Revista de Odontologia da UNESP
https://revodontolunesp.com.br/journal/rou/article/doi/10.1590/1807-2577.11018
Revista de Odontologia da UNESP
Original Article

Alkalizing potential and calcium release of residues from intracanal dressing containing calcium hydroxide

Potencial de alcalinização e liberação de cálcio de resíduos de medicação intracanal contendo hidróxido de cálcio

Mariana Pires CRESPO; Kamila de Figueiredo PEREIRA; Milton Carlos KUGA; Thiago Soares PORTO; Luciana ARMADA

http://dx.doi.org/10.1590/1807-2577.11018 Rev. odontol. UNESP, vol.47, n6, p.383-387, 2018
PDF
Downloads: 0
Views: 718

Abstract

Abstract: Introduction: If the restoration, that seal the root canal from oral environment, failed or solubilize, the intracanal dressing could be partially removed, decreasing the efficiency of calcium hydroxide (CH).

Objective: To evaluate the alkalizing potential and calcium ions release of intracanal residues from different medications, in different periods.

Materials and method: Human incisors were endodontically instrumented and randomly divided (n=10). The root canals were filled with: G1⎯Calcium hydroxide (CH); G2⎯CH with 0.4% chlorhexidine digluconate (CHC); G3⎯CH with camphorated paramonochlorophenol and glycerin (HPG); G4⎯CH was maintained during all experiment, as positive control group (PC) and G5⎯ No medication was performed in the negative control group (NC). The specimens were immersed in distilled water for 7 days. The intracanal dressing was removed from the experimental groups using F1 instrument (Protaper). The teeth were stored in distilled water for 24 hours, 7, 14 and 28 days. pH value and calcium ions released were evaluated and the data were submitted to ANOVA one-way and Tukey tests.

Result: All experimental groups presented lower alkalizing potential and calcium ions release than PC (P<0.05). No significant difference was found among the experimental groups, regardless of the period (P>0.05).

Conclusion: The alkalizing potential and calcium ions release of residues from different intracanal dressing, in different periods, were similar and lower than the positive control group, that the medication was maintained inside the root canal, encouraging the replacement of intracanal dressing when the restoration fail.

Keywords

Intracanal dressing, calcium hydroxide, chlorhexidine, endodontics

Resumo

Resumo: Introdução: Se a restauração temporária, que sela o canal radicular contra o meio bucal, falhar ou solubilizar, a medicação intracanal pode ser parcialmente removida, diminuindo a eficiência do hidróxido de cálcio (CH).

Objetivo: Avaliar o potencial alcalinizante e a liberação de íons cálcio de resíduos de diferentes medicações intracanal, em diferentes períodos.

Material e método: Incisivos humanos foram endodonticamente instrumentados e divididos aleatoriamente (n=10). Os canais radiculares foram preenchidos com: G1⎯Hidróxido de cálcio (CH); G2⎯CH com 0.4% de digluconato de clorexidina (CHC); G3⎯CH com paramonoclorofenol camforado e glicerina (HPG); G4⎯CH mantido durante todo experimento, como controle positivo (PC) e G5⎯Sem medicação intracanal, como controle negativo (NC). Os espécimes foram imersos em água destilada durante 7 dias. A medicação intracanal foi removida dos grupos experimentais com um instrumento F1 (Protaper). Os dentes foram armazenados em água destilada por 24 horas, 7, 14 e 28 dias. Os dados foram submetidos aos testes ANOVA one-way e Tukey.

Resultado: Todos os grupos experimentais tiveram redução no potencial alcalinizante e na liberação dos íons cálcio, quando comparados ao controle positivo (p<0.05). Não houve diferença estatisticamente significante entre os grupos experimentais, independente do período (p>0.05).

Conclusão: O potencial alcalinizante e a liberação de íons cálcio dos resíduos de diferentes medicações intracanal, em diferentes períodos, foram similares entre si e menores que o controle positivo, onde a medicação foi mantida dentro do canal radicular, encorajando a sua troca quando a restauração falhar.
 

