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Oral-Motor developme

prior to 33 weeks gestation infant is fed by non-oral means
35 weeks gestation jaw and tongue movements are strong enough to allow for feeding
40 weeks gestation rooting, gag, and cough reflexes present (up to 4 months), protecting airway and decreasing changes of aspiration
4-5 months munching occurs consisting of a phasic bite and release of a soft cookie
6 months strong up and down movement of the tongue
7-8 months beginning of mastication of soft and mashed foods with diagonal jaw movements
9 months lateral tongue movements make mastication of soft and mashed food effective, able to drink from cup with weak jaw
12 months jaw is firm, rotary chewing allowing for a good bite on hard cookie
24 months able to chew most meats and raw vegetables
Created by: ebturner