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Article
A study to compare the cleaning efficiency of three different irrigation devices at different root canal levels (An in vitro study)

Authors: Walid N. Al- Hashimi وليد الهاشمي --- Ali H. Alani علي هاني العاني
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2011 Volume: 23 Issue: 4 Pages: 10-15
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Irrigation of the canal system permits removal of residual tissue in the canal anatomy that cannot bereached by instrumentation of the main canals so the aim of this study was to compare and evaluate the efficiencyof conventional irrigation system, Vibringe sonic irrigation system and Endovac irrigation system in removing of dentindebris at three levels of root canals and to compare the percentage of dentin debris among the three levels foreach irrigation system.Materials and methods: Forty-five extracted premolars with approximately straight single root canals were randomlydistributed into 3 test groups of 15 teeth each. All canals were prepared with Protaper Universal hand files to size #F4,and irrigated with 2.5% NaOCl 1ml between files and 5ml for 60 seconds as a final irrigant by different irrigationdevices; group one, by using conventional system; group two, by using Vibringe sonic irrigation system and groupthree, by using the Endovac system. After the final irrigation, the roots were split longitudinally and photographedwith a digital camera. The roots were magnified to 100X; a percentage of debris was calculated for the apical 0-3, 3-6 and 6-9 mm. The debris score was calculated as a percentage of the total area of the canal that contained debrisas determined by pixels in Adobe PhotoshopCS2. Data were analyzed statistically by ANOVA and LSD at 5%significant level.Results: when comparing the debris remaining, both the Endovac and Vibringe groups showed significantly lessdebris than the conventional group at all three levels (p < 0.01). The Endovac group showed significantly less debristhan the Vibringe group at 3-9 mm levels while no significant difference found between the Endovac system andVibringe system at apical 0-3mm .The apical 0-3 mm showed significantly more debris than both the 3-6 and 6-9 mmfor all groups.Conclusion: the EndoVac system showed a higher cleaning capacity of the canal at all levels, followed by theprotocols that used Vibringe sonic irrigation system. The conventional irrigation system with maxi-i-probe needlesshowed inferior results. The apical three millimeters showed a greater amount of debris than the 3-9 millimetres fromthe working length, regardless of the irrigation device used.

Keywords

dentin debris --- Vibringe --- Endovac


Article
A study to compare the cleaning efficiency of different irrigation systems for macro debris removal in instrumented canals (An in vitro study)

Authors: Hussein A. Hussein --- Mohammed R. Hameed محمد رشيد حميد
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2015 Volume: 27 Issue: 2 Pages: 11-16
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Irrigation of the canal system permits removal of residual tissue in the canal anatomy that cannot bereached by instrumentation of the main canals so the aim of this study was to compare and evaluate the efficiencyof conventional irrigation system, endoactivator sonic irrigation system,P5 Newtron Satelec passive ultrasonicirrigation and Endovac irrigation system in removing of dentin debris at three levels of root canals and to comparethe percentage of dentin debris among the three levels for each irrigation system.Materials and methods: Forty extracted premolars with approximately straight single root canals were randomlydistributed into 4 tested groups of 10 teeth each. All canals were prepared with Protaper Universal hand files to size#F4, and irrigated with 2.5% NaOCI 1 ml between files and 5ml for 60 seconds as a final irrigant by different irrigationdevices; group one, by using conventional system; group two, by using Endoactivator sonic irrigation system, groupthree, by using Satelec Passive Ultrasonic irrigation and group four by using the Endovac system. After the finalirrigation, the roots were split longitudinally and photographed with a digital microscope. The roots were magnifiedto 100X; a percentage of debris was calculated for the apical 0-3, middle 3-6 and coronal 6-9 mm. The debris scorewas calculated as a percentage of the total area of the canal that contained debris as determined by pixels inAdobe PhotoshopCS5. Data were analyzed statistically by ANOVA and LSD at 5% significant level.Results: when comparing the debris remaining, the Endovac, Endoactivator and Satelec groups showed significantlyless debris than the conventional group at all three levels (p < 0.01). The Endovac group showed significantly lessdebris than the Endoactivator group at middle and coronal levels while no significant difference found between theEndovac system and Endoactivator system at apical level. The apical 0-3 mm showed significantly more debris thanboth the middle and coronal level for all groups.Conclusion: The EndoVac system showed a higher cleaning capacity of the canal at all levels, followed by theprotocols that used Endoactivator sonic irrigation system. The conventional irrigation system with maxi-i-probeneedles showed inferior results. The apical three millimeters showed a greater amount of debris than the 3-9millimetres from the working length, regardless of the irrigation device used


Article
A study to compare the efficiency of different instrumentation systems for cleaning oval-shaped root canals (An in vitro study)

Authors: Tay H. Kadhom طي كاظم --- Walid N. Al-Hashimi وليد الهاشمي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 1 Pages: 49-55
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Proper cleaning and shaping of the whole root canal space have been recognized as a realchallenge, particularly in oval-shaped canals.This in vitro study was conducted to evaluate and compare theefficiency of different instrumentation systems in removing of dentin debris at three thirds of oval-shaped root canalsand to compare the percentage of remaining dentin debris among the three thirds for each instrumentation system.Materials and methods: Fifty freshly extracted human mandibular molars with single straight oval-shaped distal rootcanals were randomly divided into five groups of ten teeth each. Group One: instrumentation with ProTaperUniversal hand instruments, Group Two: instrumentation with ProTaper Universal rotary instruments, Group Three:instrumentation with Revo-Srotary instruments, Group Four: instrumentation withTwisted rotary files and Group Five:instrumentation with Self-Adjusting Files (SAF). Sodium hypochlorite (3%) was used as an irrigant for all groups. Aftercanals preparation, the roots were split longitudinally and photographed with a professional digital camera. Theimages of root sections were then magnified to 100x and the percentage of remaining dentin debris calculated forthe apical, middle and coronal thirds by dividing the pixels occupied by debris at each third by the total pixelsrepresenting the entire area of the canal using Adobe Photoshop CS6. Data were analyzed statistically by ANOVAand LSD at 1% and 5% significant levels.Results: Both ProTaper hand and ProTaper rotary files resulted in significantly cleaner canals than Revo-S and Twistedrotary files at the middle and coronal thirds. The Self-Adjusting Files produced significantly cleaner canals at thethree thirds than all the other groups. The coronal and middle thirds showed a greater amount of remaining dentindebris than the apical third for all groups except a non-significant difference found between the apical and middlethirds in SAF group.Conclusion: The Self-Adjusting Files allowed more efficient cleaning of oval-shaped root canals than hand androtary instruments

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