Which seals better to put on the teeth?
During treatment, the dentist asks a question about what to fill the cavity, so the patient must know which seal is better to put on the teeth, as well as the main advantages and disadvantages of various materials to understand what he pays money.
On modern dental market presents a large number of different means to carry out restorations. Some fillings are more suitable for front teeth, others for the indigenous, some have high aesthetic qualities, another characteristic of enhanced strength properties. Consider the basic types of sealing materials used for the manufacture of seals.
Main types of seals
There are two main types of dental restorations:
- permanent – the most extensive group of materials that are used for replacement of the tooth enamel and dentin. Such seals provide a hermetic, reliable closing of the prepared cavity, and depending on the type of used materials may have a caries-static, protect from relapse or have high aesthetic qualities, making the restoration on the tooth will be invisible even on close examination;
- the time – overlap in cases where delayed treatment requires several visits for the treatment of pulpitis or periodontitis. The seal of the temporary material protects against the penetration of microorganisms and food particles in the root canal. Due to the fact that the substances used for that purpose, have the ability to crumble or dissolve over time, they are set for a period of not more than 10-14 days.
The means used to restore tooth anatomy, its functions, appearance, and prevent further destruction of the hard tissues, have the clear classification which is based on differences in the composition and the properties of restorative materials.
- Cements – subdivided into mineral and polymer. The first group includes means based on phosphoric acid: silicate, silicone phosphate and zinc phosphate. The polymers are produced with a content of polyacrylic or other acids of organic origin. This includes polycarboxylate and glass ionomer cements.
- Plastic – are filled with (composite) and unfilled, produced on the basis of epoxy or acrylic resins.
- Composites are divided into materials of chemical and light-cured.
- Compomers, hybrid composites and SIC.
- Metallic materials for restorations – amalgam, alloys of gallium and pure gold for direct filling.
Let us consider in more detail each of the groups.
Most common dental materials used for budget acceptance. Cements have the following advantages:
- high wear resistance;
- prevention of recurrent caries due to the accumulation of fluoride from toothpastes and gradual release;
- affordable price;
- easy to use;
- have a coefficient of thermal expansion close to that of the index of dental tissues;
- good adhesion to dentin and enamel.
However, this group of materials has a number of drawbacks, which the seals of them are not recommended to be put in certain situations:
- sensitive to insufficient amount of fluid or excess at the initial stage of solidification;
- low aesthetic properties;
- difficulty in grinding and polishing of fillings, not allowing to achieve a smooth mirror-like surface of the restored part of the tooth.
On the basis of the qualities of cements, it is advisable to apply for restoration of molars that require the material’s resistance to masticatory loads, but not critical aesthetic parameters.
These seals are also used at therapeutic free admission to the dental clinics, however, are less widespread in comparison with the cements because of the specificity of work with them. In addition, such materials have other negative sides.
- Low resistance to mechanical pressure.
- The tendency to abrasion.
- Toxicity and odor during solidification.
- The fragility of the restorations.
- High coefficient of shrinkage of the plastic during polymerization.
- The absorption of dyes from food and beverages.
One of the obvious advantages of the material, we can only highlight the similarity of the external signs of hard tissue of the tooth, causing the plastic seals it is recommended to put on the front teeth where there is a strong masticatory load, and requires a satisfactory appearance.
Chemically cured resins are self-hardening two-component system, which is based on a polymer matrix. Are a more modern design compared to conventional cement materials.
Due to the fact that the matrix of the composite chemical curing comprises an organic polymer resin and put in it an inorganic filler, means for stopping this group have unique properties in comparison with all previous representatives.
- uniform polymerization of the material regardless of the thickness of the deposited layer in the cavity;
- satisfactory aesthetic data;
- good abrasion resistance;
- convenience for finishing
- affordable price.
- short working time of the material after mixing of the components;
- excessive turnover of some representatives of the chemical composites curing;
- the gray undertone in the finished seal by reason of the allocation of residual monomer;
- high shrinkage.
Despite the many positive aspects of the material, increasing numbers of dentists refusing chemical composites in favor of photocurable fillings.
Spetsodezhda composites rightfully occupy a leading position among the variety of dental restorative materials, because their positive sides are:
- no change physical abilities in the modeling process seal;
- no need to mix substances – composite material presents a homogeneous mass;
- the possibility to combine different shades to get the maximum resemblance to the natural color of the tooth;
- polymerization with the help of the special lamp at the moment when it is necessary to the doctor;
- non-waste use – the dentist takes enough material as it is needed.
But like any other products for the restoration of the tooth, light composites have a number of negative qualities:
- for a long time of the seal because of the need for layer-by-layer depositing of a substance, of a thickness more than 2 mm, otherwise there will be a full curing;
- high cost;
- light using lamps is harmful to the retina, for this reason, you need to work in protective glasses.
Materials are used for all types of dental restorations, as they have good durability, well polished, presented a wide palette of shades, as well as with a composite you can create natural anatomy of the tooth; cusps and fissures, which greatly improves the aesthetics of the seals.
Metal fillings were widespread during the Soviet era, and in the countries of Western Europe are widely used on budget reception to this day. This is not surprising, because thanks to present of silver material has a caries-static effect, it kills microorganisms and is the most durable of all the varieties of means for the sealing of teeth.
However, amalgams are of limited use for several reasons.
- Contained in the composition of mercury is toxic to the body.
- Dark gray color looks unattractive.
- No adhesion to the walls of carious cavity.
- Stain the dentin.
These fillings should only be used for restoring extensive defects in posterior teeth.
Dental porcelain treat persichetti designs used to make up the lost integrity of the tooth structure. The most popular ceramic inlays, which in terms of resistance to mechanical stress are not inferior to enamel. In addition, ceramic has a high aesthetic appeal.
All designs from this material have the following disadvantages:
- lack of adhesion to the tooth;
- it is necessary to use cements for fixing;
Compomers are a hybrid material that the intention of the producers should have positive qualities of composites and light-cured glass ionomer cements. Because of this, they have a high degree of similarity in external features with solid fabrics, very durable, resistant to chewing pressure. However, as the clinical experience of doctors, dentists, compomers:
- less aesthetic, durable and polished worse in comparison with the composite material;
- have less biocompatibility, the worst caries-static effect and poor adhesion.
For these reasons, the materials presented groups have a limited scope.
Video: about dental fillings and the types of filling material.
► Which seals better to put on the chewing teeth?
In molars it is necessary to install these materials, which can withstand high mechanical loads and thus are not erased. These properties are composites and size. Of the modern developments meet the requirements of ormocer – hybrids photocomposite and ceramics.
► Paid or free: which to choose?
A simple answer to this question is impossible, because such a choice should the patient independently based on their financial situation. If a person has the ability to pay for dental services, it is better to select pay seal as they are modern materials, allowing to achieve maximum similarity with the color of the teeth and seal the tooth so that between the restoration and dentine there is no gap, which will later penetrate the microorganisms and cause retidiviruuschem tooth decay.
► Fillings for milk teeth
The most popular materials for the restoration of lost dental tissues in children are cements. Drugs allow you to quickly make the seal, adhere well to the tooth and release fluoride, which is a good way to prevent secondary caries. Among children popular material «Twinkie star» belonging to the class of compomers, as it comes in many colors, and kids can to your taste to choose a pink, gold or green seal.