Sea slugs (Gastropoda: Heterobranchia) from Rio Grande do Norte, Northeastern Brazil

Heterobranch sea slugs (Gastropoda) present reduction, internalization, or absence of shell, and include more than 6,000 described species. Approximately 250 species are recorded from Brazil but only 14 had been previously recorded from Rio Grande do Norte, on the Brazilian northeastern coast. As a result of different expeditions conducted between 2008 and 2020, species were collected and identified. Among them, five species were recorded for the first time from the South Atlantic Ocean: Chelidonura hirundinina (Quoy & Gaimard, 1833); Sclerodoris prea (Ev. Marcus & Er. Marcus, 1967); Thuridilla malaquita Ortea & Buske, 2014; Berthella nebula Ghanimi, Schrödl, Goddard, Ballesteros, Gosliner & Valdés, 2020 and Berthella vialactea Ghanimi, Schrödl, Goddard, Ballesteros, Gosliner & Valdés, 2020. Thirty-six species are recorded for the first time from Rio Grande do Norte. The present survey expands the knowledge of the diversity of sea slugs from Brazil and supports the hypothesis of similarity between the heterobranch sea slug fauna from the northeastern Brazil and the Caribbean Sea

CONHECIMENTOS ATITUDES E PRÁTICAS SOBRE A PREVENÇÃO DA COVID-19 EM IDOSOS COM DOENÇA DE PARKINSON E FATORES ASSOCIADOS

Pacientes acometidos por doenças crônicas, como a doença de Parkinson (DP), apresentam um maior risco de complicações durante a progressão da COVID-19. Os cuidados preventivos são um resultado dos conhecimentos, das atitudes e das práticas que os indivíduos têm em relação às orientações de prevenção para o controle da COVID-19. Objetivo: Analisar os conhecimentos, atitudes e práticas sobre a prevenção da COVID-19 em idosos com DP e fatores associados. Métodos: Este estudo seccional incluiu pacientes de ambos os sexos com idade ≥60 anos acompanhados por um programa de assistência multiprofissional para a DP de uma universidade pública no nordeste do Brasil. Foram excluídos aqueles com indicativo de comprometimento cognitivo verificado através do instrumento de triagem cognitiva da 3ª edição da caderneta de saúde da pessoa do Brasil. Os dados foram compilados e expressos por meio de estatística descritiva. O programa de análise foi o StatisticaStatSoft 12, considerando p<0.05. Resultados: Da amostra composta por 39 idosos com DP, 76.9% apresentou conhecimentos, atitudes e práticas inadequados. O comportamento sobre a prevenção da COVID-19 apresentou associação com a variável “município” (p=0.039). Conclusão: Conhecimentos, atitudes e práticas sobre a prevenção da COVID-19 nos idosos comunitários com DP foram predominantemente inadequados. O fator associado à prevenção inadequada foi residir fora do município de Recife que se destacou como variável associada ao CAP prevenção.  

Caminhos para a comercialização solidária: A Cooperativa Cooperxique no Estado do Rio Grande do Norte (RN) – Brasil/ Paths for solidary marketing: The Cooperxique Cooperative in the State of Rio Grande do Norte (RN) - Brazil

As criações de cooperativas reafirmam a possibilidade de inserção dos indivíduos, novamente, no mercado, mediante a realização de princípios coletivos, organizando o seu funcionamento em uma economia solidária. O objetivo deste artigo foi identificar a contribuição da Cooperativa Cooperxique, da Rede Xique Xique de Comercialização Solidária para dinamização da economia solidária, junto aos cooperados, em Mossoró (RN). Foi realizada uma pesquisa bibliográfica e documental em banco de dados da Cooperxique, em seguida foram aplicados 13 (treze) questionários, junto aos coordenadores e cooperados da cooperativa. Contatou-se que, após a fundação da Cooperxique os (as) agricultores (as) puderam comercializar seus produtos, advindos da agricultura familiar, contribuindo para a geração de renda e dinamização da economia solidária. A Cooperxique favorece a comercialização direta em feiras e o acesso ao mercado institucional, por conseguinte, ela auxilia na geração de renda e potencializa meios de comercialização para os pequenos produtores rurais, contribuindo para o desenvolvimento territorial sustentável

Atividade antibacteriana de sistemas adesivos dentinários autocondicionantes sobre bactérias cariogênicas

A incorporação de agentes antibacterianos aos sistemas adesivos dentinários autocondicionantes tem sido proposta com o intuito de eliminar bactérias residuais presentes na dentina, prevenindo, assim, a recorrência de cárie. O presente trabalho teve como objetivo avaliar a atividade antibacteriana dos sistemas adesivos dentinários autocondicionantes: Clearfil Protect Bond (CPB), Clearfil SE Bond (CSEB), Xeno III (XIII) e Clearfil Tri-S Bond (C3SB), com e sem fotoativação, sobre bactérias cariogênicas, bem como a influência da dentina humana na atividade antibacteriana destes sistemas adesivos, utilizando o método de difusão em ágar. A solução de digluconato de clorexidina a 0,2% foi utilizada como controle positivo. O componente adesivo do CPB e do CSEB, o líquido A do XIII e o C3SB não apresentaram atividade antibacteriana quando aplicados sobre discos de papel. O conjunto primer e adesivo do CPB não fotoativado promoveu a maior inibição contra S. mutans (p0.05). When the materials were applied onto dentin discs, only CHX presented inhibitory activity, which was less intense than when it was applied onto paper discs (p<0.05). CHX showed stronger antibacterial activity against S. mutans than against L. acidophillus (p<0.05). In conclusion, light-activation significantly reduced the antibacterial activity, the presence of MDPB in adhesive systems is important to the inhibitory effect against cariogênico 20 bacteria, and the dentin acted as a protection barrier reducing or inhibiting the antibacterial activity of dental materials.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

