Clinical Oral Investigations

, Volume 10, Issue 1, pp 50–54 | Cite as

Dissolving efficacy of organic solvents on root canal sealers

  • J. Martos
  • M. T. Gastal
  • L. Sommer
  • R. G. Lund
  • F. A. B. Del Pino
  • P. W. R. Osinaga
Original Article

Abstract

The aim of this study was to evaluate the solubility of three types of root canal sealers in three organic solvents used in endodontics. The solubility of calcium-hydroxide-based (Sealer 26), silicon-polydimethylsiloxane-based (RoekoSeal), and zinc-oxide–eugenol based (Endofill and Intrafill) sealers was assessed in eucalyptol, xylol, orange oil, and distilled water. Eighty samples of each filling material were prepared according to the manufacturers’ instructions and then divided into four groups for immersion in solvent for 2 or 10 min. The means of sealer dissolution in solvents were obtained by the difference between the original preimmersion weight and the postimmersion weight in a digital analytical scale. Data were statistically analyzed with the Student’s t test, and multiple comparisons were performed with Student–Newman–Keuls. Xylol and orange oil showed similar effects, with significant solubilization (P<0.05) of the tested cements. Endofill and Sealer 26 did not show any significant difference in solubilization at the two immersion times, whereas RoekoSeal and Intrafill showed a more pronounced solubility at 10 min. The lowest levels of solubilization occurred in RoekoSeal, Sealer 26, Endofill, and Intrafill. It is concluded that xylol and orange oil presented similar solvent effects with a significant solubility of the tested cements.

Keywords

Solubility Sealers Organic solvents 

References

  1. 1.
    Bergenholtz G et al (1992) Retreatment of endodontic fillings. Scand J Dent Res 87:217–224Google Scholar
  2. 2.
    De Deus QD (1975) Frequency, location and direction of the lateral, secondary and accessory canals. J Endod 11:361–366CrossRefGoogle Scholar
  3. 3.
    Erdemir A, Adanir N, Belli S (2003) In vitro evaluation of the dissolving effect of solvents on root canal sealers. J Oral Sci 45:123–126PubMedGoogle Scholar
  4. 4.
    Friedman S, Moshonov J, Trope M (1992) Efficacy of removing glass ionomer cement, zinc oxide eugenol, and epoxy resin sealers from retreated root canals. Oral Surg Oral Med Oral Pathol 73:609–612PubMedCrossRefGoogle Scholar
  5. 5.
    Friedman S, Stabholz A, Tamse A (1990) Endodontics retreatment—case selection and technique. Part 3. Retreatment techniques. J Endod 16:643–649Google Scholar
  6. 6.
    Friedman S, Moshonov J, Trope M (1993) Residue of gutta-percha and a glass ionomer cement sealer following root canal retreatment. Int Endod J 26:169–172PubMedCrossRefGoogle Scholar
  7. 7.
    Görduysus MÖ, Tasman F, Tuncer S, Etikan I (1997) Solubilizing efficiency of different gutta-percha solvents: a comparative study. J Nihon Univ Sch Dent 39:133–135PubMedGoogle Scholar
  8. 8.
    Jeng H, ElDeeb ME (1987) Removal of hard paste fillings from the root canal by ultrasonic instrumentation. J Endod 13:295–298PubMedCrossRefGoogle Scholar
  9. 9.
    Krell KV, Neo J (1985) The use of ultrasonic endodontic instrumentation in the re-treatment of a paste-filled endodontic tooth. Oral Surg Oral Med Oral Pathol 60:100–102PubMedCrossRefGoogle Scholar
  10. 10.
    Ladley RW, Campbell AD, Hicks ML, Li SH (1991) Effectiveness of halothane used with ultrasonic or hand instrumentation to remove gutta-percha from the root canal. J Endod 17:221–224PubMedCrossRefGoogle Scholar
  11. 11.
    Mandel E, Friedman S (1992) Endodontic retreatment: a rational approach to root canal reinstrumentation. J Endod 16:565–569CrossRefGoogle Scholar
  12. 12.
    Moshonov J, Trope M, Friedman S (1994) Retreatment efficacy 3 months after obturation using glass ionomer cement, zinc oxide–eugenol, and epoxy resin sealers. J Endod 20:90–92PubMedCrossRefGoogle Scholar
  13. 13.
    Mounce R (2004) Current concepts in gutta-percha removal in endodontic retreatment. N Y State Dent J 70:3235Google Scholar
  14. 14.
    Oyama KON, Siqueira EL, Santos M (2002) In vitro study of effect of solvent on root canal retreatment. Braz Dent J 13:208–211PubMedCrossRefGoogle Scholar
  15. 15.
    Pécora JD, Costa WF, Filho DS, Sarti SJ (1992) Apresentação de um óleo essencial, obtido de Citrus aurantium, eficaz na desintegração do cimento de óxido de zinco–eugenol do interior do canal radicular. Odonto 1:130–132Google Scholar
  16. 16.
    Schäfer E, Zandbiglari T (2002) A comparison of the effectiveness of chloroform and eucalyptus oil in dissolving root canal sealers. Oral Surg Oral Med Oral Pathol 93:611–616Google Scholar
  17. 17.
    Schuurs AH, Moorer WR, Wesselink PR (2004) Solvents for removal of gutta-percha from root canals. I. Efficacy. Ned Tijdschr Tandheelkd 111:271–275PubMedGoogle Scholar
  18. 18.
    Schuurs AH, Moorer WR, Wesselink PR (2004) Solvents for the removal of gutta-percha from root canals. 2. Side effects of chloroform, halothane and xylene. Ned Tijdschr Tandheelkd 111:303–306Google Scholar
  19. 19.
    Tamse A, Unger U, Metzger Z, Rosenberg M (1986) Gutta-percha solvents—a comparative study. J Endod 12:337–339PubMedCrossRefGoogle Scholar
  20. 20.
    Wennberg A, Orstavik D (1989) Evaluation of alternatives to chloroform in endodontic practice. Endod Dent Traumatol 5:234–237PubMedCrossRefGoogle Scholar
  21. 21.
    Whitworth JM, Boursin EM (2000) Dissolution of root canal sealer cements in volatile solvents. Int Endod J 33:19–24PubMedCrossRefGoogle Scholar
  22. 22.
    Wilcox LR (1995) Endodontic retreatment with halothane versus chloroform solvent. J Endod 21:305–307PubMedCrossRefGoogle Scholar
  23. 23.
    Wilcox LR, Krell KV, Madison S, Rittman B (1987) Endodontic retreatment: evaluation of gutta-percha and sealer removal and canal reinstrumentation. J Endod 13:453–457PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • J. Martos
    • 1
  • M. T. Gastal
    • 1
  • L. Sommer
    • 1
  • R. G. Lund
    • 1
  • F. A. B. Del Pino
    • 2
  • P. W. R. Osinaga
    • 3
  1. 1.Department of Clinics, Pelotas Dental SchoolFederal University of PelotasPelotasBrazil
  2. 2.Department of Biochemistry, Chemistry InstituteFederal University of PelotasPelotasBrazil
  3. 3.Department of Operative Dentistry, Pelotas Dental SchoolFederal University of PelotasPelotasBrazil

Personalised recommendations