More types of mobile phones, and the structure can be divided according to speed and low-speed high-speed mobile phones, high-speed mobile dental handpiece using high pressure air driven turbine handpiece for micro turbine speed can be up to 300,000 to 500,000 r / min, bur cutting speed can be up to 15m / s, while the low-speed mobile dental handpiece because it is gear, speed can be transferred per minute for thousands of 30000 rpm.
2013年10月11日星期五
all-ceramic dental advantage fine examples
Said ceramic dental Well, then, with all-ceramic dental porcelain teeth are not the same as what is it? In fact, the all-ceramic dental, by definition, it is the non-metallic in nature, saying that white is inside and outside
Full of porcelain. The inner crown porcelain teeth are made of metal, ceramic powder is only outside veneer. All-ceramic dental porcelain teeth than was good?
In other words: What are the ultrasonic scaler advantages of all-ceramic dental do?
Advantages of an all-ceramic dental:
All-ceramic dental characteristics of a transparent unmatched, which is not comparable to the porcelain, porcelain teeth as the inner layer is opaque metal, even if the appearance of the layer of ceramic covered
Powder, will also affect the transparency of porcelain teeth.
[All-ceramic dental Advantage 2]:
All-ceramic dental health of the gums, ceramic materials in the mouth of the physical properties of neutral, it is with the body's biological structure is very coordinated, highly biocompatible
. Such as the use of nickel-chromium alloy porcelain teeth, easy to cause allergies, causing gum swelling, dental tools bleeding, and all-ceramic tooth is basically not found sensitive cases.
[Three] all-ceramic dental advantages:
Porcelain teeth will not change color, the metal oxide is formed in the mouth gray oxide, scattered deposited onto the gingival margin, causing the gums grayed out, affect the appearance, dental chair not all-ceramic dental
Have this problem.
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