时间:2019-02-18 作者:英语课 分类:英语新闻


英语课

   LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant.


  But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillings, injections and fillings -- and unpleasantness, a press release by King's College London (KCL) said on Monday.
  Dentists normally treat caries in a tooth by drilling to remove the decay and filling the tooth with a material such as amalgam 1 or composite resin 2. But scientists at King's College London (KCL) took a different approach, one that re-builds the tooth and heals it without the need for drills, needles or amalgam.
  British scientists develop drill-free tooth treatment
  By accelerating the natural process by which calcium 3 and phosphate minerals re-enter the tooth to repair a defect, the device boosts the tooth's natural repair process.
  The new method could be in use at the dentist's chair in the next 3 years, according to researchers.
  The two-step method first prepares the damaged part of the enamel 4 outer layer of the tooth, then uses a tiny electric current to 'push' minerals into the tooth to repair the damaged site. The defect is remineralised in a painless process that requires no drills, no injections and no filling materials.
  Electric currents are already used by dentists to check the pulp 5 or nerve of a tooth; the new device uses a far smaller current than that currently used on patients and which cannot be felt by the patient.
  Professor Nigel Pitts from KCL said: "Not only is our device kinder to the patient and better for their teeth, but it's expected to be at least as cost-effective as current dental treatments. Along with fighting tooth decay, our device can also be used to whiten teeth."

n.混合物;汞合金
  • To counter this myth,we explained that we're really an amalgam of little guys.为了打破这个神话,我们解释说,我们确实是由一群小小的老百姓所组成的混合体。
  • American literature is to our eyes a curious amalgam of familiar and strange.我们认为,美国文学把我们所熟悉的和陌生的东西奇妙地结合起来了。
n.树脂,松香,树脂制品;vt.涂树脂
  • This allyl type resin is a highly transparent, colourless material.这种烯丙基型的树脂是一种高度透明的、无色材料。
  • This is referred to as a thixotropic property of the resin.这种特性叫做树脂的触变性。
n.钙(化学符号Ca)
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
n.珐琅,搪瓷,瓷釉;(牙齿的)珐琅质
  • I chipped the enamel on my front tooth when I fell over.我跌倒时门牙的珐琅质碰碎了。
  • He collected coloured enamel bowls from Yugoslavia.他藏有来自南斯拉夫的彩色搪瓷碗。
n.果肉,纸浆;v.化成纸浆,除去...果肉,制成纸浆
  • The pulp of this watermelon is too spongy.这西瓜瓤儿太肉了。
  • The company manufactures pulp and paper products.这个公司制造纸浆和纸产品。
标签: 技术
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absorben
almond crescent
along in years
arc-stream voltage
assembly level
automatic steering device
black butter
bowl pack
braeriaches
broad-band antenna
carrier frequency amplifier
catastro-fuck
chilean natural potassium nitrate
cipher
clenoliximab
concentrating zone thin layer plate
contorsion
cypripedium calceoluss
dementia polysclerotica
Diploclisia
dot matrix size
dough plasticity
excess product
execution pripeline
extractum polygoni hydropiperis fluidum
extraperiosteally
extuberance
fayalite peridotite
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full-rich position
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genemotor
give thanks
given the shaft
go hit the spot
gothicized
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homogeneous bounded domain
Japan Air Society
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kryptol furnace
leaved
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long diagonal of indentation
longwall undercutter
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svat
taken out a patent for
temporized
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topic for discussion
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trailing characteristics
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Vasoconstrictine
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weak light source
weather controlled message
Wendlandia luzoniensis
X-ray tube voltage