Influence of different photoinitiators on the resistance of union in bovine dentin : experimental and microscopic study

To evaluate in vitro the influence of photoinitiators on the microtensile strength of adhesive systems and composite resins in bovine dentin. Forty dentin obtained from bovine teeth were randomly distributed in four groups (n = 10) according to the dif

Ensino da cariologia para estudantes de graduação em odontologia no Brasil

This study sought to provide an overview of current cariology education for undergraduate Brazilian dental students. Data collection was via a Portuguese version of a 12-item questionnaire (Schulte et al., 2011) that was sent to all Brazilian dental schools (n = 219). The response rate was 57.0% (n = 125). Of the schools that returned the questionnaire, 84.8% supported the development of a Brazilian cariology curriculum. The units responsible for teaching cariology were predominantly operative dentistry (49.6%), pediatric dentistry (49.6%), dental public health (44.8%), and cariology (32%). Theoretical teaching of cariology (74.4%) and pre-clinical exercises (63.2%) were cited to occur mainly during the second year of the course, while clinical activities were placed in the third (71.2%) and fourth (64.8%) years. Among respondents, 76.8% of the schools included dental erosion and 86.4% included defects of dental hard tissues, such as abrasion, in teaching cariology. This survey was able to determine the panorama of cariology education in Brazil and to detect some differences among Brazilian geographic areas. The promotion of a workshop to discuss the topics that should be taught to undergraduate dental students and the development of a Brazilian core curriculum in cariology would be likely to reduce the differences in teaching cariology in Brazil.Este estudo teve como objetivo apresentar um panorama do ensino de cariologia nos cursos de graduação em Odontologia no Brasil. A coleta de dados foi realizada por meio de uma versão em Português Brasileiro de um questionário de 12 itens (Schulte et al., 2011) que foi enviado a todas as faculdades de Odontologia brasileiras (n = 219). A taxa de resposta foi de 57,0% (n = 125). Dentre as faculdades que responderam o questionário, 84,8% apoiam o desenvolvimento de um currículo brasileiro de cariologia. As disciplinas responsáveis por lecionar os conteúdos de cariologia são principalmente dentística (49,6%), odontopediatria (49,6%), saúde bucal coletiva (44,8%), e cariologia (32%). O ensino teórico de cariologia (74,4%) e os exercícios de pré-clínica (63,2%) são abordados principalmente durante o segundo ano do curso, enquanto as atividades clínicas ocorrem, em geral, no terceiro (71,2%) e quarto (64,8%) anos. Dentre os respondentes, 76,8% das faculdades incluem erosão dentária e 86,4% incluem defeitos dos tecidos dentários duros, como abrasão, no ensino da cariologia. Essa pesquisa foi capaz de determinar o panorama do ensino da cariologia no Brasil e detectar algumas diferenças de currículo entre as regiões do país. A promoção de um workshop para discutir os assuntos que devem ser ministrados aos estudantes de graduação em Odontologia e para desenvolver um currículo brasileiro de cariologia seria válida para reduzir as diferenças no ensino de cariologia no Brasil

Legislation in Hospital Dentistry: Gaps, Perspectives and Desires

Objective: To analyze the existing state legislation, including not only the ordinary laws, but also their infralegal regulation and the state legislation on Hospital Dentistry. Material and Methods: A survey was carried out in the databases of the Legislative Assemblies of the Brazilian States and the Federal District, as well as the Regional and Federal Councils of Dentistry in Brazil. Subsequently, a survey was carried out in the databases of the Ministry of Health, State Dental Councils and Federal Dental Council in Brazil. Results: Only 8 Brazilian states have legislation in force regarding hospital dentistry, which represents 29.63% of the federative units. Among the Brazilian regions, the Midwest presented the highest prevalence of the laws found (37.50%), followed by the North (25%) and the other regions with the same coverage (12.50%). Also, an orientation and an ordinance from the Ministry of Health, six resolutions from the Federal Council of Dentistry, and a technical note from the National Health Surveillance Agency were found. Conclusion: Several States do not have rules on the subject, making it imperative to create a federal rule that not only imposes the presence of the dentist, but also regulates the proportion of the team, workload, and availability

