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AimTo compare the amount of apically extruded debris and irrigant produced by two Ni‐Ti instruments and hand files when removing root fillings, and to compare two experimental models.
MethodologySixty single straight root canals in human mandibular premolars were prepared with K‐files and filled with gutta‐percha and AH Plus sealer. The teeth were randomly divided into three groups of 20 for removal...
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