Turning for help to the dentist, not many patients are interested in what kind of seal doctor decided to put in the tooth, and in vain.Composition, properties and durability of each material are different, as well as their aesthetic characteristics.For the restoration of the front teeth are recommended some materials, and for seals under the crown of the tooth - the other.The children - the third, and so on. D. The cost of seals of different materials is also different. Content
All filling materials are used to fill a previously prepared cavity are sticky plastic consistency and should harden over time.Typically, they are subject to the following requirements:
course, the doctor working with these materials, are important and other properties of plasticity when administered, the solidification time, the ability to adhere to t
These materials are divided into several groups: zinc phosphate, silicate, silico-phosphate, polycarboxylate and glass ionomer cements.Almost all the cement harden under the influence of chemical reactions taking place during the mixing of the components - powder and liquid.A disadvantage of this process is that after mixing the material staging time for the seal is not much more for the formation of a new surface topography of the tooth.Maximum strength is reached only after a few hours, so the setting of such seals is not recommended to eat food for 2 hours.
most modern cement group, is widely used in modern dentistry.The powder is a fine aluminum fluoro-silicate glass and the liquid - a solution of polyacrylic acid.Unlike the previous materials grip seal with the walls of the tooth is not only mechanically but also chemically, which increases the time that the seal will stay in the tooth.In these cements low toxicity, good hardness and strength, so they are often used for filling of milk teeth.Developed cements hardened by mixing the individual constituents (chemical), or by exposure to light of a certain wavelength (light).Using the latest minimizes their hardening in the mouth, which is useful in the treatment of children.
Amalgam - solidifying a solution of one or more metals in mercury.Sometimes amalgam of silver, copper and gold.Seals of this material is very strong, solid, resistant to degradation and saliva.But the most important of their shortcomings are not aesthetically pleasing, slow solidification shrinkage in volume over time.Often, after a few years of such a seal is formed around the secondary caries, and the tooth is partially painted metal alloy, which makes these materials are not very popular among patients.In addition to setting amalgam need special equipment, which is now rarely equipped dental offices.One of the complications of using amalgam fillings - the development of galvanism, which is manifested as a feeling of burning, bitter, metallic taste in the mouth.Treatment reduces to the replacement of seals.
At different stages of therapeutic treatment or orthopedic doctor uses a temporary filling.Patients mistakenly believe that it has the same properties as the material for the permanent seals.Indeed, such materials are made less strong in order that they can be then easily removed from the tooth cavity.Temporary seals are tight enough to isolate drugs (arsenic, medical paste, antiseptic on cotton turundas) and can last for several weeks.Such materials harden for a few hours after setting, so doctors do not recommend eating this time, and subsequently ignore chipped seals that are sure to happen.Modern materials for temporary fillings can harden when exposed to light for 20-30 seconds, they have a more natural color and removal of tooth derived entirely.The structure of temporary fillings can be added by the manufacturer drugs, so all this time spent filling in the oral cavity can be maintained specific taste.Temporary fillings are absolutely harmless.
contemporary artist materials used for the production of fillings in permanent teeth, restoration of crowns.Composites - a combination of two chemically different materials: organic monomer and an inorganic filler.Such materials solidify by the action of the polymerization initiator - ultraviolet light of 400-500 nm wavelength or a chemical activator.The main problem of composites - shrinkage over time, which manifests itself as defects of seals around in a few years.To reduce the risk of mikroprostranstv and to strengthen the connection between filling and the walls of the tooth using a kind of "glue" - adhesive system.Composites are very aesthetic and have a broad color palette allows you to choose the color of tooth fillings.But this group is quite toxic materials and is not used in baby teeth and permanent teeth at the stage of root growth.Before setting composite fillings enamel (if necessary) etched with 30-40% phosphoric acid, adhesive is applied to the dried surface and put the seal.Chemicals hardening by mixing components that are not inferior in strength light fillings, so they practically put under artificial crowns.Short time of curing does not allow a doctor to perform complex restoration of the tooth, which is not necessary in the preparation of dental prosthetics.And the price of such seals are usually lower than in the light.Earlier
is widely used in dentistry these materials.Synthetic doctor and kneaded in a plastic form was entered into the tooth cavity in one portion and then solidified.Disadvantages of plastic seals: toxicity, poor resistance to mechanical loads, abrasion and discoloration over time.Currently rarely used.When drilling out a tooth fillings from the patient feels a clear plastic smell in your mouth.In addition, for this type of material often meets all allergic reactions in patients.
choice of material for filling teeth depends on the requirements it is not only doctors, but also the patient.Someone important is the cost of the work, someone its appearance and durability.During the restoration of the front teeth is better not to save and put the quality seal of the modern light composites.And the treatment of lateral posterior teeth should be fine and chemical composites.Cement erased over time, dissolve in saliva, crumble, and in permanent teeth fillings are idle on average no more than 2-3 years.In preparing the tooth for an artificial crown is quite possible to manage the chemical composite fillings.In any case, by reference to the dentist is asked what the doctor available have materials in what their difference what their deficiencies and weaknesses in order to avoid unpleasant consequences, such as dyeing seals over time, cracks and chips, unpleasantodor or taste in the mouth.