Evaluation of caries risk in pre-school children using the CAMBRA protocol and CAST index / Avaliação do risco de cárie em crianças em idade pré-escolar utilizando o protocolo CAMBRA e o índice CAST

Objective: To evaluate the risk of caries and oral health condition in children, using the CAMBRA protocol of the American Academy of Pediatric Dentistry (AAPD) and the Species and Treatment Index for Caries Assessment (CAST) in preschoolers. Method: Method: It is characterized as a cross-sectional retrospective observational analytical study, with clinical examination procedures, questionnaires and oral hygiene analysis in children from 2 to 5 years old. 507 preschoolers aged 2 to 5 years were evaluated in public daycare centers in the city of São Gonçalo - Brazil. Results: The CAMBRA protocol has a moderate risk of 55.4%, while 44.6% has a high risk of caries, from 2 to 5 years. When considering the range of 2 to 3 years apart, 67.1% of children are at high risk. The CAST index showed 10.6% of lesions caused by caries, correlated between caries and the CAST index. Conclusion: It is necessary to implement preventive strategies to reduce caries in this studied group

Comparison between dmf/DMF and ICDAS in Brazilian schoolchildren: a cross-sectional study / Comparação entre ceo/CPO e ICDAS em escolares brasileiros: um estudo transversal

The objective was to compare the use of the International Caries Detection and Assessment System (ICDAS-II) and the dmft/DMFT (WHO) indexes in epidemiological surveys in schools. Two calibrated examiners analyzed 402 public school children aged 5-12 years, in the city of Mesquita, Rio de Janeiro, Brazil, using ICDAS-II and WHO criteria. The schools are located in areas covered by the Family Health Strategy. The DMF-DMF-S, dmf-t, dmf-s, the prevalence of decayed teeth, and examination time were calculated using both systems. The research subjects participated in health education and prevention activities and oral hygiene training. Data were statistically analyzed and the mean dmf-t / DMF-T was 2.35 (sd ± 2.15) and 3.18 (sd ± 2.31), respectively, using the WHO criteria. When considering the score of the three-ICDASII the average was 2.64 (sd ± 1.89) and 3.45 (sd ± 2.48). With the score-2 ICDASII, 4386 surfaces with lesions were identified, 2795 (63.7%) were not considered when we used the dmf-t / DMF-T. The average examination time was almost twice as long to ICDAS-II (3.2 ± 1.9 min) and WHO (1.8 ± 0.9 min). Conclusion: The ICDAS-II, and provide information on non-cavitated lesions of caries, shows significant experience of dental caries in schoolchildren from the city, and can generate data comparable with previous research that used the WHO criteria

Do commercial whitening dentifrices increase enamel erosive tooth wear?

Objective: This in vitro study evaluated the effect of commercial whitening dentifrices on erosive tooth wear (ETW) of bovine enamel samples, in comparison with commercial regular dentifrices. Methodology: Sixty bovine crowns were embedded in acrylic resin, polished and then had their baseline profile determined. They were randomly assigned to 5 groups (n=12/group), according to the type of commercial dentifrice to be tested: GI – Crest Anti-cavity Regular; GII – Crest 3D White; GIII – Colgate Total 12 Clean Mint; GIV – Colgate Optic White; GV – Placebo (negative control, fluoride-free dentifrice). The samples were submitted to daily erosive and abrasive challenges for 3 days. The erosive challenges were performed 3 times a day by immersing the specimens in 0.1% citric acid solution (pH 2.5) for 90 s. Each day after the first and last erosive challenges, the specimens were subjected to the abrasive challenge for 15 s, using a toothbrushing machine (Biopdi, São Carlos, SP, Brazil), soft toothbrushes and slurry (1:3 g/ml) of the tested toothpastes (1.5 N). The specimens were kept in artificial saliva between the challenges. The final profile was obtained and the ETW (µm) was calculated. Data were analyzed by Kruskal-Wallis and Dunn’s tests (p<0.05). Results: All dentifrices tested significantly reduced the enamel wear in comparison with the Placebo, except GIII. The median (95% CI) ETW was 1.35 (1.25-1.46)bc for GI, 1.17 (1.01-1.34)cd for GII, 1.36 (1.28-1.45)ab for GIII, 1.08 (1.04-1.14)d for GIV and 2.28 (2.18-2.39)a for GV. Conclusion: When dentifrices from the same manufacturer were compared, the whitening dentifrices led to similar or less wear than the regular ones

