The sealing ability of resilon and gutta-parcha following different smear layer removal methods: an ex vivo study

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• 作者：Noushin Shokouhinejad ; Mohammad R. Sharifian ; Marziyeh Aligholi ; Hadi Assadian ; Rachel K. Tabor ; Mohammad H. Nekoofar
• 刊名：Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
• 出版年：2010
• 出版时间：July 2010
• 年：2010
• 卷：110
• 期：1
• 页码：e45-e49
• 全文大小：211 K

文摘

Objective

The objective of this study was to compare the ex-vivo sealing ability of Resilon/new Epiphany (SE) sealer to that of gutta-percha/AH-Plus following smear layer removal with EDTA or MTAD.

Study design

One hundred extracted single-rooted human teeth were divided into 4 experimental groups and 2 positive and negative control groups. EDTA was used in groups 1 and 2. In groups 3 and 4 MTAD was used. The root canals were then obturated with gutta-percha/AH-Plus in groups 1 and 3 and Resilon/Epiphany (SE) in groups 2 and 4. After sterilization, the samples were coronally exposed to human saliva and monitored every 24 hours for 60 days.

Results

In groups 1, 2, 3, and 4, 45 % , 65 % , 90 % , and 65 % of specimens leaked within 60 days, respectively. There were statistically significant differences between group 1 and 3 (P < .05).

Conclusions

Resilon/Epiphany (SE) system is as effective as gutta-percha/AH-Plus in preventing saliva leakage. MTAD did not adversely affect the sealing ability of Resilon/Epiphany (SE).