Nosocomial infections significantly contribute to a patient’s morbidity and mortality, increasing healthcare costs. While previous research has assessed the effect of oral hygiene on the prevention of nosocomial infections and postoperative complications, few guidelines exist that offer evidence-based recommendations on pre- or peri-operative oral hygiene in the surgical setting. The Philippine Surgical Infection Society set out to develop a set of guidelines that provide evidencebased recommendations on oral hygiene for improving surgical outcomes for adoption in the Philippines. Six clinical questions defined the scope of the guidelines. A systematic review was performed to provide the evidence base to develop the recommendations. A consensus meeting participated by 15 representatives from 13 specialty surgical societies and societies concerned with infection control was conducted using the modified Delphi technique to finalize the set of recommendations. A consensus guideline with sixteen recommendations on the use of oral hygiene to improve surgical outcomes is presented for adoption and implementation.