The impact of the addition of iodoform on the physicochemical properties of an epoxy-based endodontic sealer

• Autor(a) principal: Kuga, Milton Carlos
• Data de Publicação: 2014
• Outros Autores: Faria, Gisele, Só, Marcus Vinicius Reis, Keine, Kátia Cristina, Santos, Alailson Domingos dos, Duarte, Marco Antonio Húngaro, Kopper, Patrícia Maria Poli
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/101955
• topic: Endodontia; Materiais odontológicos; Endodontics; Root canal filling materials; Physical and chemical properties

Due to the low radiopacity of Sealer 26, iodoform is frequently empirically added to this sealer. Thus, the interference of this procedure with the physicochemical properties of Sealer 26 must be evaluated. Objective: This study evaluated the influence of the addition of iodoform on setting time, flow, solubility, pH, and calcium release of an epoxy-based sealer. Material and Methods: The control group was pure Sealer 26, and the experimental groups were Sealer 26 added with 1.1 g, 0.55 g or 0.275 g of iodoform. Setting time evaluation was performed in accordance with the ASTM (266%)3 specification. The analysis of flow and solubility was in accordance with the /SO 6346%2))8 specification. 9or the evaluation of pH and calcium ion release, polyethylene tubes were filled with the materials and immersed in flas;s with 8) ml of deioni<ed water. After 24 h, 4, 84, 28, 23, and 4> days pH was measured. In 45 days, the calcium released was evaluated with an atomic absorption spectrophotometer. Results: The addition of iodoform increased setting time in comparison with pure sealer (AB).)>C. As for flow, solubility, and calcium release, the mixtures presented results similar to pure sealer (p>0.05). In the 24 h period, the mixture with 1.1 g and 0.55 g of iodoform showed lower pH than pure sealer and than sealer added with 0.275 g of iodoform (P<0.05). Conclusions: The iodoform added to Sealer 26 interferes with its setting time and solubility properties. Further studies are needed to address the clinical significance of this interference.