The objective of this study was to assess the relation between dental pain, dental caries and socioeconomic status among 12- and 13-year-old schoolchildren enrolled in a public school in Florianópolis, SC, Brazil in 2002. This study was a cross-sectional study involving 181 schoolchildren. Dental pain experience was the dependend variable analyzed. Socioeconomic data of the children's families were obtained through a questionnaire. Dental caries experience was registered according to the DMFT index (WHO, 1997). The field workteam consisted of an examiner and a recorder. The statistical analysis was performed using the chi-square test and the non-conditional multiple logistic regression. The response rate was 93.4%. The intraexaminer agreement measured on a tooth by tooth basis was high (kappa > 0.73). Dental pain prevalence was 33.7% (CI95% 26.0-42.0). The multiple regression analysis, adjusted by sex and other variables, showed that children with DMFT > 1 presented 2.9 (OR CI95% 1.4-6.1, p < 0.01) more chances of having dental pain when compared with those with DMFT < 1. Children whose mother's schooling level was equal or less than 4 years presented 2.5 (OR CI95% 1.2-5.6, p = 0.02) more chances of having dental pain when compared with others whose mothers had more than 5 years of schooling and, finally, children whose family income was up to U$ 67.00 showed 3.2 (OR CI95% 1.2-8.4, p = 0.02) more chances of having dental pain when compared with the ones whose families had higher income. High levels of caries attack, low mother schooling level and low family income were associated to dental pain.

The aim of this study was to assess dental pain prevalence and its association with dental caries and socioeconomic status in 18-year-old males from Florianópolis, Santa Catarina, Brazil. A cross-sectional study was conducted in a random sample (n = 414) selected from the Brazilian Army conscription list in 2003. Dental pain during the 12 months prior to the interview was recorded as the outcome. Socioeconomic data were obtained through a questionnaire. Dental caries experience was registered according to the DMFT Index. Analyses included simple and multiple non-conditional logistic regression following a hierarchical approach. Response rate was 95.6%. High rates of inter-examiner agreement were achieved (kappa > 0.83). Dental pain prevalence was 21.2% (95%CI: 17.3-25.1). After adjustment, individuals with one or more untreated caries were 3.2 times more likely (95%CI: 1.7-5.8) to have dental pain compared to caries-free subjects. Conscripts with low family income were 1.8 times more likely (95%CI: 1.0-3.3) to have dental pain than those with higher income.

RESUMOExistem diferentes propostas para aumento da população negra na universidade. Com o objetivo de investigar o impacto da adoção de algumas propostas na proporção de negros no ensino superior, a partir dos bancos de dados do vestibular e dos matriculados em 2004 na Universidade Federal de Santa Catarina, foi estudada a distribuição étnico-racial na instituição. Verificou-se baixa proporção de estudantes negros candidatos e aprovados no vestibular e matriculados na referida universidade. A duplicação do número de vagas e a reserva de 50% das vagas para egressos de escola pública não alteram esse perfil étnico-racial, indicando que políticas sensíveis à cor têm de ser utilizadas para aumentar a proporção de estudantes negros no ensino superior público e contribuir para a redução de desigualdades raciais no Brasil. Foram simuladas diferentes proporções de reservas de vagas: 15%, 20% e 5% de negros, esta última somente para oriundos de escola pública. Em geral, a redução da nota mínima de ingresso em cursos de diferentes níveis de prestígio social é da ordem de 10% ou menos, não indicando um quadro de expressiva queda da qualidade de ensino.

Estimar a prevalência e gravidade de cárie dentária em escolares de 12 e 13 anos de uma escola estadual de Florianópolis, Santa Catarina, Brasil em 2002 e fazer comparações com os resultados de estudos anteriores, realizados em 1971 e 1997, no mesmo estabelecimento de ensino. Trata-se de um estudo transversal que envolveu 181 escolares. Os dados clínicos foram coletados segundo critérios propostos pela Organização Mundial da Saúde (OMS) ¹. O examinador passou por exercício prévio de calibração. A taxa de resposta foi de 93,8%. A concordância intra-examinador, medida dente a dente, foi alta (Kappa > 0,73). As prevalências de cárie registradas foram de 98%, 93,7% ou 80,0% e 57,4% em 1971, 1997 e 2002, respectivamente. O índice CPO-D médio variou de 9,2 em 1971, 6,2 ou 3,0 em 1997, para 1,4 em 2002, tomando-se ambas as idades em conjunto. O primeiro valor de 1997 segue o critério de Klein & Palmer ² e o segundo, o critério da OMS ³. Entre 1971 e 2002, foi constatada redução real na prevalência e gravidade de cárie na população observada, apesar dos diferentes critérios utilizados para medi-las.

Introduction: Endodontic treatment of teeth with open apex requires a non-conventional approach and the goals new therapies are to allow root's complete development differently from what happens with traditional apexification technique. Objective: This study aimed to review the literature on the most recent regenerative endodontic procedures. Literature review: Regenerative endodontics goal is to obtain pulp vitality. Some case reports on donor-obtained dental stem cells show promising results. Other types of laboratory-based dental stem cell therapies are under development. Conclusion: Dentin-pulp complex shows regenerative capacity, but the literature lacks evidence to validate the regenerative therapies in endodontic practice.

In this study, we evaluated the effectiveness of 1 and 5.25% NaOCl solutions, with or without surfactant, in disinfecting gutta‐percha cones. Surface changes of the gutta‐percha cones after disinfection were also assessed under scanning electron microscopy (SEM). One‐hundred and eight gutta‐percha cones previously contaminated with Enterococcus faecalis were left in contact for 30 s or 1 min with the following solutions (n = 12): 1% NaOCl; 1% NaOCl + 2% cetrimide; 5.25% NaOCl; 5.25% NaOCl + 2% cetrimide. Positive control group was composed by the remaining contaminated cones (n = 12), and the negative control group by noncontaminated cones (n = 12). The cones were kept in Eppendorf tubes containing Trypticase Soy Broth at 37°C for 24 hr, and then, the presence of turbidity was analyzed. Ten additional cones (n = 2) were observed under SEM to evaluate surface changes after 1 min of disinfection. The data analysis (Kruskal–Wallis test, α = 5%) demonstrated that regardless the presence of surfactant, the NaOCl solutions used were effective in the disinfection when cones were immersed for 1 min. However, at the 30‐s period, only the 5.25% NaOCl solution was effective. SEM analysis demonstrated that NaOCl solutions promoted the formation of sodium chloride crystals on cones surface, less visible when the 1% NaOCl associated to surfactant was used. The addition of surfactant did not affect the disinfection capacity of NaOCl solutions. However, the surfactant has apparently inhibited the sodium chloride crystals deposition on the cones surface when associated to 1% NaOCl solution.