Porcelain teeth, known as porcelain fused to metal restorations, are restorations made under vacuum conditions with the help of high temperatures by fusing ceramic powder and combining it with specially treated metal surfaces. Its aesthetics and biocompatibility are irreplaceable by other restorations, and it is by far the more ideal restoration. Porcelain teeth advantages (refers to the design of reasonable, precision production of porcelain teeth) A, porcelain teeth to achieve permanent, bionic restoration 1, good edge of the closed Some friends may have eaten such a bitter head: a not so good or missing some teeth, through the braces after ten years or so, (a short period of time of one to two years) to feel the odor or pain, is because of the denture crowns and the real teeth are not enough between the close fit, saliva and food debris will be The real teeth will gradually corrode, resulting in odor, loosening and falling off, which is the result of poorly closed edges of dentures. The production of high-quality porcelain teeth requires edge fit, plus special non-water-soluble bonding materials, to ensure that the edge of the seal. 2, beautiful color can be adjusted to make the same color as the real teeth, permanent color, all-porcelain tooth color is more ideal, refractive basically the same as the real teeth. 3, good biocompatibility, especially the bio-precious metals made of porcelain and all-porcelain teeth, because of its electrical chemical inertia and corrosion resistance, non-allergic tissues, and ordinary stainless steel porcelain teeth, wear a period of time, the gingival margin is visible as a dark gray edge. 4, high strength materials Gold will be fused with ceramic powder at high temperatures combined together, enough to withstand the chewing force in the mouth, precious metals and ceramic teeth with a stronger bond. 5, to protect the hard tissues of the tooth and the dental pulp Because the teeth need to do porcelain teeth are often discolored caries more teeth, porcelain crowns made after the completion of the entire real tooth is surrounded by gold in the middle of the chewing force on the crown, will not fracture or collapse, and bonding porcelain crowns of the cement and porcelain layer, there is a good insulating properties, preventing external stimuli on the damage to the dental pulp. If the crown is missing too much, it is necessary to stake in the root nerve tube, and then make a porcelain crown on it Second, the composition of the porcelain crown: gold testament crown, shade porcelain, dentin porcelain, enamel porcelain. Third, what are the factors that affect the quality of porcelain teeth? 1, process: clinical often see the same German porcelain powder, do out of the porcelain teeth have a beautiful form, color vice true, wear-resistant, do not collapse porcelain, there is also the opposite situation. A good quality porcelain teeth, in addition to high-quality porcelain powder and metal, and the whole process of porcelain teeth production process is closely related to: reasonable design of the gold will be the inner crown, porcelain preheating temperature, heating rate, the final firing temperature and retention time, vacuum, must implement strict operating procedures. 2, clinical design and operation: not that shaping a beautiful appearance, even if it is a perfect restoration, porcelain teeth must be suitable for the oral physiological environment, long-term wear without adverse reactions, do not collapse porcelain. This requires clinicians to carry out scientific and reasonable design, strictly grasp the fixed denture restoration indications, to determine the number of its teeth, (generally speaking, set fixed teeth on the missing one or two teeth, and the two sides of their own teeth are healthy, is the best indication.) Edge position, endodontic treatment, occlusal balance, sterilization bonding requirements of each link is more important. Fourth, the indications for porcelain tooth fracture, defects; dental defects (missing teeth); should not be corrected malocclusion, malocclusion, crown discoloration, dead pulp teeth, tetracycline teeth, dental defects in the fixed restorations, generally in the front teeth have more choices. For back teeth with large defects, teeth after root canal treatment, if the patient does not require a high degree of aesthetics, the best and most suitable restorations are inlays and high inlays. Disadvantages of porcelain teeth: Abrasion of one’s own teeth is too much, we dentists find it more heartbreaking. In the porcelain teeth to the old periodontal atrophy, basically the root surface caries, resulting in restoration failure. Nowadays, many dentists design incorrectly, which is even more caused by the destruction of their own teeth. Fixed restorations for periodontal reasons are not an indication above the age of 50, as the textbooks make clear. Suitable for porcelain dental restoration type 1, missing teeth, generally require a small number of missing teeth, (1-2 teeth) and the neighboring teeth are healthy, there is no inflammation or inflammation, but after perfect treatment to get control, the doctor can consider doing porcelain dental restoration, and the patient agreed to grind their own dental tissue. To do porcelain teeth to grind a lot of their own teeth, the patient must consider their own, because the teeth are ground is not regenerated! 2, poor tooth color or form, such as tetracycline teeth, conical small teeth, etc.; it is best to consider porcelain veneers 3, abnormal tooth shape and should not be done, unwilling to do orthodontic treatment patients, can consider doing porcelain dental restoration; 4, due to trauma and broken teeth or residual roots, such as the roots of the teeth have enough length, periodontal condition is better, after a perfect root canal treatment, can be ceramic dental restoration; 5, dental caries or anterior teeth Large tooth loss, especially the discoloration of the front teeth in gray or yellowish brown, can be restored to the beauty and increase the strength by porcelain teeth. How should I protect my teeth after making porcelain teeth? Porcelain teeth are subjected to more than its stress range of pressure will be broken porcelain, so do not bite too hard food, such as walnuts and other things; in addition to the early stage of dental veneer compared with the restoration of the upper and lower cusp of the teeth in the different alignment, to eat slowly, so as to avoid biting the buccal and lingual mucosa; and ceramic teeth with the abutment teeth is easy to gather plaque, the formation of dental tartar, should pay attention to the cleaning of the teeth, teeth can be used to floss the self-cleaning between the teeth, and regular checkups in hospitals, dental cleaning. What should I pay attention to when wearing porcelain? When wearing porcelain, there is mild discomfort, patients should be patient to practice using, gradually adapt to, first eat soft food, adapt to then eat normal food; keep the mouth clean, develop the habit of brushing after meals; porcelain teeth with inappropriate or oppression of the mucous membrane caused by pain, should be timely follow-up repair. Nickel-chromium alloy material problem: do porcelain teeth must go to the regular hospitals, clinics to do, can not be greedy for cheap choice to do porcelain teeth, low-priced porcelain teeth can not be made of good materials in line with national regulations, often with non-compliance with the requirements of the material production. The cost of porcelain teeth in addition to the cost of materials, more importantly, also includes the cost of technology. It is like finding designers and tailors of different grades, the price is also very different. Chinese Stomatological Association of Oral Materials Professional Committee in the Chinese Stomatological Network released “porcelain restorations with nickel-chromium alloy biosafety”, the conclusion of the article, nickel-chromium alloy can give a small number of patients wearing nickel-chromium alloy porcelain crowns bring side effects, but most of them are confined to the oral cavity localization, resulting in systemic reaction is rare, resulting in damage to the body’s vital organs is extremely rare, of course, there is a condition that is best to choose the best choice of gold alloy Porcelain crown repair.