brazed
English translation: physically bonded
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| 09:33 Aug 12, 2006 |
| English language (monolingual) [PRO] Medical - Medical: Dentistry | |||||||
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|  Selected response from: juvera Local time: 00:39 | ||||||
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| SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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| 5 +2 | physically bonded |
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| 4 | soldered (metals) with an alloy |
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| 4 | instrument containing an alloy (for strength) |
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| Discussion entries: 2 | |
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Answers
9 mins confidence: 
soldered (metals) with an alloy Explanation: According to Penguin dictionary, braze - to solder metal with an alloy e.g. of brass and silver, that melts on contact with the heated metals being joined |
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13 mins confidence:
instrument containing an alloy (for strength) Explanation: Front view of a tooth cut with a premium brazed spiraled instrument (75x magnification) fig 18a braze |breɪz| verb [ trans. ] [often as adj. ] ( brazed) form, fix, or join by soldering with an alloy of copper and zinc at high temperature. noun a brazed joint. -------------------------------------------------- Note added at 32 mins (2006-08-12 10:06:16 GMT) -------------------------------------------------- the way i see it - you could only make that cut with an instrument containing an alloy, which gives that instrument strength (it's 75x magnification!). premium - top of the range instrument etc... |
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58 mins confidence: peer agreement (net): +2
peer agreement (net): +2physically bonded Explanation: The explanation is here: BRAZING VS ELECTROPLATING: Until the early 1970s, all dental diamond instruments were made by electroplating, which simply entraps diamond crystals in a layer of nickel-based plating material.In this manufacturing process, the instrument blank is typically inserted into a bed of loose diamond crystals in a plating tank, an electrical circuit is established within the fluid in the tank, and plating material is electrically deposited on the blank. ENTER THE BRAZED DIAMOND: In 1971 a process was patented for the high-temperature brazing of diamond crystals to an instrument head. While the electroplating process only traps crystals in a layer of plating material, the brazing process physically bonds the diamond crystals to the instrument. It is analogous to the difference between the physical retention of amalgam fillings and the adhesive bonding retention of composite fillings. Whereas amalgam is mechanically retained by the preparation and composite is chemically bonded to tooth, so too are electroplated diamonds trapped by plating material and brazed diamond crystals physically bonded to the instrument blanks. We mentioned above how electroplating surrounds the diamond crystals, trapping them at various levels above the plating material. With brazing, a layer of special brazing metal is adhered to both the instrument blank and the diamond crystals with intense heat, permanently bonding the crystals to the instrument blank.The benefit of the brazing technique is that more diamonds can be bonded to the cutting head, without having so many crystals buried by plating material. http://www.garrisondental.com/products/gforce_wp-manu.cfm |
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