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9月21日星期六
What is the "six old tooth"? Any protection "six old tooth
1 What is the "six old tooth"? Any protection "six old tooth"?
What is the "six old tooth"? Any protection "six old tooth"? In primary molars behind the first permanent molars, since the eruption in children six years old or so, so called it "age six teeth." Just eruption of the "six old tooth" is not very strong, but without the occlusal surface of uneven wear, fissure deep, easy accumulation of food debris and plaque, and difficult to clean, so they are subject to the erosion of acid-producing bacteria, is prone to caries. We can use methods fissure in before the occurrence of dental caries, Tim flat occlusal surface deep fissure, dental material the accumulation of food debris and plaque is not easy to achieve the effect of prevention of dental caries. In addition, the "six old tooth" eruption early, but also quietly last a long in the rear molars, are often mistaken for teeth, dental caries early did not receive timely treatment, until the pain, we have very serious damage from even a teenager would have to be unplugged regret for life. To avoid this situation, you should bring the child to the hospital for checkups regularly. When the judgment is deciduous or permanent teeth can not be a problem, you should go to the hospital for a doctor to help solve the problem.
children dentition duration "double tooth" how to do
2 children dentition duration "double tooth" how to do?
Length of time the child dentition "double tooth" how to do? The tooth replacement, permanent teeth have erupted and no normal shedding of deciduous teeth, there will be "double tooth" situation. "Double tooth" phenomenon is most common in the lower front dental material teeth replaced. In the absence of the normal shedding of deciduous occupy permanent positions, a new eruption of permanent teeth can not be ranked in the normal position of the dentition, often in the lingual dentition, resulting in tooth malalignment. At this point, should be promptly removed without the normal shedding of deciduous teeth, eruption of the permanent teeth with the power to go back dentition.
2013年9月16日星期一
dental treatment new ideas - loose teeth can be retained
Loose teeth is not only pulled? Oral famous medical experts cattle Dongping chief physician has given this a negative answer. In the recently held a press release
At the meeting, cattle Dongping presents new ideas for dental treatment: try to keep loose tooth or root, and the use of a "rigid support theory" production "rigid support
Type of denture. "
Due to periodontitis and other causes of loose teeth, many doctors think we should pull loose teeth, the patient generally accept. Cattle Dongping think, teeth and root
Will cause the loss of a dental material series of changes jaw. For example, loss of teeth, it will lose the periodontal ligament passes through the root of the tooth to the alveolar force, and this continued
Regular physiological stimuli, can promote blood circulation in the jaw, to maintain the normal physiological state, and alveolar bone metabolism, prevent alveolar bone absorption and shrinkage,
To maintain its proper height, width and fullness, which denture support, retention and stability play an important role. Clinical cattle Dongping also found that even if the root
Without any treatment, it also prevents the persistence of jaw atrophy.
In addition, keep loose teeth or roots, it retains the periodontal ligament and proprioceptive nerve endings. When conducting functional occlusal tooth when the body of the periodontal ligament
Receptors sense the size and direction of occlusal force, so that occlusal force maintained within the physiological range, which is very important for the protection of the abutments.
Cattle Dongping scientific literature in a foreign country found a "rigid support theory", put this theory into practice, made of "rigid-supported denture."
After ten years of clinical trial and error, cattle East peace his colleagues thousands of advanced periodontitis patients subjected to preserve and utilize loose teeth cure, with
When the production process and technology continue to be refined, and achieved satisfactory results.
2013年9月8日星期日
gingival recession What harm
Gingival recession is a common disease in dentistry, dental health hazard gingival recession. Well, what harm gingival recession? When gums shrink after aging for teeth
Alveolar bone declining ability to transport nutrients and alveolar bone atrophy along with it shorter, oral medicine called "resorption phenomenon."
Gingival recession led to this "micro-joints" package to maintain strength reduction, teeth began to loosen, dental material and alveolar bone is absorbed, shallow roots of the teeth, dental
Teeth longer, with the growing phenomenon of increased bone resorption, teeth naturally fall off.
Gingival recession also led to root exposure (dentin part), no enamel surface of teeth, gums if there is no protection, not only easy when brushing
Subject to wear, while the cold, heat, acid stimulation is very sensitive to oral medicine called "dentin hypersensitivity", people often mistaken for this phenomenon is exposed tooth nerve conduction
Cause pain, which is wrong.
