Biocompatibility and setting time of CPM-MTA and white Portland cement clinker with or without calcium sulfate
AUTOR(ES)
BRAMANTE, Clovis Monteiro, KATO, Marcia Magro, ASSIS, Gerson Francisco de, DUARTE, Marco Antonio Hungaro, BERNARDINELI, Norberti, MORAES, Ivaldo Gomes de, GARCIA, Roberto Brandão, ORDINOLA-ZAPATA, Ronald, BRAMANTE, Alexandre Silva
FONTE
J. Appl. Oral Sci.
DATA DE PUBLICAÇÃO
2013-02
RESUMO
Objective To evaluate the biocompatibility and the setting time of Portland cement clinker with or without 2% or 5% calcium sulfate and MTA-CPM. Material and Methods Twenty-four mice (Rattus norvegicus) received subcutaneously polyethylene tubes filled with Portland cement clinker with or without 2% or 5% calcium sulfate and MTA. After 15, 30 and 60 days of implantation, the animals were killed and specimens were prepared for microscopic analysis. For evaluation of the setting time, each material was analyzed using Gilmore needles weighing 113.5 g and 456.5 g, according to the ASTM specification Number C266-08 guideline. Data were analyzed by ANOVA and Tukey's test for setting time and Kruskal-Wallis and Dunn test for biocompatibility at 5% significance level. Results Histologic observation showed no statistically significant difference of biocompatibility (p>0.05) among the materials in the subcutaneous tissues. For the setting time, clinker without calcium sulfate showed the shortest initial and final setting times (6.18 s/21.48 s), followed by clinker with 2% calcium sulfate (9.22 s/25.33 s), clinker with 5% calcium sulfate (10.06 s/42.46 s) and MTA (15.01 s/42.46 s). Conclusions All the tested materials showed biocompatibility and the calcium sulfate absence shortened the initial and final setting times of the white Portland cement clinker.
Documentos Relacionados
- Avaliação microscópica da implantação, em subcutâneo de ratos, do agregado trióxido mineral - CPM e do clínquer do cimento Portland branco puro e acrescido de 2 e 5% de sulfato de cálcio e determinação de seus tempos de presa
- In Vitro Cytotoxicity of White MTA, MTA Fillapex® and Portland Cement on Human Periodontal Ligament Fibroblasts
- Influence of bismuth oxide concentration on the pH level and biocompatibility of white Portland cement
- In vitro sealing ability of white and gray mineral trioxide aggregate (MTA) and white Portland cement used as apical plugs
- Avaliação microscópica da resposta do tecido subcutâneo de ratos à implantação do Endo-CPM-Sealer e do Clínquer do cimento Portland cinza puro e acrescido com sulfato de cálcio a 2% e 5%