Designed by Prof. Fu Minkui from Peking University school of stomatologyPatent No.: ZL200520107085XReduce the friction between arch wires and the slotCombine the advantage of self-ligating brackets and conventional brackets
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Designed by Prof. Fu Minkui from Peking University school of stomatologyPatent No.: ZL200520107085XReduce the friction between arch wires and the slotCombine the advantage of self-ligating brackets and conventional brackets