2013年8月16日星期五
dental machine history
Tablet press tablet press appeared in Europe earlier, there are nearly a hundred years of history. In China in 1949, Shanghai Tianxiang Hua Kee Iron Works imitation caused British 33
Punch tablet press; 1951, according to the U.S. 16-punch tablet machine converted into a domestic 18-punch tablet machine, which is the earliest domestic manufacturing pharmaceutical machinery; 1957, designed and manufactured
ZP25-4 type tableting machine; dental material 1960, to design and manufacture successful 60-30 type tableting machine, with automatic rotation, compression function, pressed varieties tablets, sugar tablets,
Calcium, coffee tablets. The same year also design and manufacture a type ZP33, ZP19 type tabletting machine.
In the 1970s began Shanghai Daiichi Pharmaceutical Machinery Factory (Shanghai Tianxiang's predecessor) and Shandong Medical Instrument as compression tableting machine tablet press sentinel manufacturers large
Production ZP series tablet press. "Plan" period, the Department of Aerospace 206 HZP26 successfully developed high-speed tablet presses. In 1980, the Shanghai Pharmaceutical Machinery Factory first system designed to
Made the ZP-21W type tableting machine, to the early 1980s the international advanced level, is the first domestic product. 1987, the introduction of the Federal German Fette company microcomputer control
Manufacturing technology, design and manufacture of P3100-37 rotary tablet press with automatic control tablet weight, pressure, automatic digital film, films and other features automatic elimination of waste, closed
Structured, the degree of purification to GMP requirements. 1997, the annual Shanghai Pharmaceutical Machinery Co., Ltd. Tianxiang Kin developed ZP100 series rotary tablet press, GZPK100 Department
Column speed rotary tablet press.
In the 21st century, with the deepening of GMP certification, in full compliance with the GMP ZP series rotary tablet machine have appeared: Shanghai's ZP35A, Shandong Liaocheng ZP35D
And so on. High-speed rotary tablet machine production, the pressure signal acquisition and rejection and other technology has been developed rapidly, the highest yield is generally greater than 300,000 / hour, the most
Large pre-pressure 20kN, 100kN maximum principal stress 80kN or more. For example, the Beijing Science and Technology Co., Ltd. Sinopharm Long Li GZPLS-620 Series High Speed Rotary Tablet Press,
Shanghai Tianxiang Jian teeth whitening machines Pharmaceutical Machinery Co. GZPK3000 series high speed rotary tablet press, Beijing Aeronautical Manufacturing Technology Research Institute, PG50 Series High Speed Rotary
Sheet machine.
With the level of manufacturing process technology, automatic control technology to improve and tableting machine manufacturers use a variety of special needs, a variety of special-purpose tablet press
Have also emerged. For example, laboratory ZP5 rotary tablet machine for dry powder tabletting rotary tablet press machine for gunpowder explosion-proof ZPYG51 series tablet
Rotary tablet machine.
2013年7月23日星期二
What are the advantages of digital porcelain teeth
What are the advantages of digital porcelain teeth:
1, shape perfect: gingival margin no black line, no heavy feeling, no swelling and bleeding gums appearance, so you feel real porcelain teeth from your gums grow out of my
The.
2, natural color: with real teeth to match dental material the transparency, no longer under the lights "green teeth shining" embarrassment.
3, strengthen durable: with metal porcelain teeth comparable compressive strength, completely without worries porcelain cracked appearance. Recommended reading: digital and traditional porcelain teeth porcelain teeth
Difference
4, no health hazard: No adverse effects of metal Apex Locator ions oozing your health.
5, the success rate: Adopt international advanced 3D digital shaping technology, the porcelain teeth in place rate increased to 99.2%.
1, shape perfect: gingival margin no black line, no heavy feeling, no swelling and bleeding gums appearance, so you feel real porcelain teeth from your gums grow out of my
The.
2, natural color: with real teeth to match dental material the transparency, no longer under the lights "green teeth shining" embarrassment.
3, strengthen durable: with metal porcelain teeth comparable compressive strength, completely without worries porcelain cracked appearance. Recommended reading: digital and traditional porcelain teeth porcelain teeth
Difference
4, no health hazard: No adverse effects of metal Apex Locator ions oozing your health.
5, the success rate: Adopt international advanced 3D digital shaping technology, the porcelain teeth in place rate increased to 99.2%.
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