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

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 C266-03 speciflcation. The analysis of flow and solubility was in accordance with the ISO 6876-2001 speciflcation. For the evaluation of pH and calcium ion release, polyethylene tubes were filled with the materials and immersed in flasks with 10 ml of deionized water. After 24 h, 7, 14, 21, 28, and 45 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 (P<0.05). 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 signiflcance of this interference

Terapia cognitivo-comportamental com intervenção familiar para crianças e adolescentes com transtorno obsessivo-compulsivo: uma revisão sistemática Cognitive behavioral therapy with family intervention for children and adolescents with obsessive-compulsive disorder: a systematic review

O transtorno obsessivo-compulsivo (TOC) é uma doença mental grave, com graves consequências para a dinâmica familiar. Desta forma, o envolvimento dos pais parece ser determinante na resolução dos sintomas desse transtorno. O objetivo deste estudo foi avaliar a qualidade da evidência para a recomendação de terapia cognitivo-comportamental (TCC) com intervenção familiar para crianças e adolescentes com TOC. A busca sistemática foi realizada nas bases de dados MEDLINE/PubMed, seguida da análise de resumos e artigos na íntegra por dois avaliadores independentes. Posteriormente, foi realizada a análise de evidência através do sistema Grading of Recommendations Assessment, Development and Evaluation (GRADE). O tamanho de efeito da intervenção foi calculado através do d de Cohen. Foram localizados 77 artigos no PubMed e mais 12 artigos após busca cruzada de referências. Destes, sete artigos foram incluídos na revisão, segundo os seguintes critérios: ser estudo de intervenção, envolver apenas crianças e/ou adolescentes e possuir diagnóstico clínico ou estruturado de TOC. A escala Children’s Yale-Brown Obsessive Compulsive Scale (CY-BOCS) foi utilizada por todos os artigos para a avaliação de desfecho, permitindo avaliar o tamanho de efeito das intervenções não controladas (d = 1,43), que resultou em uma diferença de médias de cerca 13 pontos (IC95% 11,84-14,39; p < 0,001). Por outro lado, uma alta heterogeneidade foi detectada entre os estudos (I² = 67%). A TCC com intervenção familiar parece ter um efeito importante na redução dos sintomas de TOC na infância e adolescência. No entanto, os poucos estudos disponíveis não nos permitem estabelecer um grau de evidência maior do que C para essa recomendação. Novos ensaios clínicos randomizados são necessários para confirmar essa recomendação.<br>Obsessive-compulsive disorder (OCD) is a severe mental disorder with serious consequences to family dynamics. Therefore, parental involvement seems to be a key factor for the successful treatment of this psychiatric disorder. The aim of this study was to evaluate the level of evidence available to allow recommendation of cognitive behavioral therapy (CBT) with family intervention for the treatment of children and adolescents with OCD. The systematic search was performed on MEDLINE/PubMed, followed by analysis of abstracts and full-length articles by two independent evaluators. Subsequently, an analysis of the evidence available was conducted using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. The effect size of the intervention was calculated using Cohen’s d. We found 77 articles on PubMed, plus 12 articles via cross-reference search. Of these, seven articles were included in this review, according to the following criteria: intervention study, involving only children and/or adolescents, and a having a structured or clinical diagnosis of OCD. The Children’s Yale-Brown Obsessive Compulsive Scale (CY-BOCS) was used for outcome evaluation in all articles, thus enabling assessment of the effect size of non-controlled interventions (d = 1.43), resulting in a mean difference of 13.11 points (95%CI 11.84-14.39; p < 0.001). Conversely, a high heterogeneity was detected among the studies (I² = 67%). Family-based CBT seems to have an important effect on the reduction of OCD symptoms in children and adolescents. However, the small number of studies available do not allow us to establish an evidence level higher than C for this recommendation. New randomized clinical trials are needed to confirm this recommendation