ABSTRACT
Introduction: The aim of this study was to evaluate the sealing ability of a new temporary filling material X‑Temp LC (DFL, São Paulo, SP, Brazil) compared with that obtained for Coltosol (Vigodent, Rio de Janeiro, RJ, Brazil) and Vitro Fill (DFL, Rio de Janeiro, RJ, Brazil), using a dye penetration test. Methods: Standard endodontic access cavities were prepared in 75 human premolars. The teeth were divided into five groups (n = 15 for each group), including a positive (no sealing of access cavity) and a negative control (Filtek Z350 XT, 3M, São Paulo, SP, Brazil). In the experimental groups, the access cavities were sealed with one of the three tested materials. After that, the teeth were immersed in 10% Indian ink for 14 days. The teeth were then rinsed, dried, sectioned in bucco‑lingual direction and evaluated under a stereomicroscope using scores for dye penetration. Data were analyzed using Kruskall‑Wallis and Student‑Newman‑Keuls tests (α =0.05). Results: Positive control sections exhibited complete dye penetration and negative control had no specimen showing marginal leakage. X‑Temp LC and Coltosol showed similar results, with no statistical difference between them. Vitro Fill exhibited the highest dye penetration among the experimental groups. Conclusion: The results of this in vitro study suggest that all temporary restorative materials exhibit some degree of marginal leakage. X‑Temp LC and Coltosol, however seal better than Vitro Fill glass ionomer cement.
Subject(s)
Bicuspid/surgery , Dental Bonding , Dental Cements , Dental Leakage/etiology , Endodontics/instrumentation , Endodontics/methods , Humans , Light-Curing of Dental Adhesives/methodsABSTRACT
O presente estudo teve como objetivo realizar um levantamento epidemiológico sobre os casos de fratura coronária em pacientes que foram atendidos no Projeto Trauma Dental da Escola de Odontologia da Unigranrio, no período de 2005 a 2011. O estudo foi baseado nos dados coletados dos prontuários e as informações obtidas estão relacionadas ao gênero, idade, etiologia da fratura, local do pronto atendimento, tempo decorrido até o pronto atendimento, dentes acometidos, situação clínica e a necessidade de tratamento endodôntico. Foi observada uma maior incidência em pacientes do gênero masculino, com a idade mais afetada entre 6 e 10 anos. Os resultados mostram a distribuição etiológica, clínica e demográfica das fraturas coronárias em um projeto de trauma dentário na cidade de Duque de Caxias.
The aim of the present study was to conduct an epidemiological survey on coronal fracture cases in patients treated at the Dental Trauma Project at Unigranrio School of Dentistry, from 2005 to 2011. This study was based on data collected from records and information related to gender, age, fracture cause, prompt service, elapsed time from the accident, affected teeth, clinical condition of the teeth and the need of endodontic treatment. It was observed a higher incidence in male patients, with the most affected age between 6 to 10 years. The results show the etiological, clinical and demographic distribution of coronal fractures in a project of dental trauma in Duque de Caxias city.
Subject(s)
Epidemiology , Tooth Injuries , EndodonticsABSTRACT
O objetivo deste estudo foi avaliar os níveis de infecção de bactérias cariogênicas e estreptococos orais e sua colonização após uso de bochechos com NaF, clorexidina e clorexidina e NaF associados. Associação de clorexidina e NaF foi o único agente que reduziu os níveis de Streptococcus mutans (grupo) por 30 dias.