Use of the web in promoting education in oral health among schoolchildren / Uso da web na promoção de educação em saúde bucal em escolares

This study aimed to evaluate the acceptance and acquisition of knowledge through web learning related to self-care for the maintenance of oral health. The study population was children from the 4th and 5th school year, from 9 to 16 years old. It was evaluated Visible Plaque Index and Gingival Bleeding Index. Participants’ knowledge was tested at baseline and then evaluated after each web distance education moment. This education process had four web distance moments. The evaluation of knowledge was done through a questionnaire containing 10 closed questions. The time interval was 30 days between the 1st and 2nd meetings and 60 days between the subsequent meeting. Concerning the questionnaires, the different moments were compared by chi-square (X2). Only question number six presented a statistical significance at 5%, however, between the first and the second moment 100% of the questions had a significant increase of correct answers (p> 5%). It is concluded that oral health education by web, was able to improve oral hygiene and knowledge related to oral health.

Seven years of external control of fluoride levels in the public water supply in Bauru, São Paulo, Brazil

Fluoridation of the public water supplies is recognized as among the top ten public health achievements of the twentieth century. However, the positive aspects of this measure depend on the maintenance of fluoride concentrations within adequate levels. To report the results of seven years of external control of the fluoride (F) concentrations in the public water supply in Bauru, SP, Brazil in an attempt to verify, on the basis of risk/benefit balance, whether the levels are appropriate. From March 2004 to February 2011, 60 samples were collected every month from the 19 supply sectors of the city, totaling 4,641 samples. F concentrations in water samples were determined in duplicate, using an ion-specific electrode (Orion 9609) coupled to a potentiometer after buffering with TISAB II. After the analysis, the samples were classified according to the best risk-benefit adjustment. Means (±standard deviation) of F concentrations ranged between 0.73±0.06 and 0.81±0.10 mg/L for the different sectors during the seven years. The individual values ranged between 0.03 and 2.63 mg/L. The percentages of the samples considered “low risk” for dental fluorosis development and of “maximum benefit” for dental caries prevention (0.55-0.84 mg F/L) in the first, second, third, fourth, fifth, sixth, and seventh years of the study were 82.0, 58.5, 37.4, 61.0, 89.9, 77.3, and 72.4%, respectively, and 69.0% for the entire period. Fluctuations of F levels were found in the public water supply in Bauru during the seven years of evaluation. These results suggest that external monitoring of water fluoridation by an independent assessor should be implemented in cities where there is adjusted fluoridation. This measure should be continued in order to verify that fluoride levels are suitable and, if not, to provide support for the appropriate adjustmentsCNPq 403427/2004-5CNPq 403427/2004

Alma Ata: Reflections and future prospects in family health strategy

ABSTRACT The International Conference on Primary Health Care, held in Alma Ata, was one of the most significant public health events in the world, where for the first time the dependency between poverty and health status was discussed and measured. Even after 40 years of its implementation, it continues to influence directly public policies related to the principles of primary care. The aim of the present study was to carry out a review of literature based on PubMed / Medline, Virtual Health Library (BVS / Bireme / WHO-PAHO) and institutional documents of Brazilian Ministry of Health, in order to point out reflections of perceptions about Alma Ata Conference, in Brazilian public policies, tracing an evolutionary profile to the family health strategy and its future perspectives. Although the study found a strong influence of the Alma Ata Conference in Brazilian public health policies it still needs improvement to reach the global goals and objectives agreed by all countries in Alma Ata and reaffirmed in the World Health Organization’s 2030 Sustainability Agenda