medigraphic.com
ISSN 1870-199X (Print)
Órgano oficial de la Facultad de Odontología, UNAM

2011, Number 4

<< Back Next >>

Rev Odont Mex 2011; 15 (4)

Calcium hydroxide influence and intrachannel medication in apical leakage

Sánchez OJ, Guerrero J, Elorza H, García ARL

Language: Spanish
References: 23
Page: 224-230
PDF size: 190.20 Kb.


ABSTRACT

The purpose of this study was to determine the amount of remaining Ca(OH)2 after three removal techniques as well as determining its influence on apical seal. Eighty extracted mandibular premolars were prepared with ProTaper system®, dressed with Ca(OH)2 paste and stored 10% humidity at 37 °C for 7 days. Experimental groups according to the removal technique were: NaCIO 2.5% + EDTA (G1), NaCIO 2.5% + EDTA 18% and ultrasonic activation (G2); NaCIO and ultrasonic activation (G3). Forty teeth were longitudinally split in order to measure remaining Ca(OH)2. The other 40 specimens were obturated with ultrasonic condensation of gutta-percha technique. These teeth were cleared and apical leakage was measured. Statistical analysis showed difference among groups with respect to Ca(OH)2 removal (P ‹ 0.03), Group G2 showed least amount of remaining Ca(OH)2. Likewise, leakage results showed statistical difference among groups (P ‹ 0.01). Group 2 showed best results with respect to leakage. There was no statistical difference between groups 1 and 3. Conclusion: Irrigation with NaCIO 2.5% EDTA 18% and ultrasonic activation proved to be most effective in removing Ca(OH)2 from canal walls. Calcium hydroxide medication residuals inside canals might increase apical leakage.


REFERENCES

  1. Law A, Messer H. An evidence-based analysis of the antimicrobial effectiveness of intracanal medicaments. J Endod 2004; 30: 689-9.

  2. Evans MD, Baumgartner JC, Khemaleelakul S, Xia T. Efficacy of calcium hydroxide: Clorhexidine paste as an intracanal medication in bovine dentin. J Endod 2003; 29, 338-9.

  3. Lambrianidis T, Kosti E. Removal efficacy of various calcium hydroxide/cholorhexidine medicaments from the root canal. Int Endodon J 2006; 39:55-61.

  4. Estrela C, Mamede-Neto I, Pécora JD. Root canal filling with calcium hydroxide using diferent techniques. Braz Dent J 2002; 13: 53-56.

  5. Sigurdson A, Stancil R, Madison S. Intracanal placement of Ca(OH)2: A comparison of techniques. J Endod 1992; 18: 367-70.

  6. Cruz GA, Holland R, Alfaro JF. Efecto de la colocación de pastas de hidróxido de calcio con diferentes vehículos, como medicación intraconducto, sobre el sellado apical de la obturación endodóncica. Braz Endod J 2001; 19: 284-92.

  7. Wu M-K, Kontakiotis EG, Wesselink PR. Decoloration of 1% methylene blue solution in contact with dental filling materials. J Dentistry 1998; 26: 585-9.

  8. LW M van der Sluis, Versluis M. Passive ultrasonic irrigation of the root canal: a review of the literature. Review. Int Endodon J 2007; 40 (6): 415-426.

  9. Kenee DM, Allemang JD, Johnson JD, Hellstein J, Nichol BK. A quantitative assessment of efficacy of various calcium hydroxide removal techniques. J Endodon 2006; 32 (6): 563-5.

  10. Kim S, Kim Y. Influence of calcium hydroxide intracanal medication on apical seal. Int Endodon J 2002; 35: 623-628.

  11. Margelos J, Eliades G, Verdalis C, Palaghias G. Interaction of calcium hydroxide with zinc oxide eugenol type sealers: a potential clinical problema. J Endod 1997; 23: 43-8.

  12. Calt S, Serper A. Dentinal tubule penetration of root canal sealers after root canal dressing with calcium hydroxide. J Endodon 1999; 25: 431-3.

  13. Robertson D, Leeb I, McKee M, Brewer E. A clearing technique for the study of root canal systems. J Endod 1980; (6): 421-24.

  14. Ruddle CJ. The ProTaper technique. Endodontic Topics 2005; 10(1): 187-90.

  15. Porkaew P, Retief DH, Barfield RD, Lacefield WR, Soong S. Effects of calium hydroxide paste as an intracanal medicament on apical seal. J Endod 1990; (16): 369-374.

  16. Holland R, Alexandre AC, Murata SS, Dos Santos CA, Dezan Jr. E. Apical leakeage following root canal dressing with calcium hydroxide. Endod Dent Traumatol 1995; 11: 261-263.

  17. Kontakiotis EG, Wu M-K, Wesselink PR. Effect of calcium hydroxide dressing on seal of permanent root filling. Dental Traumatol 1997; 11: 261-4.

  18. Yoshikawa M, Noguchi K, Toda T. Effect of particle sizes in India ink onits use in evaluation of apical seal. Journal of Osaka Dental University 1997; 31: 67-70.

  19. Goldberg F, Artaza L. Inluence of calcium hydroxide dressing on the obturation of simulated lateral canals. J Endod 2002; 28 (2): 99-101.

  20. Teixeira CS, Felippe MCS, Felippe WT. The effect of application time of EDTA and NaOCl on intracanal smear layer removal: an SEM analysis. Int Endodon J 2005; (38): 285-290.

  21. Vehicle factor in calcium hydroxide removal. J Appl Oral Sci 2007; 52: 40-47.

  22. Salgado R, Moura-Netto C. Comparison of different irrigants on calcium hydroxide medication removal: microscopic cleanliness evaluation. Oral Surg Oral Med Ora Pathol Oral Radiol Endodon 2009; 107 (4): 580-84.

  23. Peters OA, Peters C. Limpieza y conformación del sistema de conductos radiculares. En: Cohen S, Hargreaves K. Vías de la Pulpa. Novena Edición. Elsevier España: 2008: 300-309,548.




2020     |     www.medigraphic.com