A quantitative glucose method by constant air pressure for evaluating the sealing ability of four root canal sealers / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 474-477, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-322356
ABSTRACT
<p><b>OBJECTIVE</b>To introduce a modified model for quantitative testing of glucose microleakage by constant air pressure and evaluate the sealing ability of four root canal sealers including AU Plus, Roeko Seal, Cortisomol and RC Sealer.</p><p><b>METHODS</b>Fifty-six straight maxillary anterior teetb were randomly divided into four experimental groups with 12 samples in each group, group A AH Plus, group B Roeko Seal, group C Cortisomol, group D RC Sealer, and positive and negative control group with 4 samples in each. After regular root preparation, samples in experimental groups were obturated by cold gutta-percha lateral compaction technique with sealers according to group description. Control groups were obturated with cold gutta-percha only. Through the model above, the value of glucose microleakage from crown to root was measured at 1, 3, 5, 7, 10, 15, 20, 25, 30 days with the glucose oxidase-peroxidase method (GOD-POD).</p><p><b>RESULTS</b>At day 1, 3, 5, no significant difference of microleakage was found between group A and B (P > 0.05). The same result was also seen between group C and D. From 7 days, microleakage value in each experimental group gradually increased, and statistical difference was found between groups (P < 0.05).</p><p><b>CONCLUSION</b>This new model using constant air pressure is easy to establish, sensitive and practical. Among all the sealers evaluated, polydimethylsiloxane based root canal sealer, Roeko Seal has the greatest sealing ability, while epoxy-amine resin based AH Plus is second and Zinc Oxide based Cortisomol and RC Sealer have the least sealing ability.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Root Canal Filling Materials
/
Zinc Oxide-Eugenol Cement
/
Dental Cements
/
Dental Leakage
/
Dental Pulp Cavity
/
Air Pressure
/
Epoxy Resins
/
Glucose
/
Gutta-Percha
Limits:
Humans
Language:
Chinese
Journal:
West China Journal of Stomatology
Year:
2012
Type:
Article
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