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KMID : 0362320090340030215
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Journal of Korean Academy of Operative Dentistry
2009 Volume.34 No. 3 p.215 ~ p.222
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IN VITRO EVALUATION OF CLEANING EFFICACY OF VARIOUS IRRIGATION METHODS IN MANDIBULAR MOLARS
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Lee So-Young
Son Won-Jun
Lee Woo-Cheol
Kum Kee-Yeon
Bae Kwang-Shik
Baek Seung-Ho
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Abstract
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The aim of this in vitro study was to evaluate the cleaning efficacy of various irrigation methods in the mandibular mesial roots. The forty five mesial root canals were shaped by Profile .06 instruments to apical size #30 and irrigated with 5ml of 3.5% NaOCl. The teeth were divided into 3 groups and irrigated finally for 1 minute; Group 1: syringe irrigation. Group 2: ultrasonic irrigation. Group 3: RinsEndo irrigation. After histological processing, the cross sections of apical 1, 3, and 5 mm level were examined with an optical microscope. The cleanliness values of canals and isthmuses were calculated and analyzed by Mann-Whitney U test. 1. There were no significant differences in both canal and isthmus cleanliness between syringe irrigation and ultrasonic irrigation except 5 mm level of isthmus. 2. RinsEndo irrigation had significantly higher canal cleanliness values than syringe irrigation at 1 mm and 3 mm levels (p<0.05). Also, RinsEndo irrigation had significantly higher isthmus cleanliness values than syringe irrigation at all levels evaluated (p<0.05). 3. There were no statistical differences in both canal and isthmus cleanliness between ultrasonic irrigation and RinsEndo irrigation except 3 mm level of canal. From this study, RinsEndo irrigation can be useful as an additional irrigation procedure.
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KEYWORD
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canal irrigation, cleanliness, mesial canal
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