超声与声波牙髓治疗系统对根管清洁度和充填效果的定量与定性分析
A quantitative and qualitative analysis of ultrasonic versus sonic endodontic systems on canal cleanliness and obturation.
作者信息
Kanter Valerie, Weldon Emily, Nair Uma, Varella Claudio, Kanter Keith, Anusavice Kenneth, Pileggi Roberta
机构信息
Department of Endodontics, University of Florida, College of Dentistry at Gainesville, Gainesville, FL 32610-0436, USA.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Dec;112(6):809-13. doi: 10.1016/j.tripleo.2011.06.002. Epub 2011 Sep 9.
OBJECTIVE
The purpose of this study was to compare 2 irrigation techniques by evaluating canal cleanliness and obturation of lateral/accessory canals.
STUDY DESIGN
Seventy-five extracted canines were instrumented to a size #40/0.06 taper. The EndoActivator (EA) was compared with an ultrasonic unit for final irrigation. Each unit was used for 1 minute each with 6.15% NaOCl and 17% EDTA. A control group received syringe irrigation. Thirty teeth were sectioned and evaluated for debris removal and open dentinal tubules at 3/5 mm from the apical foramen with a scanning electron microscope. Forty-five teeth were examined for obturation of lateral canals.
RESULTS
The EA was significantly better in removing debris at all levels when compared with other treatment groups (P < .05) and resulted in obturation of significantly more numbers of lateral canals (P < .01.)
CONCLUSIONS
The EA provided better obturation of lateral and accessory canals and resulted in less remaining debris.
目的
本研究旨在通过评估根管清洁度以及侧支/副根管的充填情况来比较两种冲洗技术。
研究设计
将75颗拔除的犬牙预备至40/0.06锥度。将EndoActivator（EA）与超声设备用于最终冲洗进行比较。每种设备分别使用含6.15%次氯酸钠和17%乙二胺四乙酸（EDTA）的冲洗液各冲洗1分钟。对照组采用注射器冲洗。30颗牙齿进行切片，并用扫描电子显微镜评估距根尖孔3/5毫米处的碎屑清除情况及开放的牙本质小管。45颗牙齿用于检查侧支根管的充填情况。
结果
与其他治疗组相比，EA在各个水平的碎屑清除方面均显著更好（P < 0.05），并且导致更多数量的侧支根管被充填（P < 0.01）。
结论
EA能更好地充填侧支和副根管，且残留碎屑更少。
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