Revista de Odontologia da UNESP
http://revodontolunesp.com.br/article/doi/10.1590/1807-2577.06218
Revista de Odontologia da UNESP
Original Article

Evaluation of calcium release and pH value of light-cured cavity liners for pulp-capping materials

Avaliação da liberação de cálcio e alteração de pH de forradores cavitários fotoativados para capeamento pulpar

Kamila de Figueiredo PEREIRA; Rosymere Freitas de Sousa CRUVINEL; Andrea Abi Rached DANTAS; Milton Carlos KUGA

Downloads: 1
Views: 201

Abstract

Abstract: Introduction: Cavity liners based calcium hydroxide present low strength and high solubility that is consider a disadvantage. In order to enhance these properties it was developed a light-cured cavity liner based calcium hydroxide containing resin.

Objective: The purpose of this study was to evaluate the pH and calcium release of light-cured cavity liners.

Material and method: There were prepared specimens (n=10) with the Ultra-Blend ® plus, Biocal® (light cured cements) and Hydro C® (control). The samples were stored in 10 mL of distilled water and maintained at 37 °C. After 24 hours, 7, and 14 days, there were analyzed pH and the release of calcium levels. The data were statistically analyzed by ANOVA and Tukey test (α = 0.05).

Result: The results of pH showed Hydro C > Ultra-Blend plus > Biocal. Biocal presented worst calcium release.

Conclusion: Light-cured materials present lower calcium release and alteration in pH values.

Keywords

Calcium hydroxide, dental cavity lining, dydrogen-ion concentration

Resumo

Resumo: Introdução: Forradores cavitários à base de hidróxido de cálcio apresentam baixa resistência e alta solubilidade. Para resolver este problema, foi desenvolvido forradores à base de hidróxido de cálcio fotoativáveis contendo resina para melhorar suas propridades.

Objetivo: A proposta deste estudo foi avaliar a alteração de pH e liberação de cálcio de forradores fotoativáveis.

Material e método: Foram preparadas amostras (n=10) com Ultra-Blend® plus, Biocal ® (cimentos fotoativáveis) e Hydro C® (controle). As amostras foram armazenadas com 10 mL de água destilada e mantidas em estufa à 37 °C. Depois de 24 horas, 7 e 14 dias, foram avaliados os níveis de liberação de cálcio e a alteração de pH. Os dados foram analisados estatisticamente pelo teste ANOVA, seguido do pós teste Tukey (α = 0.05).

Resultado: Os resultados de pH mostraram Hydro C > Ultra-Blend plus > Biocal. Biocal apresentou a pior liberação de cálcio.

Conclusão: Materiais fotoativados apresentam menor liberação de cálcio e alteração nos valores de pH.
 

Palavras-chave

Hidróxido de cálcio, forrador cavitário dental, concentração de íon de hidrogênio

References

Weiner RS. Liners, bases, and cements: a solid foundation. Gen Dent. 2002 Sep-Oct;50(5):442-6. PMid:12448897.

Duque C, Hebling J, Smith AJ, Giro EM, Oliveira MF, Souza Costa CA. Reactionary dentinogenesis after applying restorative materials and bioactive dentin matrix molecules as liners in deep cavities prepared in nonhuman primate teeth. J Oral Rehabil. 2006 Jun;33(6):452-61. http://dx.doi.org/10.1111/j.1365-2842.2005.01585.x. PMid:16671993.

Weiner R. Liners and bases in general dentistry. Aust Dent J. 2011 Jun;56(1 Suppl):11-22. http://dx.doi.org/10.1111/j.1834-7819.2010.01292.x. PMid:21564112.

Silva LA, Freitas AC, Carvalho FK, Queiroz AM, Nelson-Filho P, Porto-Neto ST. Direct pulp capping with a self-etching adhesive system: histopathologic evaluation in dogs’ teeth. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Jul;108(1):e34-40. http://dx.doi.org/10.1016/j.tripleo.2009.03.017. PMid:19540442.

Aguilar P, Linsuwanont P. Vital pulp therapy in vital permanent teeth with cariously exposed pulp: a systematic review. J Endod. 2011 May;37(5):581-7. http://dx.doi.org/10.1016/j.joen.2010.12.004. PMid:21496652.

An S, Gao Y, Ling J, Wei X, Xiao Y. Calcium ions promote osteogenic differentiation and mineralization of human dental pulp cells: implications for pulp capping materials. J Mater Sci Mater Med. 2012 Mar;23(3):789-95. http://dx.doi.org/10.1007/s10856-011-4531-0. PMid:22190198.

Schuurs AH, Gruythuysen RJ, Wesselink PR. Pulp capping with adhesive resin-based composite vs. calcium hydroxide: a review. Endod Dent Traumatol. 2000 Dec;16(6):240-50. http://dx.doi.org/10.1034/j.1600-9657.2000.016006240.x. PMid:11202889.

