I just read on the BBC news website: http://www.bbc.co.uk/news/health-30103273 that the incidence of infective endocarditis cases has risen significantly since NICE said to stop giving antibiotics to prevent infective endocarditis in patients due to undergo invasive dental procedures. NICE are going to look at this again. Here's a report from the Lancet: http://www.thelancet.com/journals/la...007-9/fulltext I think I'll insist on antibiotics if I have to have dental work.