Breast Feeding

Nutritive sucking is an oral sensorimotor process that plays a fundamental role in craniofacial development. This process relies on synchronized movements of the facial muscles, tongue and jaw fostering harmonious and balanced growth of both the maxilla and mandible. Breast feeding is unique because it fosters physiologic suckling, a process distinctly different from bottle feeding. The infants’ jaw engages in a rhythmic forward mandibular positioning while the tongue alternates between lifting and lowering to create pressure.⁹ This action promotes greater facial muscle activity, creating a balanced craniofacial growth pattern and development of the jaw bones.

Studies demonstrate breastfed children are about 70% less likely to develop malocclusion compared with those who were bottle fed.⁸ Exclusive and prolonged breastfeeding continues to support oral facial growth, development patterns and reduced malocclusion risks, however, shorter durations, less than six months was associated with increased prevalence of posterior crossbite, as well as higher rates of non-nutritive sucking behaviors, such as digit-sucking.

Breastfeeding for more than 6 months showed more favorable occlusal parameters, including canine class I relationships, primary dental arch development and greater interdental spacing with healthier eruption patterns. A dose-response relationship indicates that longer breastfeeding durations yield stronger protective benefits.⁹ The movement of lips and tongue during breastfeeding also support physiological breathing pathways, nasal breathing and tongue positioning, ensuring a well-rounded U-shaped palate, reducing snoring and sleep apnea risks later in life.⁹