대한치과보존학회:학술대회논문집 (Proceedings of the KACD Conference)

대한치과보존학회 (The Korean Academy of Conservative Dentistry)
권호 표지

Working length change by instrumentation in curved canals

  • Jo, Jeong-Im (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University) ;
  • Park, Jeong-Won (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University) ;
  • Kim, Sung-Kyo (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University)
  • 발행 : 2003.11.01
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초록

Mesiobuccal or distobuccal canals of maxillary molars and mesiobuccal or mesiolingual canals of mandibular malars were selected. Forty specimens were divided into four groups according to the instruments used : stainless steel K-files($MANI^{\circledR}$, Matsutani Seisakusho Co. Takanezawa, Japan), nickel-titanium K-files (Naviflex $NT^{TM}$, Brassler, Savannah, U.S.A.), $Profile^{\circledR}$, and $ProTaper^{TM}$ (Dentsply-Maillefer, Ballaigues, Switzerland). Occlusal surface of each tooth and root apex were flattened by using diamond burs and sandpaper. Before instrumentation, a rubber stop was fixed with glue to the ＃10 K-files of initial working length in each tooth.(omitted)

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