Aquí hay un tutorial de como buscar en PubMed, un poco largo pero muy claro en su explicación. Ojalá sirva para complementar lo que ya sabían o para aprender para los que no sabíamos nada de como usarlo.
Department of Orthodontics, Catholic University Leuven, Leuven, Belgium.
AIM: To compare undisturbed plaque formation on teeth bonded with diffeent types of orthodontic brackets with non-bonded control teeth, via a de novo plaque growth experiment over a 7-day period. MATERIAL AND METHODS: A randomized controlled trial with split-mouth design was set up enroling 16 dental students. Within each subject sites with Speed(S) and GAC(G), brackets and control sites were followed. Clinical periodontal parameters were recorded at baseline, on days 3 and 7. Microbiological samples were taken from the brackets and the teeth on days 3 and 7. RESULTS: Both anaerobe and aerobe colony-forming units (CFU) were significantly higher in S-sites than in G-sites (p=0.0002, p=0.02). The shift from aerobic to anaerobic species was observed earlier in S-sites than in G-sites. The aerobe/anaerobe CFU ratio was significantly lower in S-sites than in G-sites (p=0.01). On day 3, the crevicular fluid flow was significantly higher in S-sites than in control sites (p=0.01). On day 7, S-sites and G-sites showed a significantly higher crevicular flow than control sites (both p<0.0001). More hypertrophy was seen in S- than in G- and control sites (p=0.05). No significant differences for bleeding on probing were observed. CONCLUSION: Bracket design can have a significant impact on bacterial load and on periodontal parameters.
Aquí les dejo mi seminario. Para hacerlo más didáctico y probar el sistema, respondí las preguntas en Power Point, lo subí a slide share y lo incrusté en la edición HTML. Ojalá funcione y les guste.
HOLA muchachos este es el link para encontrar las preguntas del seminario 1 de busqueda bibliografica los invito a participar http://seminariobusqueda.blogspot.com/