EFFECTS OF IRRIGATION SOLUTIONS ON ROOT CANAL DENTIN
Rita Leknicke , PhD, Research Associate Lithuanian Energy Institute Laboratory Of Materials Research, Kaunas LithuaniaAbstract
The use of irrigation solutions is an essential step in root canal therapy to disinfect the root canal system and remove debris. However, these solutions can affect the structure of the root canal dentin, which can have implications for the success of the treatment. This study aimed to investigate the effects of different irrigation solutions on root canal dentin. A total of 60 extracted human mandibular molars were randomly divided into four groups and irrigated with different solutions. The effects of the irrigation solutions on the root canal dentin were evaluated using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The results showed that sodium hypochlorite had the most significant effect on the structure of root canal dentin, causing significant widening and irregularity of the dentinal tubules. Chlorhexidine, either alone or in combination with sodium hypochlorite, had a lesser effect on dentinal tubules. These findings have implications for the choice of irrigation solutions in root canal therapy, as the use of sodium hypochlorite may compromise the integrity of the root canal dentin.
Keywords
Irrigation solutions;, Root canal dentin;, Sodium hypochlorite
References
Haapasalo M, Shen Y, Qian W, Gao Y. Irrigation in endodontics. Dent Clin North Am. 2010;54(2):291-312.
Gu LS, Kim JR, Ling J, et al. Review of contemporary irrigant agitation techniques and devices. J Endod. 2009;35(6):791-804.
Paqué F, Luder HU, Sener B, Zehnder M. Tubular sclerosis rather than the smear layer impedes dye penetration into the dentine of endodontically instrumented root canals. Int Endod J. 2006;39(1):18-25.
Gomes BP, Souza SF, Ferraz CC, Teixeira FB, Zaia AA, Valdrighi L. Effectiveness of 2% chlorhexidine gel and calcium hydroxide against Enterococcus faecalis in bovine root dentine in vitro. Int Endod J. 2003;36(4):267-75.
Marending M, Peters OA, Zehnder M. Factors affecting the outcome of orthograde root canal therapy in a general dentistry hospital practice. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005;99(2):119-24.
Sen BH, Wesselink PR, Türkün M. The smear layer: a phenomenon in root canal therapy. Int Endod J. 1995;28(3):141-8.
Zehnder M. Root canal irrigants. J Endod. 2006;32(5):389-98.
Hülsmann M, Heckendorff M, Lennon A. Chelating agents in root canal treatment: mode of action and indications for their use. Int Endod J. 2003;36(12):810-30.
Weller RN, Brady JM, Bernier WE. Efficacy of ultrasonic cleaning. J Endod. 1980;6(2):740-3.
Pashley DH, Tay FR, Yiu C, Hashimoto M, Breschi L, Carvalho RM. Collagen degradation by host-derived enzymes during aging. J Dent Res. 2004;83(3):216-21.