Efficiency of rotary nickel-titanium K3 instruments compared with stainless steel hand K-Flexofile. Part 2. Cleaning effectiveness and shaping ability in severely curved root canals of extracted teeth

2003 ◽  
Vol 36 (3) ◽  
pp. 208-217 ◽  
Author(s):  
E. Schäfer ◽  
R. Schlingemann
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