Effect of bottles, cups, and dummies on breast feeding in preterm infants: a randomised controlled trial
Collins et al. ran this RCT with a group of 319 preterm infants to determine the effect of artificial teats (bottle and dummy) and cups on breast feeding. They found that cup feeding significantly increased the prevalence of fully breast feeding on discharge home but had no effect on any breast feeding and was associated with longer stays in hospital. Use of dummies did not affect breast feeding and did not affect length of stay.