Objectives To evaluate the microbial contamination of pacifiers by Mutans Streptococci (MS) and the efficacy of different methods for their disinfection.Methods Twenty-eight children were assigned to a 4-stage changeover system with a 1-week interval. In each stage, children received a new pacifier and the parents were instructed to maintain their normal habits for 1 week. After this time, the pacifiers were subjected to the following 4 disinfection methods: spraying with 0.12% chlorhexidine solution, Brushtox® or sterile tap water, and immersion in boiling tap water for 15 minutes. Microbiological culture for MS and Scanning Electron Microscopy (SEM) were performed. The results were analyzed statistically by Friedman’s non-parametric test (a=0.05).Results The 0.12% chlorhexidine spray was statistically similar to the boiling water (p>0.05) and more effective than the Brushtox® spray and control (p<0.05). The analysis of SEM showed the formation of a cariogenic biofilm in all groups with positive culture.Conclusions Pacifiers become contaminated by MS after their use by children and should be disinfected routinely. Spraying with a 0.12% chlorhexidine solution and immersion in boiling water promoted better disinfection of the pacifiers compared with a commercial antiseptic toothbrush cleanser (Brushtox®).
Objective: There is a lack of high-quality evidence on the efficacy of the non-instrumentation endodontic treatment (NIET) in primary molars, compared to the conventional endodontic treatment technique. This protocol describes a multicenter randomized clinical trial that aims to evaluate the efficacy of a NIET technique for primary molars using a paste containing antibiotics (chloramphenicol and tetracycline – CTZ group) compared to a control group of conventional technique and root filling with zinc oxide eugenol (ZOE). Methodology: Children aged 3 to 9 years (N=218) will be randomly allocated to one of the groups: CTZ or ZOE. In CTZ, after the location of root canals entrance, irrigation will be performed using 1% sodium hypochlorite and CTZ paste will be placed over the root canal entrances, with no instrumentation of the root canals. In ZOE group, manual instrumentation of root canals with endodontic K-files will be performed, and then, the root canals will be filled with ZOE paste. At the same appointment, teeth will be restored with a double-seal of glass ionomer and a bulk fill resin composite. Children will be followed-up for 6, 12, 18 and 24 months. The primary endpoint will be the success of endodontic treatments evaluated by clinical and radiographic criteria after 24 months. Conclusions: NIET with CTZ paste could be an option to manage primary teeth, once the technique could have non-inferior efficacy to the conventional technique that involves root canal instrumentation. The approach could have good acceptance from children and parents considering the reduced clinical time.
Introdução: A pigmentação verde dos dentes é rara, mas causamuita ansiedade para a criança e seus familiares. Ela resulta deuma reação dos dentes em desenvolvimento, ao suprimentosanguíneo rico em bilirrubina. A intensidade e a extensão dapigmentação variam com os níveis de bilirrubina sérica e a fase daodontogênese, o que é comprovado pelo acometimento seletivo dealguns dentes e pela ausência de pigmentação nos dentes definitivos.Objetivo: Relatar um caso de pré-escolar portadora de dentesdecíduos com pigmentação verde.Método: Revisão de prontuários médico e odontológico.Relato de caso: Criança do sexo feminino, dois anos de idade,leucoderma, admitida em serviço de Odontopediatria para avaliaçãoda coloração verde de seus dentes. Ao exame clínico, observou-secoloração verde em todos os elementos dentários decíduos, sendoesta mais acentuada nos incisivos superiores e inferiores, estandodistribuída com variação em grau de acometimento e extensão, deacordo com a cronologia da odontogênese. Os tecidos molesapresentavam-se íntegros e com coloração normal. A criança nasceuprematura evoluindo com sepsis, severa hiperbilirrubinemia,policitemia e permanência prolongada em unidade de terapiaintensiva neonatal.Conclusão: A pigmentação verde dos dentes é uma entidadeincomum exigindo conduta terapêutica individualizada e oreconhecimento da etiologia, que na maior parte dos casos remontaa severos episódios de hiperbilirrubinemia no período neonatalcausados por sepsis, incompatibilidade sanguínea ou atresia devias biliares. A policitemia como possível fator coadjuvante é pelaprimeira vez relatada.
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