Palavras-chave

Curativos biológicos, hidróxido de cálcio, clorexidina, endodontia

References

Siqueira JF Jr, Lopes HP. Mechanisms of antimicrobial activity of calcium hydroxide: a critical review. Int Endod J. 1999 Sep;32(5):361-9. http://dx.doi.org/10.1046/j.1365-2591.1999.00275.x. PMid:10551109.

Yücel AC, Aksoy A, Ertas E, Güvenç D. The pH changes of calcium hydroxide mixed with six different vehicles. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007 May;103(5):712-7. http://dx.doi.org/10.1016/j.tripleo.2006.10.016. PMid:17241800.

Vianna ME, Zilio DM, Ferraz CCR, Zaia AA, Souza-Filho FJ, Gomes BPFA. Concentration of hydrogen ions in several calcium hydroxide pastes over different periods of time. Braz Dent J. 2009;20(5):382-8. http://dx.doi.org/10.1590/S0103-64402009000500005. PMid:20126906.

Ferreira FBA, Souza PAS, Vale MS, Moraes IG, Granjeiro JM. Evaluation of pH levels and calcium ion release in various calcium hydroxide endodontic dressings. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2004 Mar;97(3):388-92. http://dx.doi.org/10.1016/j.tripleo.2003.08.020. PMid:15024365.

Ercan E, Dalli M, Dülgergil CT. In vitro assessment of the effectiveness of chlorhexidine gel and calcium hydroxide paste with chlorhexidine against Enterococcus faecalis and Candida albicans. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Aug;102(2):e27-31. http://dx.doi.org/10.1016/j.tripleo.2006.02.022. PMid:16876041.

Siqueira JF Jr, Magalhães KM, Rôças IN. Bacterial reduction in infected root canals treated with 2.5% NaOCl as an irrigant and calcium hydroxide/camphorated paramonochlorophenol paste as an intracanal dressing. J Endod. 2007 Jun;33(6):667-72. http://dx.doi.org/10.1016/j.joen.2007.01.004. PMid:17509403.

Gomes BPFA, Ferraz CCR, Vianna ME, Berber VB, Teixeira FB, Souza-Filho FJ. In vitro antimicrobial activity of several concentrations of sodium hypochlorite and chlorhexidine gluconate in the elimination of Enterococcus faecalis. Int Endod J. 2001 Sep;34(6):424-8. http://dx.doi.org/10.1046/j.1365-2591.2001.00410.x. PMid:11556507.

Zehnder M, Grawehr M, Hasselgren G, Waltimo T. Tissue-dissolution capacity and dentin-disinfecting potential of calcium hydroxide mixed with irrigating solutions. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003 Nov;96(5):608-13. http://dx.doi.org/10.1016/S1079-2104(03)00157-4. PMid:14600697.

Sirén EK, Haapasalo MP, Waltimo TM, Ørstavik D. In vitro antibacterial effect of calcium hydroxide combined with chlorhexidine or iodine potassium iodide on Enterococcus faecalis. Eur J Oral Sci. 2004 Aug;112(4):326-31. http://dx.doi.org/10.1111/j.1600-0722.2004.00144.x. PMid:15279651.

Silva RAB, Leonardo MR, Silva LAB, Faccioli LH, Medeiros AI. Effect of a calcium hydroxide-based paste associated to chlorhexidine on RAW 264.7 macrophage cell line culture. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Nov;106(5):e44-51. http://dx.doi.org/10.1016/j.tripleo.2008.06.027. PMid:18718793.

Siqueira JF Jr, Uzeda M. Disinfection by calcium hydroxide pastes of dentinal tubules infected with two obligate and one facultative anaerobic bacteria. J Endod. 1996 Dec;22(12):674-6. http://dx.doi.org/10.1016/S0099-2399(96)80062-8. PMid:9220753.

Alencar AHG, Leonardo MR, Silva LAB, Silva RS, Ito IY. Determination of the p-monochlorophenol residue in the calcium hydroxide + p-monochlorophenol combination used as an intracanal dressing in pulpless teeth of dogs with induced chronic periapical lesion. J Endod. 1997 Aug;23(8):522-4. http://dx.doi.org/10.1016/S0099-2399(97)80314-7. PMid:9587324.

