Tooth crowns for crown: what are, the features of the metal stump to the tooth

The human dental tissue is exposed to a large volume of loads all life, therefore it often collapses.Modern dental clinics have a wide range of possibilities and are ready to help in the restoration of damaged teeth.

Functional and visual properties of the teeth can be renewed as soon as possible.For qualitative restoration works, dentists use special inserts for the dental crown.Often caries affects the walls of the teeth, expanding and deepening with each passing day.

Similar carious formations create difficulties in the sealing procedure, and there is no guarantee that the tooth will function properly in the future.In such situations, specialists practice the use of dental tabs.Today, cultural tabs are considered the most popular among patients.

Types of dental tabs

Types of tabs for the crown:

• Kultevaya.Made from a wide variety of metal alloys with precision casting.The method of milling is used to manufacture inserts for a crown made of zirconium oxide and aluminum oxide.
• Ceramic.Required for significant destruction of dental structures.It is important that the destroyed tooth retained two walls.
• Reinforced composite.Has similar elasticity parameters, as well as ceramic, however, the second is more durable.Composite tabs tend to wear off under increased load.In contrast to the ceramic tab, it is less likely to accumulate plaque.All because the high temperature and pressure in the dental laboratory create conditions for a complete polymerization of the material, which is unrealistic to achieve in the human mouth.
• Gold.Gradually, this proven method is a thing of the past, but with excellent results, it is sometimes used to restore dental tissue.Despite the aesthetic disadvantages, it has a long service life due to its corrosion resistance.This tab can last more than 20 years.

What is a cult tab?

The culture insert is made after the dental impression.The resulting design is intended for further fixation of the crown to it.With the help of the cultic tab, the severely damaged teeth are restored.

The one-piece design of the dental insert includes two parts.The upper part looks like a stump, which is pre-sharpened to establish the crown.It is for this reason that it is called the cult.The lower part resembles a rod.The function of the bottom or root part is to simulate the pin.

The crown part of is made on individual casts of , with the help of their dental technics it forms the necessary geometry of the crown.It can be done so that the crown part will have similarity to the original shape of the tooth.Variants are considered when it is used independently, separately from the crown.The lower part is made, starting from the peculiarities of the structure of the tooth, so it can even be double or triple.In such a situation, it is advisable to use a collapsible construction, and not an integral one.

The removable parts have only pins, this is required to reduce the complexity of the installation, especially if the tooth has a complex multi-channel shape and a non-standard channel arrangement.The main cult inserts in the tooth are shown to those who do not have the opportunity to install a seal or pin because of a deficiency of dental tissue.When installing the stump, a uniform load on the tooth is achieved, which can not be achieved with a pin.

The pin, in contrast to the stump tab, is installed in one operation, but its use does not guarantee that the chewing organ will be intact and the tooth enamel will not break down.

The tab is attached to a special cement , which includes components that ensure a secure fit of the structure to the tooth.Cement composition provides complete tightness and does not allow the formation of cracks.The use of the cultic tabs is justified when only the root is left or there is no internal filling, and the tooth has thin walls prone to destruction.

Such designs are not subject to shrinkage over time.This allows you to qualitatively install the crown and prevent it from loosening and breaking.Among other things, the cult inserts allow to fully extract tissues affected by caries, which excludes its secondary formation and the appearance of pain symptoms under the crown.

Kinds of cultic tabs

Cult tabs depending on the type of manufacture are:

1. Foldable.It is used in cases where teeth with several roots are damaged.This ability is provided by the ability to insert and remove pins.Folding construction is difficult to select and install, nevertheless, it is very reliable.
2. Molded.Consists of two parts.One is designed for fixing in the dental jaw, and the other is needed to restore the shape of the crown.Manufactured in dental workshops under the condition of high temperatures and pressure.

