Good oral hygiene, regular visits to the dentist, and limiting the intake of sugar and yeast-containing foods are some ways to prevent oral yeast infections, explains Mayo Clinic. Controlling blood sugar, which decreases the amount of sugar in saliva, is an important preventive measure for people with diabetes. Prompt treatment of vaginal yeast infections during the last three months of pregnancy helps prevent oral fungal infections in newborns, who sometimes contract the infection in the birth canal, states WebMD.
Breastfeeding is another way to prevent oral fungal infections in newborns because breast milk contains antibodies from the mother that enhance the baby's natural immunity. Washing or boiling all bottle nipples and pacifiers daily and keeping used bottles in the refrigerator also helps prevent oral infections, explains WebMD.
Thrush, or oral candidiasis, is the medical term for an oral infection caused by the fungus Candida albicans. It is more common in infants, the elderly, diabetics and individuals with compromised immune systems, such as people with HIV or cancer, Mayo Clinic explains. People who are taking antibiotics are also at greater risk because antibiotics destroy some of the body's "good" bacteria, which help keep "bad" organisms, such as fungi, under control, states Healthline. Some people eat yogurt, which contains live bacterial cultures, to help replenish the body's normal flora and prevent thrush, states WebMD.