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| Format: | Artículo científico |
| Language: | en |
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Universidade da Região de Joinville
2013
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| Online Access: | https://www.redalyc.org/articulo.oa?id=153027495004 |
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Table of Contents:
- In vitro analysis of the pH alteration of the dentine after using different calcium hydroxide- based pastes Cláudio Maniglia-Ferreira Fabio de Almeida Gomes Nadine Luísa Soares de Lima Guimarães Marcelo de Moraes Vitoriano Tatyana Albuquerque Ximenes Roberto Alves dos Santos Medicina Endodontics pH alteration chlorhexidine calcium hydroxide intracanal medications Introduction and Objective: To analyze the pH increase at the external root surface after the use of different calcium hydroxide pastes (Calen, calcium hydroxide associated with 2% chlorhexidine gel, calcium hydroxide associated with saline) with and without EDTA as chelating agent before the topical application of the intracanal medication. Material and methods: One-hundred single-rooted extracted teeth were cleaned and shaped. They were randomly divided into six experimental groups (n = 15) and one control group (n = 10), according to the medication to be used. The teeth were kept immersed in saline solution and the pH measurements were weekly verified with the aid of a pH meter. Results: It was verified the pH increasing at the first week in almost all groups. Only the groups in which Ca(OH) 2 was associated with 2% chlorhexidine gel exhibited a significant evolution in the pH increasing over time (p = 0.0116). The use of EDTA did not result in higher pH values (p = 0.2278). Conclusion: i) the pH increased in all associations used; ii) 2% chlorhexidine gel allowed the gradual pH increasing over time; iii) the smear layer removal did not influence on the pH increasing 2013 artículo científico 1806-7727 https://www.redalyc.org/articulo.oa?id=153027495004 en http://www.redalyc.org/revista.oa?id=1530 RSBO Revista Sul-Brasileira de Odontologia application/pdf Universidade da Região de Joinville RSBO Revista Sul-Brasileira de Odontologia (Brasil) Num.2 Vol.10