In the field of modern prosthetics, the crowns of cermets occupy, probably, the largest niche due to their high strength, aesthetics and quite acceptable cost.
Metal ceramic crowns are a combination of several materials in one design, namely:
Due to the structural features, the cermets are distinguished according to the type of alloy chosen. Also, there is a classification a
Preparation and installation of the crown is preceded by a preliminary stage consisting of the following procedures:
Immediately after the end of the complex preparation begins prosthetics, the first stage of which is the production of crowns of cermets. So, how to insert crowns:
After receiving a ready prosthesis by a doctor, the patient needs to come to the fitting. If there are minor defects, the crown is corrected directly in the dental office.
If major errors are detected, the prosthesis is sent to the laboratory for revision.
In case of absence of claims to the quality of manufacture, a temporary installation of cermets begins. The doctor necessarily stipulates the duration of the adaptation period, during which the body must get used to the prosthesis.
It usually does not exceed a few weeks. In the absence of a rejection reaction, the temporary cement is removed, and a permanent fixer is applied instead, which ensures the strength, stability and durability of the crown.
Ceramic ceramic crowns are recommended for installation with:
You can find out more about the features of metal-ceramic crowns by viewing this video:
Do not perform prosthetics with cermet in the case of:
The success of the prosthesis depends on the quality of the restoration of the anatomical shape of the damaged tooth, which determines the correctness of the process of chewing food, proper correction of aesthetics and preservation of oral health in general.
If at some stage of the work there is an error, the use of a metal-ceramic crown can lead to the development of some complications.
May occur as a decrease in the volume of the gingival tissue, and their thickening, swelling as a result of the inflammatory process.
Simultaneously with the gingival margin, the papilla can be involved in the process in the area of the installed prosthesis.
Such changes are caused, as a rule, by poor-quality fit of the edge of the crown to the gum, its permanent trauma.
It is an aggravation of the complication described above and is manifested in the edema of soft tissues surrounding the crown, their bleeding. It is important to respond in a timely manner to such symptoms, not allowing the destruction of the prosthetic tissues of the tooth.
The reason for the negative changes, as in the first case, is poor-quality prosthetics with impregnated preparation or forming of the tooth model by not an educated non-informative impression.
Unfortunately, it is possible to solve the problem in this situation only by manufacturing a new prosthesis.
The advantages of the cermets are:
. Among the negative points are:
How to grind teeth for cermet:
When choosing metal-ceramic crowns, you can count on easy maintenance. To ensure that the prosthesis lasts as long as possible, the usual daily morning and evening brushing of the teeth is complemented by the use of a special irrigator for the oral cavity before going to bed, the dental floss after each meal.
In order to prevent inflammation, it is necessary to remove dental calculus and subgingival plaque every six months in the dental office, and also to fix the points of overestimation on the chewing surface of the crowns in order to prevent their chipping.
Simultaneously with complex local events, it is important to monitor the overall health, proper nutrition, the presence in the diet of a sufficient number of vitamins that will properly feed the crowned tooth.
The price of a metal-ceramic crown depends on a number of factors:
Usually in dental clinics where you decide to insert teeth, give a 12-month warranty. In general, the service life of metal-ceramic prostheses is from 8 to 10 years, provided the quality of manufacturing and proper installation.
After this period, resorption of the fixing cement occurs and a breach of the tightness of the supporting tooth with an increased risk of developing secondary caries in it. Therefore, a new dental prosthetics is required.
Which teeth are better - cermet, metal plastic, ceramics, zirconium or stamped crown?
According to dental technicians and dentists, ceramic-coated zirconium crowns are much more aesthetically pleasing in appearance than ceramic-metal prostheses, and are equally durable. True, pay for zirconium crowns will have more, but with prosthetics of the front teeth, this option is still preferable.
. Metal plastic in comparison with the cermet is characterized by impermanence of color, fragility, inferior aesthetics, propensity to swell due to porous structure and transparency( therefore, these crowns are not installed on the front teeth).
Ceramic crowns are more fragile in comparison with cermets, but they do not adversely affect adjacent teeth, while cermet prostheses contribute to their erosion.
Also, ceramics are distinguished by hypoallergenicity, longer service life, higher aesthetics. The cost of such crowns is almost 2 times higher.
The most accessible in the price ratio are stamped crowns, but the appearance of such dentures leaves much to be desired.
Silvery or golden artificial teeth stand out sharply against the background of healthy teeth, so the aesthetics and beauty of the smile remain unattainable criteria.
The effective use of metal-ceramic prostheses and their reliability is confirmed by the following patient feedback.
Ceramic ceramic crowns installed not only on the side, but also on the front teeth. The result did not bring disappointments, as the prostheses do not cause problems, they are easily cleaned of plaque, retain their color and do not wear off. Therefore, I am grateful to the dentist who skillfully performed the prosthetics and provided me with an ideal smile.
In the first weeks after the installation of the cermet prosthesis, there was a slight inflammation of the gum, which I managed to cope with by rinsing. After that, there were no problems.
Thus, crowns made of cermets are a kind of "golden mean" in terms of cost, quality and duration of operation between ceramic and plastic or metal prostheses.
Aesthetic appearance does not cause the people around you to doubt that your smile is formed by your own teeth, and proper care will allow to keep the crown in its original form for as long as possible.
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