Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지

CLEANSING EFFECT OF AIR-DRIVEN SONIC SYSTEM IN ROOT CANAL PREPARATION

공기진동(空氣振動) 근관형성법(根管形成法)의 근관정화효과(根管淨化效果)

  • Kim, Yong-Duk (Department of Conservative Dentistry Kyungpook National University) ;
  • Cho, Kyew-Zeung (Department of Conservative Dentistry Kyungpook National University)
  • 김용덕 (경북대학교 치과대학 보존학교실) ;
  • 조규징 (경북대학교 치과대학 보존학교실)
  • Published : 1988.09.30
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Abstract

In order to study the cleansing effect of air-driven sonic system, the author prepared root canals on 48 extracted human permanent single rooted teeth using hand instrumentation and aforementioned method, half and half of the cases. In order for comparison of the degree of remnant debris and cleanliness, the cross sections at 3mm and 7mm levels from the apex were stereomicroscopically observed and scored in accordance with predetermined degree. The obtained results were as follows: 1. Air-driven sonic system was more effective in cleansing root canal than hand instrumentation at apical 3mm level. (p < 0.01) 2. Air-driven sonic system was more effective in cleansing root canal than hand instrumentation at apical 7mm level. (p < 0.01) 3. In hand instrumentation, Helisonic file was more effective in cleansing root canal than Rispisonic file. (p < 0.05) In air-driven sonic system, on the other hand, there were no significant difference between the two files.

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