Modena KC, Casas-Apayco LC, Atta MT, Costa CA, Hebling J, Sipert CR, et al. Cytotoxicity and biocompatibility of direct and indirect pulp capping materials. J Appl Oral Sci. 2009 Nov-Dec;17(6):544-54. http://dx.doi.org/10.1590/S1678-77572009000600002. PMid:20027424.

Schröder U. Effects of calcium hydroxide-containing pulp-capping agents on pulp cell migration, proliferation, and differentiation. J Dent Res. 1985 Apr;64(Spec No):541-8. http://dx.doi.org/10.1177/002203458506400407. PMid:3857254.

Duarte MA, Martins CS, Oliveira Cardoso Demarchi AC, Godoy LF, Kuga MC, Yamashita JC. Calcium and hydroxide release from different pulp-capping materials. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007 Jul;104(1):e66-9. http://dx.doi.org/10.1016/j.tripleo.2007.01.024. PMid:17499530.

Estrela C, Sydney GB, Bammann LL, Felippe O Jr. Mechanism of action of calcium and hydroxyl ions of calcium hydroxide on tissue and bacteria. Braz Dent J. 1995;6(2):85-90. PMid:8688662.

Okabe T, Sakamoto M, Takeuchi H, Matsushima K. Effects of pH on mineralization ability of human dental pulp cells. J Endod. 2006 Mar;32(3):198-201. http://dx.doi.org/10.1016/j.joen.2005.10.041. PMid:16500225.

Fernandes AM, Silva GA, Lopes N Jr, Napimoga MH, Benatti BB, Alves JB. Direct capping of human pulps with a dentin bonding system and calcium hydroxide: an immunohistochemical analysis. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Mar;105(3):385-90. http://dx.doi.org/10.1016/j.tripleo.2007.08.031. PMid:18280971.

Francisconi LF, Freitas AP, Scaffa PMC, Mondelli RFL, Francisconi PAS. Water sorption and solubility of different calcium hydroxide cements. J Appl Oral Sci. 2009 Sep-Oct;17(5):427-31. http://dx.doi.org/10.1590/S1678-77572009000500014. PMid:19936520.

von Fraunhofer JA, Marshall KR, Holman BG. The effect of base/liner use on restoration leakage. Gen Dent. 2006 Mar-Apr;54(2):106-9. PMid:16689065.

Cox CF, Hafez AA, Akimoto N, Otsuki M, Mills JC. Biological basis for clinical success: pulp protection and the tooth-restoration interface. Pract Periodontics Aesthet Dent. 1999 Sep;11(7):819-26. PMid:10853583.

Mickenautsch S, Yengopal V, Banerjee A. Pulp response to resin-modified glass ionomer and calcium hydroxide cements in deep cavities: A quantitative systematic review. Dent Mater. 2010 Aug;26(8):761-70. http://dx.doi.org/10.1016/j.dental.2010.03.021. PMid:20452013.

Nair PN, Duncan HF, Pitt Ford TR, Luder HU. Histological, ultrastructural and quantitative investigations on the response of healthy human pulps to experimental capping with mineral trioxide aggregate: a randomized controlled trial. Int Endod J. 2008 Feb;41(2):128-50. http://dx.doi.org/10.1111/j.1365-2591.2007.01329.x. PMid:17956562.

Hirschman WR, Wheater MA, Bringas JS, Hoen MM. Cytotoxicity comparison of three current direct pulp-capping agents with a new bioceramic root repair putty. J Endod. 2012 Mar;38(3):385-8. http://dx.doi.org/10.1016/j.joen.2011.11.012. PMid:22341080.

Kitasako Y, Shibata S, Tagami J. Migration and particle clearance from hard-setting Ca(OH)2 and self-etching adhesive resin following direct pulp capping. Am J Dent. 2006 Dec;19(6):370-5. PMid:17212080.

Burke FJ, Watts DC. Weight loss of three resin-based lining materials containing calcium following a phosphoric acid-etching and washing cycle. J Dent. 1989 Feb;17(1):38-40. http://dx.doi.org/10.1016/0300-5712(89)90008-0. PMid:2645332.

Santos AD, Moraes JC, Araújo EB, Yukimitu K, Valério WV Fo. 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.

Pinto AS, Araujo FB, Franzon R, Figueiredo MC, Henz S, García-Godoy F, et al. Clinical and microbiological effect of calcium hydroxide protection in indirect pulp capping in primary teeth. Am J Dent. 2006 Dec;19(6):382-6. PMid:17212082.

Corralo DJ, Maltz M. Clinical and ultrastructural effects of different liners/restorative materials on deep carious dentin: a randomized clinical trial. Caries Res. 2013;47(3):243-50. http://dx.doi.org/10.1159/000345648. PMid:23343804.

Natale LC, Rodrigues MC, Xavier TA, Simões A, Souza DN, Braga RR. Ion release and mechanical properties of calcium silicate and calcium hydroxide materials used for pulp capping. Int Endod J. 2015 Jan;48(1):89-94. http://dx.doi.org/10.1111/iej.12281. PMid:24646329.
 

5b97b43c0e8825337f88bac9 rou Articles
Links & Downloads

Rev. odontol. UNESP

Share this page
Page Sections