Evaluation of 2 endodontic techniques used to treat human primary molars with furcation radiolucency area: A 48-month radiographic study

Objective: To evaluate 2 techniques for the treatment of human primary molars with necrotic Pulp and bifurcation bone loss by means of radiographic examination for 48 months. Method and Materials: Fifty-one mandibular primary molars were evaluated in children ranging from 4.5 to 6.5 years of age. The teeth with necrotic pulp and bifurcation bone loss were diagnosed by radiographic examination. The teeth were divided into 2 groups: group 1 (28 teeth)-pulpotomy technique using formocresol as a temporary dressing between sessions and coronal chamber obturation with zinc oxide-eugenol cement; and group 2 (23 teeth)-pulpectomy technique with calcium hydroxide paste as a temporary dressing between sessions and root canal obturation with a dense Calcium hydroxide paste. Standardized radiographs were taken immediately after the fillings were completed and after 12, 24, 36, and 48 months. The radiographs were digitized and analyzed with software that outlined and measured the bifurcation radiolucency. Results: Bifurcation radiolucency reduced significantly or repaired completely for both treatnients in the first 12 months. Minor radiographic reduction of the lesion was observed from 12 to 24 months, and no significant reduction of the remaining radioulcent area was observed from 24 to 48 months after treatment. Conclusion: The 2 endodontic techniques evaluated showed similar results. The main effect of treatment on the lesion repair was obtained in the first year after treatment

Response of human dental pulp to calcium hydroxide paste preceded by a corticosteroid/antibiotic dressing agent

Aim: To evaluate the treatment with corticosteroid/antibiotic dressing in pulpotomy with calcium hydroxide. Methods: Forty-six premolars were pulpotomized and randomly assigned into 3 groups. In Group I pulpal wound was directly capped with calcium hydroxide, and Group II and Group III received corticosteroid/antibiotic dressing for 10 min or 48 h, respectively, before pulp capping. Teeth were processed for histological analysis after 7, 30 or 60 days to determine inflammatory cell response, tissue disorganization, dentin bridge formation and presence of bacteria. Attributed scores were analyzed by Kruskal-Wallis and Mann-Whitney tests (α=0.05). Results: On the 7th day, all groups exhibited dilated and congested blood vessels in the tissue adjacent to pulpal wound. The inflammatory cell response was significantly greater in Group III (p<0.05). On the 30th day, in all groups, a thin dentin matrix layer was deposited adjacent to the pulpal wound and a continuous odontoblast-like cell layer underlying the dentin matrix was observed. On the 60th day, all groups presented a thick hard barrier characterized by an outer zone of dystrophic calcification and an inner zone of tubular dentin matrix underlined by a defined odontoblast-like cell layer. Conclusions: Within the limitations of present study, considering that the treatment was performed in healthy teeth, it may be concluded that the use of a corticosteroid/antibiotic dressing before remaining tissue protection with calcium hydroxide had no influence on pulp tissue healing

Minimizing fear during dental treatment using ultrasonic points

Over the last few years, new technologies have been developed to making cavity preparations, among which the diamond burs CVDentus® (CVDentus, São José dos Campos, Brazil) are outstanding. These points are produced by chemical deposition from the vapor phase, forming a single diamond stone, with greater durability than the conventional diamond burs. Coupled to the ultrasound appliance, they have several clinical applications in Dentistry with advantages over conventional rotary instruments, such as lower pressure, noise, vibration and heat, as well as reducing the need to use local anesthesia, contributing to minimize patient’s fear and anxiety. The aim of this study was to present the complete restorative dental treatment performed with this system in a child patient with a prior history of non-cooperative behavior. The use of this new technology offered the patient greater comfort, making it possible recondition the patient’s attitude to dental treatment, in addition to favoring conservative cavity preparations to be made

Response of human dental pulp to calcium hydroxide paste preceded by a corticosteroid/antibiotic dressing agent

evaluate the treatment with corticosteroid/antibiotic dressing in pulpotomy with calcium hydroxide. Methods: Forty-six premolars were pulpotomized and randomly assigned into 3 groups. In Group I pulpal wound was directly capped with calcium hydroxide, and Group II and Group III received corticosteroid/antibiotic dressing for 10 min or 48 h, respectively, before pulp capping. Teeth were processed for histological analysis after 7, 30 or 60 days to determine inflammatory cell response, tissue disorganization, dentin bridge formation and presence of bacteria. Attributed scores were analyzed by Kruskal-Wallis and Mann-Whitney tests (á=0.05). Results: On the 7th day, all groups exhibited dilated and congested blood vessels in the tissue adjacent to pulpal wound. The inflammatory cell response was significantly greater in Group III (p<0.05). On the 30th day, in all groups, a thin dentin matrix layer was deposited adjacent to the pulpal wound and a continuous odontoblast-like cell layer underlying the dentin matrix was observed. On the 60th day, all groups presented a thick hard barrier characterized by an outer zone of dystrophic calcification and an inner zone of tubular dentin matrix underlined by a defined odontoblast-like cell layer. Conclusions: Within the limitations of present study, considering that the treatment was performed in healthy teeth, it may be concluded that the use of a corticosteroid/antibiotic dressing before remaining tissue protection with calcium hydroxide had no influence on pulp tissue healing