An evaluation of the sealing ability of a polycaprolactone-based root canal filling material (Resilon) after retreatment

作者：Lin, Zheng Mei; Jhugroo, Ashroy; Ling, Jun Qi^*

来源：Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, 2007, 104(6): 846-851.

DOI：10.1016/j.tripleo.2007.05.020

Objective. The aim of this study was to evaluate the sealing ability of Resilon after retreatment.
Study design. Sixty-six single-rooted mandibular premolars were enlarged to apical size 45 and then obturated with Resilon. The roots were randomly divided into 3 groups (n = 22/group). In group 1 no further treatment was done. Groups 2 and 3 were reinstrumented to apical size 60 using K-files and ProFile, respectively. In each group, 4 samples were kept for environmental scanning electron microscopy (ESEM) analysis. The remaining roots from groups 2 and 3 were refilled with Resilon. Sixteen roots from each group were then evaluated for microleakage; two roots served as controls. Data were analyzed statistically by Kruskall-Wallis test.
Results. There were no significant differences between the experimental groups (P > .05). The ESEM showed new attachment of resin tags on the dentin surface of retreated roots.
Conclusion. Resilon can be used for retreatment, but it still allowed microleakage.

• 出版日期2007-12
• 单位中山大学