Table 3

 Factors that may help in choosing whether antibiotic prophylaxis will be prescribed when prophylaxis is optional

Arguments for prescription
Age >65 years
Associated conditions
    Cardiac, renal, respiratory, and hepatic insufficiency
    Diabetes mellitus
    Acquired, constitutional or therapeutic (corticosteroids, immunosuppressive agents) immunodepression
Oral or dental condition
    Inadequate oral or especially dental hygiene
Procedure
    Important bleeding (intensity, duration)
    Technically difficult procedure (prolonged procedure)
Patient’s opinion after receiving information
Arguments against prescription
Allergy to several antibiotics
Patient’s opinion after receiving information