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

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 fur...

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Published in:Oral surgery, oral medicine, oral pathology, oral radiology and endodontics oral medicine, oral pathology, oral radiology and endodontics, 2007-12, Vol.104 (6), p.846-851
Main Authors: Lin, Zheng-Mei, DDS, PhD, Jhugroo, Ashroy, BDS, DDS, Ling, Jun-Qi, DDS, MD, PhD
Format: Article
Language:English
Subjects:
Bicuspid - surgery
Biological and medical sciences
Dental Leakage - prevention & control
Dentin - ultrastructure
Dentistry
Humans
Medical sciences
Otorhinolaryngology. Stomatology
Polyesters - chemistry
Polyesters - therapeutic use
Retreatment - methods
Root Canal Filling Materials - chemistry
Root Canal Filling Materials - therapeutic use
Surgery
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Summary: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.
ISSN:1079-2104
1528-395X
DOI:10.1016/j.tripleo.2007.05.020