Getting to know the applications of flooring or base and liner
The two main materials that are used for lining the cavities of the teeth are base and liner, which have differences. When these two materials are implemented and placed on the floor of the tooth, the dentist places restorative materials such as composite and amalgam on the floor material to restore the tooth.. In this article from Dr. Hossein Borjian's website The best implant in Isfahan We will examine the applications of flooring or base and liner.
There are differences between base and liner in terms of structure and application, and if we know their definition and characteristics, we can more easily distinguish these two flooring materials..
Liner application
Liners, which consist mostly of calcium hydroxide and are also known as decals, are a thin layer of material that is placed on the prepared lower surface of the tooth.. This thin layer protects the teeth against restorative materials, cold, heat, liquids inside the mouth and external things.
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Liners are usually classified based on thickness and they are placed in the following three categories:
- Soluble liners with a thickness of about 2 to 5 microns
- 20 to 25 micron thick psoas ension liners
- Cement liners (Cement Liners) With a thickness of 200 to 1000 microns
These liners are used to separate and create a protective distance, and because of their low strength, they cannot be used as tooth fillers alone..
The liner is used as the first layer on the bottom of the tooth, in such a way that it is immediately placed on the surface of the bottom of the tooth with a metal pen after mixing.. Dentists who use liners should be aware that liners harden in the first few seconds.. By insulating the tooth against cold and heat, the liner layer reduces the excitability of the dental pulp.
Application of all types of bases
After the liner, the second material called base is used. This material is thicker than the liners and is prepared in the form of powder and liquid. The dentist must be careful to combine the powder and liquid completely in several steps and then place it on the liner layer in the place of the tooth.. The uniform combination of powder and liquid becomes a paste or putty, and the thickness of the base used must be greater than the liner and at least one millimeter..
When the base is in place and fully hardened, it will be able to withstand the force from the restorative material. In fact, the base acts as a shock absorber and shock absorber and controls the forces. On the other hand, there is a view that the base protects the pulp in thermal and shock conditions.
Different types of bass
Polycarboxylate :
which, for example, can be called Polyf (PolyF) Cited. A substance that does not irritate the dental pulp and is also used in gluing veneers.
Zinc oxide eugenol (ZOE):
In addition to not being irritating to the teeth, it also relieves the pain.
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Glass ionomer (GI) :
Glass ionomer is produced in two categories: self-curing and light-curing, the difference being in how they harden. Self-curers are self-curing and light-curers are cured with blue light.
Zinc phosphate like Harvard (Harvard) :
This material has the ability to be irritated and therefore it is not used in living teeth and it is mostly used in the field of gluing veneers, posts and dental blinds..
The cost of dental flooring
Like tooth filling, which depends on the condition, type of tooth, upper or lower jaw, etc., there is a price difference for flooring, depending on the condition, the amount of tooth decay and the type of materials used, the cost and payment will be different..
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Attention :
- The scientific accuracy of the above published material should be confirmed by the patient's personal consultation with Dr. Borjian.
- This article is managed and published by the site admin.
