No abstract

The apical third of the root canals was not cleaned as well as the middle and coronal thirds. Cleaning by chlorhexidine and saline was inferior compared to the cleaning by sodium hypochlorite with and without EDTA.

No abstract

No abstract

rosaNa modesto da CuNha BusCh Cirurgiã dentista, especialista em Periodontia, trabalha na Prefeitura Municipal de Bauru na unidade CEO (Centro de Especialidades Odontológicas-Bauru) na especialidade de Periodontia. sara Nader marta Professora doutora do Curso de odoNtologia da uNiversidade sagrado Coração-Bauru resumo A síndrome de Down (SD) é uma anomalia cromossômica. O indivíduo com esta síndrome apresenta alterações no sistema estomatognático: dentes, língua, periodonto, maxila, palato, mandíbula, oclusão e articulação temporomandibular. Há manifestações bucais, como respiração bucal, má oclusão, língua hipotônica, agenesias dentárias, doença periodontal, irrompimento dentário retardado, alterações de estrutura dentária e outras. objetivo: o objetivo deste trabalho foi realizar um levantamento dos tratamentos realizados em diferentes especialidades nos pacientes com SD atendidos no Centro de Especialidades Odontológicas (CEO-Bauru). Material e Métodos: realizou-se um levantamento por meio de documentação indireta dos usuários do CEO-Bauru, da Prefeitura Municipal de Bauru, autorizado pelo Comitê de Ética da Universidade do Sagrado Coração de Bauru (nº. 205/11). Foram selecionados 43 prontuários de pacientes atendidos no período de fevereiro de 2007 a janeiro de 2013. resultados: os pacientes foram encaminhados ao CEO pelas Unidades Básicas de Saúde:

The objective of the present study was to determine, by scanning electron microscopy, the aspect of root canal walls after utilization of different rotary instrumentation systems for root canal preparation. Forty-two single-rooted and straight teeth were divided into six groups, whose root canals were prepared using the following rotary systems: groups 1 and 2 - Quantec; groups 3 and 4 - Pow-R; groups 5 and 6 - Profile. Irrigation was performed with 2.5% sodium hypochlorite solution in all groups, while only groups 2, 4 and 6 received a final flush with EDTA. Data were analyzed by non-parametric Kruskal-Wallis and Miller tests. Removal of the smear layer and other debris was more effective in the groups receiving EDTA as final irrigant. The Profile system showed the best cleaning, generating only a minimum smear layer, with a significant difference being observed compared to the Pow-R system (p<0.05), but no difference when compared with Quantec system. The final use of EDTA favored cleaner surfaces in all groups.

No abstract

The aim of this study was to evaluate the antimicrobial effect of biomechanical preparation using different irrigating solutions. Seventy-eight root canals from premolars of four dogs were used. After experimental induction of periapical lesions, the root canals were prepared using the following solutions for irrigation: Group 1) 2.5% sodium hypochlorite (NaOCl); Group 2) 2% chlorhexidine (CHX); Group 3) saline solution and Group 4) control group with no biomechanical preparation. The microbiological evaluation of the root canals was performed by counting the colony forming units (CFUs) using different culture mediums. Two absorbent paper cones were used in each root canal in order to collect the microbiological samples before, and thirty days after the biomechanical preparation. The culture plates were incubated in aerobic, anaerobic and microaerophilic environment. Statistical evaluation was carried out using analysis of variance, Tukey and Student tests. The results demonstrated that there was reduction in the number of microorganisms in the NaOCl and CHX groups (p<0.05). There was greater effectiveness in the chlorhexidine group. The group that used saline solution and the control group presented an increased number of microorganisms. It can be concluded that the use of antimicrobial irrigating solutions during biomechanical preparation promotes the reduction of endodontic microbiota. However, a considerable number of microorganisms were still observed.