A hygienic oral pacification device includes a fluid-filled bladder. The bladder includes a nipple and alveolar ridge-mating flanges. The bladder is dynamically shaped and allows for pressures provided by the suckling child to re-shaping the bladder and flanges. A bite-block extends into the bladder to maintain a fluid path from nipple to flanges. As the child completes the suckling cycle, the bladder nipple is depressed and fluid is forced in the engorging flanges. The flanges thus cover the alveolar ridges and fill the vestibules. Further, a feed-bottle nipple includes an opening skirt to expand and rotate in the buccal vestibule. As the child completes the suckling cycle, the mouth portion is distorted, the skirt extended to provide cleaning, stimulation, and a bumper to deny extensive pronation. The flanges and skirt may be covered with a textured surface, or bristles, that provide mechanical brushing of oral surfaces.