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1 Comparison of ultrasonic and sonic root end preparations using anaerobic bacterial leakage model
Nak-Yeon Cho, Dong-Sung Park, Hyeon-Mee Yoo, Tae-Seok Oh
J Korean Acad Conserv Dent.2002;27(5):530-534.   Published online 2002 September 30     DOI: http://dx.doi.org/10.5395/JKACD.2002.27.5.530
      

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