Restorative Dentistry and Endodontics
- 제26권1호
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- Pages.77-85
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- 2001
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
근관내 잔존 Calcium Hydroxide제재가 치근단 미세누출에 미치는 영향
EFFECT OF CALCIUM HYDROXIDE REMNANT AS AN INTRACANAL DRESSING ON THE APICAL LEAKAGE
초록
The purpose of this in vitro study was to compare the apical leakage in extracted teeth filled with gutta-percha subsequent to dressing with one of three different calcium hydroxide preparations. Thirty six extracted teeth with single canal were used in this study. After working length determination, canals were prepared with K flexo files to a #40 at the working length. Step-back flaring was produced by using #45, #50 K flexo files and #2, #3, #4 Gates Glidden burs. The teeth were randomly divided into 3 groups of 10 each : the remaining six teeth were used for negative and positive leakage control: Group 1, dressed with pure calcium hydroxide powder (Sigma, USA) mixed with distilled water; Group 2, dressed with Metapaste (Metadent, Korea) ; Group 3, dressed with Vitapex (Neo Dental, Japan). Teeth were sealed with Caviton (GC, Japan) and incubated in 100% humidity, at 37