An in vitro evaluation of the sealing ability of a new root-canal-obturation system.

In this study the sealing ability of a new urethane methacrylate resin-based sealer, EndoRez, was evaluated using a fluid-filtration model. Sixty-four single-rooted lower bicuspids were decoronated, instrumented, and divided into 3 groups of 20 each with 4 teeth used as controls. In group A, the roots were obturated with EndoRez and a single cone of gutta-percha, group B with AH Plus and a single cone of gutta-percha, and group C was obturated using gutta-percha with warm vertical compaction and AH Plus sealer. All specimens were allowed to set for 7 days in 100% humidity at 37 degrees C. The groups were compared for differences in the amount of leakage (mm/h) using a Chi-square test. The leakage of group A was significantly higher at p = 0.01 than the other two groups. There was no significant difference in leakage between groups B and C.

[1]  J. Ingle.  Obturation of the radicular space , 2002 .

[2]  B. Jacquot,et al.  Lack of correlation among three methods for evaluation of apical leakage. , 2001, Journal of endodontics.

[3]  P. Wesselink,et al.  Diminished leakage along root canals filled with gutta-percha without sealer over time: a laboratory study. , 2000, International endodontic journal.

[4]  T. Attin,et al.  Evaluation of the apical seal of root canal fillings with different methods. , 1998, Journal of endodontics.

[5]  W. Tay,et al.  A methacrylate-based cement used as a root canal sealer. , 1998, International endodontic journal.

[6]  O. Zmener,et al.  Sealing properties of a new epoxy resin-based root-canal sealer. , 1997, International endodontic journal.

[7]  J. C. Donnelly,et al.  An in vitro evaluation of coronal microleakage in obturated root canals without coronal restorations. , 1997, Journal of endodontics.

[8]  S. Friedman,et al.  Evaluation of success and failure after endodontic therapy using a glass ionomer cement sealer. , 1995, Journal of endodontics.

[9]  P. Wesselink,et al.  Fluid transport and bacterial penetration along root canal fillings. , 1993, International endodontic journal.

[10]  P R Wesselink,et al.  Endodontic leakage studies reconsidered. Part I. Methodology, application and relevance. , 1993, International endodontic journal.

[11]  Glickman Gn,et al.  Contemporary perspectives on canal obturation. , 1992 .

[12]  B. Y. Cha,et al.  Influence of entrapped air on the accuracy of leakage studies using dye penetration methods. , 1989 .

[13]  T. P. Pitt Ford,et al.  A new root canal sealer based on calcium hydroxide. , 1989, Journal of endodontics.

[14]  M. Goldman,et al.  The usefulness of dye-penetration studies reexamined. , 1989, Oral surgery, oral medicine, and oral pathology.

[15]  O. Gómez-Marín,et al.  Obturation of root canals using the single cone gutta-percha technique and dentinal bonding agents. , 1987, International endodontic journal.

[16]  D. Pashley,et al.  Microleakage measurement of selected restorative materials: a new in vitro method. , 1986, The Journal of prosthetic dentistry.

[17]  F. Vertucci,et al.  Apical sealing efficacy of endodontic obturation techniques. , 1986, International endodontic journal.

[18]  Stephen Cohen,et al.  Pathways of the Pulp , 1976 .

[19]  H Schilder,et al.  Filling root canals in three dimensions. , 1967, Dental clinics of North America.