Comparison of three obturation techniques with regard to bacterial leakage

Brazilian Journal of Oral Sciences

Cleber Keiti Nabeshima²  Guilherme Henrique Rosa Martins²  Mário Francisco De Pasquali Leonardo²  Regina Célia Furukava Shin²  Silvana Cai¹  Manoel Eduardo De Lima Machado² 

[1] ,University of São Paulo School of Dentistry Department of Restorative DentistrySão Paulo SP ,Brazil

关键词: dental leakage;    Enterococcus faecalis;    root canal obturation;   

DOI  :  10.1590/S1677-32252013000300011

来源: SciELO

【 摘 要 】

AIM: To compare bacterial leakage in root canals obturated with the modified single-cone, lateral condensation, and continuous wave of condensation techniques. METHODS: Distobuccal root canals of maxillary molars were shaped up to ProTaper F2 and obturated with modified singlecone, lateral condensation or continuous wave of condensation technique. Two-chamber bacterial model using Enterococcus faecalis was employed for bacterial leakage evaluation for 30 days. The chi-square test was applied to evaluate differences between turbid and non-turbid samples, and the Kruskal-Wallis test was used for evaluating the time necessary for microleakage. A significance level of 5% was set for all analyses. RESULTS: The modified single-cone technique showed leakage in 73.3% of samples, lateral condensation in 66.6%, and continuous wave of condensation in 53.3%, but there were no significant differences among the groups (p>0.05). CONCLUSIONS: It can be concluded that the modified single-cone technique shows similar sealing efficacy to that of lateral condensation and continuous wave of condensation technique.

【 授权许可】

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