# Pacifier use might increase the risk of middle ear infections. However, rates of middle ear infections are generally lowest from birth to age 6 months — when the risk of SIDS is the highest and your baby might be most interested in a pacifier.
# Prolonged pacifier use might lead to dental problems. Normal pacifier use during the first few years of life doesn't cause long-term dental problems. However, prolonged pacifier use might cause a child's top front teeth to slant outward or not come in properly.