Influence of four kinds of temporary fillings on coronal microleakage of endodontically treated teeth

doi:10.3969/j.issn.2095-4344.2015.03.014

Abstract

Abstract:

BACKGROUND: The teeth that need to do the root canal treatment mostly have large dental defects which are even residual crown and residual root, but it takes a long time for completing the permanent restoration after treatment. So the temporary fillings are important for sealing coronal microleakage after root canal treatment.

OBJECTIVE: To evaluate the influence of temporary filling materials on coronal microleakage of endodontically treated teeth and to discuss the influence of time on the sealing ability of coronal temporary fillings.

METHODS: Totally 126 extracted teeth were collected, and divided into experimental group (n=120), positive control group (n=3) and negative control group (n=3). Root canal treatment was done in the experimental and positive control groups, and then the experimental group was subdivided into four groups in which, Coltosol, Caviton, ZOE, Ceivitron were used as temporary filling materials, respectively. In the positive control group, there was no filling material. The teeth in the negative control group maintained intact. The microleakage of samples was observed at 1, 2, 4 weeks after temporary sealing.

RESULTS AND CONCLUSION: There was no dye in the root canal of the negative control group, but the whole root canal in the positive control group was stained. At 1 week after sealing, the microleakage lengths of the Coltosol and Caviton groups were significantly shorter than those of the ZOE and Ceivitron groups (P < 0.05). At 2 weeks after sealing, the microleakage length of the Coltosol group was significantly shorter than that of the Ceivitron group (P < 0.05). At 4 weeks after sealing, the microleakage lengths of the Coltosol, Caviton and ZOE were significantly shorter than that of the Ceivitron group (P < 0.05). with the extension of sealing time, the microleakage lengths of the four subgroups were all increased, and there were significant differences in each group at different time points (P < 0.05). These findings indicate that Coltosol and Caviton are the best as the temporary filling materials, followed by ZOE, and Ceivitron is the worst. The optimum time of temporary sealing is 1-2 weeks for Coltosol and Caviton, and 1 week for ZOE and Ceivitron.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

全文链接：

Key words: Root Canal Obturation, Root Canal Therapy

CLC Number:

R318

Zhang Run-zhen, Xia Rong, Ji Zhang-zhang. Influence of four kinds of temporary fillings on coronal microleakage of endodontically treated teeth[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(3): 405-409.

Figures/Tables 2

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