The addition of 3% TMPnano to 1100 ppm F toothpastes significantly increases the protective effect against enamel erosion in vitro when compared with its counterparts with micrometric TMP or without TMP. This effect was not influenced by the presence of acquired enamel pellicle and saliva.

Objective The objective was to carry out a systematic review on the acceptance of parents to vaccinate their children against COVID‐19 and the factors that contribute for vaccination hesitancy. Methods The Preferred Reporting Items for Systematic Re‐ views and Meta‐Analyses (PRISMA) guidelines and the Patient, Intervention, Comparison and Outcome (PICO) strategy were followed. A search was carried out in the VHL Regional Portal, PubMed, Scielo, Web of Science, Embase and Scopus databases. We included articles that assessed the rate of acceptance and/or hesitation of parents and the factors that affect the decision about vaccination against COVID‐19 for their children in cross‐sectional studies. Laboratory studies, animal models, tests and case reports that elected other aspects related to COVID‐19 were excluded. The methodological quality of the studies was based on the JBI Critical Appraisal Checklist for Studies Reporting Prevalence Data, developed by the Joanna Briggs Institute. Results From the 708 articles found, 237 studies remained after removal of duplicates. Titles and abstracts of these publications were evaluated and, applying the exclusion criteria, 56 articles were selected. Inclusion criteria were employed and 28 studies were eligible. Overall average vaccination acceptance rate was 55.81%, and the main reasons for vaccine hesitancy were uncertainty of vaccine efficacy and safety, concerns about side effects, and lack of access to relevant information. Conclusion The research results can be useful for the development of health education and parental awareness strategies in order to promote greater adherence to vaccination against COVID‐19.

Objective: To evaluate the prevalence and severity of malocclusion and its impact on oral health-related quality of life (OHRQoL) and self-reported satisfaction of patients with anorexia and bulimia nervosa. Methods: The sample consisted of sixty women who attended a specialized mental health clinic of a Brazilian medical school. Participants were distributed into two groups: patients with anorexia and bulimia nervosa (ABN; n=30) and control patients without eating disorders (CN; n=30). The dental occlusion was evaluated by the Dental Aesthetic Index; the OHRQoL was assessed using the OHIP-14 questionnaire; and the self-reported satisfaction with the appearance of teeth, speech ability and chewing was obtained by interviews. Results: Severe and very severe malocclusion were observed in 26.67% and 46.67% of patients in the ABN group, respectively, while the CN group showed 80.00% of patients without abnormality/mild malocclusion. ABN group showed a higher proportion of patients (p < 0.05) with tooth loss, spacing in the region of incisors, maxillary misalignment, and mandibular misalignment in relation to CN group. ABN group presented lower (p< 0.05) OHRQoL and self-reported satisfaction with the appearance of teeth, speech ability and chewing, compared to the CN group. There was a significant positive correlation (p< 0.05) between the Dental Aesthetic Index and OHIP-14 scores in the ABN group. Conclusions: The prevalence of severe malocclusion in ABN group was high, with a negative impact on OHRQoL and self-reported satisfaction with the chewing ability, speech ability and appearance of teeth.

O tratamento das oclusopatias em um sistema de saúde pública requer o levantamento de dados sobre as necessidades ortodônticas de uma determinada população. Dessa forma, diferentes métodos de registro foram desenvolvidos para classificar os problemas de oclusão. O objetivo neste estudo foi investigar a prevalência das oclusopatias e a necessidade normativa de tratamento ortodôntico em jovens de 12 anos de idade. Trata-se de um estudo epidemiológico transversal realizado com 461 escolares da rede de ensino público. Para a avaliação foram realizados exames clínicos utilizando a Classificação de Angle e o Índice de Estética Dentária (DAI). Observou-se que 8,89% apresentavam oclusão normal, 56,83% oclusopatia em Classe I, 24,08% em Classe II e 10.20% em Classe III. Nenhum ou necessidade de tratamento ortodôntico leve foi observado em 47,51%; o tratamento eletivo esteve presente em 20,61%, altamente desejável em 13,45% e obrigatório em 18,44% dos jovens. Dentre os resultados dos exames clínicos para diagnóstico de oclusopatias utilizando a Classificação de Angle foi observado associação com o Índice de Estética Dentária (DAI) (p <0,0001). Dos componentes do DAI, as principais anomalias dentofaciais observadas foram o apinhamento (63,56%), desalinhamento mandibular anterior (62,26%) e overjet maxilar (45,99%). A prevalência das oclusopatias e da necessidade normativa de tratamento ortodôntico foi elevada, sendo que aproximadamente 1/5 com necessidade de tratamento obrigatório. Os índices foram eficazes para a identificação das oclusopatias, entretanto por avaliarem aspectos clínicos distintos, poderiam ser utilizados concomitantemente para aprimorar o diagnóstico das oclusopatias.

Objetivo: Revisar sistematicamente as evidências existentes sobre a prevalência da necessidade de tratamento ortodôntico em jovens de 12 a 15 anos de idade.Métodos: Realizou-se uma busca eletrônica nas bases de dados Portal Regional da BVS, PubMed, Scielo, Cochrane, Web of Science, Embase e Scopus utilizando descritores e termos utilizados nas publicações. Artigos duplicados foram removidos. Após a aplicação dos critérios de exclusão e inclusão, a qualidade dos artigos foi verificada e a extração de dados realizada.Resultados: Dos 2255 estudos encontrados, 1730 foram removidos por duplicidade, 487 artigos foram eliminados segundo os critérios de exclusão e 11 estudos foram eleitos de acordo com os critérios de inclusão.Conclusão: A prevalência da necessidade de tratamento ortodôntico foi considerada alta em diferentes regiões do mundo, principalmente na população brasileira, japonesa e africana. Recomenda-se fortemente a intensificação da educação em saúde bucal em adolescentes, com o propósito de conscientizá-los sobre a importância da prevenção das oclusopatias e a busca por assistência periódica para evitar a necessidade de tratamentos dispendiosos no futuro. Destaca-se também, que é essencial a avaliação criteriosa da qualidade dos estudos epidemiológicos para compreender a real necessidade de tratamento da população-alvo e a implantação de políticas públicas em saúde eficazes.

Objective: This study evaluated the in vitro bond strength of Class I restorations to dentin, using four restorative systems. Materials and Methods: Ninety-six molars were used, and a Class I cavity was prepared on the occlusal surface. Next, tooth were divided into 4 groups (n=24), Single Bond Universal + Filtek Z350 XT (SFZ); Single Bond Universal + Filtek Bulk Fill (SFB); AdheSE + Tetric N-Ceram (ATC) and AdheSE + Tetric N-Ceram Bulk Fill (ATB).Thus, the teeth were divided into 3 subgroups (n = 8): 1) storage in water  for 24h (control); 2) submitted to thermocycling; 3) mechanical loading. After challenges, teeth were cut into beams 0.8mm², being 3 to 4 sticks per tooth. Then, the specimens were submitted to microtensile testing (μTBS). The data were submitted to Kruskal Wallis and Dunn tests for multiple comparisons, with a significance level of 5%. Results: No significant differences were observed between the restorative systems after thermal cycling challenge (p> 0.05). 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