How serious is a bacterial endocarditis after dental work?

Very: Infective endocarditis is always a very serious illness. It requires lengthy treatment with one or more antibiotics, may require surgery, and complications are numerous. A good infectious diseases expert can manage these, minimizing morbidity and mortality.

Very: Take your antibiotics before certain dental procedures to help prevent sbe.

Bacterial endocardit: Bacterial endocarditis is extremely serious no matter the context. Or are you referring to bacterial endocarditis prophylaxis prior to dental procedures?