The material for the inserts has many requirements for , such as:

• Stability of bioinertness.The materials used should not damage the surrounding tissues and the human body as a whole.
• High mechanical strength.
• Minimum shrinkage in the process of obtaining the finished product
• Low thermal conductivity values ​​
• Availability and reasonable price

The following products are distinguished by the type of material:

• Metal.The most common alloys based on cobalt and chromium, there are also alloys of precious metals.Metal samples are reliable, can withstand multiple loads, so they are well suited for the reconstruction of chewing teeth.For aesthetic reasons, they are rarely used in prosthetics of the front teeth and incisors.
• Metal ceramic.A combination of metal and ceramic elements.Such a product looks outwardly more attractive, but does not have high reliability.Sometimes they fall out due to poor compatibility of the components, metal and ceramics can react due to thermal effects, which will lead to a breakdown in the integrity of the structure.
• Ceramic.Homogeneous in its composition products.With their help, restore the front teeth.Pressed ceramics gives teeth a refined appearance, and high-tech manufacturing reduces the risk of developing dental diseases in the installation area.
• Of zirconium oxide.Heavy-duty construction, distinguished by high aesthetic parameters.Applied with prosthetics of both front and chewing teeth.

Advantages and disadvantages of the

cultic designs The cultivars have the many advantages of over previous restoration methods.Their main advantages:

• dental crown can be carefully adjusted to the
• tab resistance to mechanical and chemical effects
• denticulate system undergoes significantly less workload
• possibility of mounting on teeth with several roots
• excellent reliability of the product due to accuracySelection of the form and material
• being a support for dentures, creates the opportunity to install prosthetic bridges
• a high probability of restorationEven the most damaged teeth
• Specificity of the structure of the construction creates an obstacle to the penetration of pathogens into the cavity of the restored tooth
• If there is damage to the crown, then there is no need to change the tab, since under it a new crown is created
• adjacent teeth are not affected

The disadvantages of the inserts are usually related to the complexity of the manufacturing mechanism:

• The installation takes a long time, there is no way to implement itRestoration of the tooth in one visit.The previous procedures for measuring the cavity of the damaged tooth and the process of manufacturing the material by a technician take considerable time.
• The cost of materials and work is not available to all
• The correct installation requires a dentist of high qualification and the corresponding experience of prosthetics
• Before the installation, a large quantity of tooth enamel

indications and contraindications for installing Stump structure

Core Build-ups tabs shown in the following cases:

• ruined coronal tooth portion
• Present defects tooth shape
• Improper positioning tooth
• supragingival defects region of the damaged tooth various etiologies
• Unable to restore the tooth crown with the help of sealing and other ways
• If you need support for the establishment of a bridge
• Kasplinting design if there is periodontal disease

contraindicated:

• There disease gums in place
• tabs installation is damaged tooth root
• pathologic tooth mobility
• infected root canals
• Allergic reactions to alloys used for manufacturing structures

Features installation copings for dental crowns

for all, without exception, patients select the most approachSuitable types and forms stump tabs, and then proceed to phase installation process.From the doctor exact observance of technology is required, that work was as much as possible effective, and the product served as long as possible.Preparatory stage.

• .The dentist-therapist carries out manipulations aimed at eliminating the foci of caries, treating the formed cavities with antiseptics.
• Removing the molds.Once the doctor has completed the preparatory work, he is engaged in removing the impression from the restored tooth, as well as from the adjacent teeth.The procedure is necessary for the exact location of the future cult structure.
• Temporary filling.Such a measure is needed to protect the formed cavity from negative factors.A temporary filling of simple materials is used, while the dental technician makes a tab.
• Computer modeling of a dental product.The three-dimensional model acts as an instruction to a specialist who processes the workpiece on a special milling machine.
• Some materials require firing in a special furnace
• Installation.The fixation of the finished structure is made, and it is necessary to ensure accurate placement of the cast root product in the prepared cavity.Before hardening of the cement mixture, the specialist strongly presses the tab.Then, the crown is attached to the insert, specially made for the geometry of the cult insert.The result is a dental tab with a metal base and ceramic lining.
• To eliminate the difference between artificial materials and natural fabrics, finish polishing is sometimes required.

Stump Once the tab has been installed , requires meticulous oral hygiene.It is necessary to brush your teeth at least twice a day.After meals, use antibacterial rinses and anti-inflammatory solutions.Clean the surface of the dental tab is best with a brush with soft bristles.Do not forget about preventive examinations and attend a dental clinic twice a year.

Given that copings sufficiently strong and superior in reliability even modern seals, their lifespan is limited.Made from the simplest materials, will serve the patient for at least five years.It is possible to increase the service life if the orthopedist and dental technician conscientiously perform their work, then the design will be preserved for 7-10 years.