Bystrom A, Claesson R, Sundqvist G. The antibacterial effect of camphorated paramonochlrophenol, camphorated phenol and calcium hydroxide in the treatment of infected root canal. Endod Dent Traumatol. 1985 Oct;1(5):170-5. http://dx.doi.org/10.1111/j.1600-9657.1985.tb00652.x. PMid:3865763.

Mohammadi Z, Dummer PM. Properties and applications of calcium hydroxide in endodontics and dental traumatology. Int Endod J. 2011 Aug;44(8):697-730. http://dx.doi.org/10.1111/j.1365-2591.2011.01886.x. PMid:21535021.

Tronstad L, Andreasen JO, Hasselgren G, Kristerson L, Riis I. pH changes in dental tissues after root canal filling with calcium hydroxide. J Endod. 1981 Jan;7(1):17-21. http://dx.doi.org/10.1016/S0099-2399(81)80262-2. PMid:6938618.

Kuga MC, Tanomaru-Filho M, Faria G, Só MV, Galletti T, Bavello JR. Calcium hydroxide intracanal dressing removal with different rotary instruments and irrigating solutions: a scanning electron microscopy study. Braz Dent J. 2010;21(4):310-4. http://dx.doi.org/10.1590/S0103-64402010000400004. PMid:20976380.

Kuga MC, Campos EA, Faria-Junior NB, Só MV, Shinohara AL. Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls. Braz Oral Res. 2012 Jan-Feb;26(1):19-23. http://dx.doi.org/10.1590/S1806-83242012000100004. PMid:22344333.

Faria G, Viola KS, Kuga MC, Garcia AJ, Daher VB, Leonardo MFP, et al. Effect of rotary instrument associated with different irrigation techniques on removing calcium hydroxide dressing. Microsc Res Tech. 2014 Aug;77(8):642-6. http://dx.doi.org/10.1002/jemt.22382. PMid:24844676.

Ricucci D, Langeland K. Incomplete calcium hydroxide removal from the root canal: a case report. Int Endod J. 1997 Nov;30(6):418-21. http://dx.doi.org/10.1111/j.1365-2591.1997.tb00734.x. PMid:9588983.

Kuga MC, Duarte MA, Sant’Anna-Júnior A, Keine KC, Faria G, Dantas AA, et al. Effects of calcium hydroxide addition on the physical and chemical properties of a calcium silicate-based sealer. J Appl Oral Sci. 2014 Jun;22(3):180-4. http://dx.doi.org/10.1590/1678-775720130032. PMid:25025558.

Seux D, Couble ML, Hartmann DJ, Gauthier JP, Magloire H. Odontoblast-like cytodifferentiation of human dental pulp cells in vitro in the presence of a calcium hydroxide-containing cement. Arch Oral Biol. 1991;36(2):117-28. http://dx.doi.org/10.1016/0003-9969(91)90074-5. PMid:2059161.

Calt S, Serper A, Ozçelik B, Dalat MD. pH changes and calcium ion diffusion from calcium hydroxide dressing materials through root dentin. J Endod. 1999 May;25(5):329-31. http://dx.doi.org/10.1016/S0099-2399(06)81165-9. PMid:10530255.

Duarte MAH, Midena RZ, Zeferino MA, Vivan RR, Weckwerth PH, Santos F, et al. Evaluation of pH and calcium ion release of calcium hydroxide pastes containing different substances. J Endod. 2009 Sep;35(9):1274-7. http://dx.doi.org/10.1016/j.joen.2009.05.009. PMid:19720230.

Santos AD, Moraes JC, Araújo EB, Yukimitu K, Valério Filho WV. Physico-chemical properties of MTA and a novel experimental cement. Int Endod J. 2005 Jul;38(7):443-7. http://dx.doi.org/10.1111/j.1365-2591.2005.00963.x. PMid:15946264.

Hosoya N, Takahashi G, Arai T, Nakamura J. Calcium concentration and pH of the periapical environment after applying calcium hydroxide into root canals in vitro. J Endod. 2001 May;27(5):343-6. http://dx.doi.org/10.1097/00004770-200105000-00009. PMid:11485253.
 

5c743f3b0e8825e127da818c rou Articles
Links & Downloads
1807-2577 (Electronic)
Rev. odontol. UNESP ©2024 All rights reserved.

Rev. odontol. UNESP

Share this page
Page Sections