color is changed, it can be easily repaired or replaced.
Usually only six anterior jaw teeth need to be corrected because they are the most prominent teeth when a person smiles or speaks though small jaw teeth are also in this category if they appear in smile. The anterior mandibular teeth that have been discolored are rarely suitable for veneer because they are thin and brittle and friction power is directly on them. As a result, veneer is not recommended for the lower jaw's teeth if they are in their normal state, because the proper reduction of the enamel in this part will be very difficult for the thickness of the coating.
Direct veneer techniques:
Direct and trivial coating: A minor and inherent change in the tooth with a healthy enamel can be treated in this way. Most doctors often use general veneers, even if the trivial veneer is needed.
Minor tooth scratching (tooth erosion) veneers are highly recommended because of the following issues.
Creating space for a veneer that can cover the tooth color.
Usually there is no need for anesthetizing for veneer unless the damage to the tooth is deep and reaching the teeth dentin.
Performing composite veneer by reconstructive and beauty specialist
With the latest method of the day by microscope
Without numbness and in most cases without cutting
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Performing laminate by dental prosthesis specialist
Non-surgical and with the lowest scratching
Use the best laminate brands
Tooth laminate or veneer is a layer of tooth-colored material or Hollywood white material that is applied on the teeth to correct the shape, form, color and length of the teeth, or to close the gap between them and to treat broken teeth. Due to the seldom scratching and superb beauty, veneers are the first treatment plan for the anterior teeth. In fact, this is a tooth colored coat that corrects the shape and color of the teeth, and if the teeth are spaced apart, laminate will close the gap and also is applied on the teeth that are fracturing.
Laminates in the past was the conventional and durable treatment for anterior teeth that did not look beautiful, using full crowns coating by removing parts of the tooth structure. This invasive procedure may have adverse effects on pulp tissues (dental nerve) and gingival tissue.
By introducing Bonding method by Beono Core in 1955, researches goes into the use of conservative techniques combined with the use of trowel materials to tooth surfaces which was developed to treat tooth beauty problems. The use of composite resin masks the tooth and improves the color of the tooth, its position and angles. Of course, these composites have a disadvantage, which is that their placement is susceptible and they may also fracture from the marginal areas. Due to these problems, resin composites are suggested for low or intermediate level restorations and milder tooth problems.
Porcelain laminates are nowadays a popular treatment for the beauty and solving teeth problems that are needed to be performed correctly to achieve long-term results.
Dental Laminate Types
Veneers are either made of composite and made directly in the office (called composite veneer) or made of ceramic and are made in the laboratory (called ceramic veneer).
Ceramic Laminate: It has a higher resistance in comparison to composite laminates and has a more stable color than composites and has a more elegant appearance.
Composite Laminate: The color stability of this type of laminate is lower, but its price is cheaper, and less scratching can be considered as its advantages.
Preparation: A mental image is required to specify the tooth preparation and its requirements, including depth reduction to the preparation of the margins to achieve the final result. The purpose of the tooth preparation is to: provide sufficient thickness for lamination at the tooth surface, in order to maintain the necessary resistance to the fracture, and make sure that no problem will be in the final repair. Enamel preparation as much as possible. The final preparation, which is free of any sharpness at the internal angles, is completely smooth and ultimately provides a specific location for the laying of the laminates
Material Selection: The lithium disilicate material (emax) has been chosen for its visual properties, its excellent strength and its freshness and resistance to fractures. This material is available in a variety of opaque and transparent forms, and its opaque type allows the existing ceramic to masks the color as needed.
Laboratory process: The production of ceramic laminates that remain lifelong for person, requires skill and should use porcelain feldspathic and highly accurate waxers in the hot press technique. But today, cad / cam techniques have made it possible to create laminates with just a few clicks. The diagnosis of wax up which is initially approved by the patient and then its designing is being implemented temporarily, is scanned in the system to be used as the blueprint for the final laminate. At this stage of the laminate manufacturing process, expert job is to reproduce exactly the design that the patient and the doctor approved. Any failure to adapt to the design creates multiple problems, including disapproval, problems with appearance, speech and its function. Of course, small features are related to the level of correction, and small changes in design can be done to enhance the artistic and beauty aspect of the work output.
Who is appropriate to perform this teeth beauty operation?
You should know that Laminate can fix the problems of the anterior teeth, and if the tooth does not have many losses, the only treatment will be in the enamel area. One of the important conditions for it is the oral habits of the patient. Because some habits like bruxism can cause dental fractures for the laminate over time.
Usually, in our society, composite, composite veneer and dental lamination are known as ceramic laminates. Ceramic laminate and composite veneer are used both to relieve bad color and shape of teeth and smile design, and can be used in desired colors from isochromatic to bright and very white. Usually for teeth that are seen in the smile that is about eight to ten teeth in the upper and lower jaw is recommended.
The usage of ceramic laminate is to correct teeth irregularities, tooth size, to correct the bad color of the tooth, to close the teeth gap, repair the fractures, to fix the damaged teeth and so on. One of the most important features of ceramic lamination is its high strength. Ceramic laminates are used in cases where the teeth are severely stressed or the appearance problems including fractures, discoloration and excessive filling.
To make ceramic laminate, the outer surface and tip of the teeth will be scratched very little and then the teeth are molded and sent to special labs. It takes about seven to 14 days to prepare (make and deliver) laminates. The laminate is prepared according to the physician's order and the patient's choice, and after preparing, the laminates will be pasted on the teeth with cement in office by the doctor in the nest session.
Composite laminate or composite veneer is a method for correcting tooth bad color and deformity in which a layer of white tooth-colored composite, also used to repair teeth decay, is applied to the teeth to enhance the beauty. This method usually does not require molding and more time to prepare, and is formed during a session by a dentist (about five hours per jaw) and does not require teeth scratching and molding. Composites do not change color when they are made of a good quality material and are well-polished (at the time of construction), or has little color variation over the years.
Composite Veneer is made with high skill and care and by a beauty specialist dentist.
The use of composite veneer is more conservative, treatment is possible with a minimal amount of scratching, and is mostly used in cases where the client is not willing to pay more. Because the cost of teeth laminate (ceramic laminate) is higher than the cost of composite veneer.
Composite veneer and ceramic laminate difference
With the above description, the difference between composites and ceramic laminates may have been revealed to you, but for more information, these are differences between composite and laminate:
construction processes: The laminate needs to be molded and made in the laboratory in about 10 days. But the composite veneer is made in one session at the office and by the beauty specialist dentist.
Cost of teeth laminate: Composite veneer's price is more appropriate than ceramic laminates.
Fracture strength: The strength of tooth laminate (ceramic laminate) is much higher than the composite veneer.
Color change rate: The color change of composite is more than ceramic laminate.
Possibility to change or repair: Another difference between composite veneer and laminates is that it is possible to change in the composite veneer form, but ceramic laminates cannot be changed after their construction. Also, if they break, the composite veneer can be repaired, but the ceramic laminate should be replaced with a new one (but only the same tooth).