Willia
Posts 7
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Summary of knowledge on dental bur needle _ taper
TC (Tapper Cone) pointed cone with sharp tip used for axial plane preparation TR (Tapper Round) round conical head with rounded top corner which can be used for the preparation of all-ceramic mining drill bit crown shoulder F-Series FO Flame-like cusp used on the occlusal surface and lingual surface of anterior teeth Expand the full text S (Straight) straight/parallel series no polymerization angle except SI used for cavity preparation SF Flat head straight line no polymerization degree top right angle SR Round head straight line no polymerization degree top rounded corner SO pointed straight shape no polymerization degree top 45 degrees B (Ball) ball series ball drill BC Ring-shaped ball drill with emery cuff BR Spherical ball drill without emery cuff Other models SI Single inverted taper inverted taper drill DI Double inverted taper drill WR Discoid CR inlay preparation series CD Children's Cavity Preparation Series EX Special Shape Size identification S-Short handle SS-Very Short Shank C-thick F-fine EF-very fine L-elongated type Color marking It is the indication of particle size which is black green blue red yellow and white from coarse to fine Black extra coarse grinding needle particle size is about 150 microns/blade number is not more than 8 and extra coarse is represented by MLX Green
UF Generally the blue marking ring or the one without color marking is the commonly used standard grain size needle and the cutting efficiency is higher when the grain size is medium The cutting force of the coarse grain needle is strong but the cutting surface is rough and the texture is obvious The close degree between the crown and the prepared body is poor and the fine grain needle can be used to refine it Adaptive symptom of different forms of bur needle Our commonly used dental preparation needles include carborundum needles tungsten steel needles and so on Tapered Rock Bit Carborundum needle Diamond has high hardness and excellent physical and chemical properties The diamond grains with a certain acute angle are adhered or electroplated according to a certain direction and spacing with the central axis of the stainless steel needle as the center of the circle to make a diamond needle with a certain ability to cut hard tissues
Turbine cooling water shall be used up to 50ml per minute 10 After the tungsten steel needle is used it should be cleaned and disinfected with high temperature and high pressure Do not use chlorine-containing disinfectant to soak the needle otherwise it will cause the tungsten steel needle to rust and become blunt Return to Sohu to see more Responsible Editor wt-dthtools.com
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