Effects of tongue volume reduction on craniofacial growth: A longitudinal study on orofacial skeletons and dental arches.

摘要: The interaction between tongue size/volume and craniofacial skeletal growth is essential for understanding the mechanism of specific types malocclusion objectively measuring outcomes various surgical and/or orthodontic treatments. Currently available information on this limited. This study was designed to examine how body volume reduction affects skeleton dental arch formation during rapid period in five 12-week-old Yucatan minipig sibling pairs. One each pair received a standardized glossectomy reduce by 15-17% (reduction group), other had incisions without tissue removal (sham group). Before surgery, stainless steel screws were implanted into locations. A series cephalograms, lateral axial, obtained longitudinally at 1 week preoperative, 2 4 weeks postoperative. These images traced using superimposition, linear angular variables measured digitally. Upon euthanasia, direct osteometric measurements from harvested skulls. Five en-bloc bone pieces further cut mineral examination dual photon/energy X-ray absorptiometry (DEXA). results indicate that: (1) while daily food consumption weekly weight not significantly affected, showed an overall negative effect expansion skeletons; (2) premaxilla mandibular symphysis lengths, anterior width less than sham animals after surgery; (3) both premaxilla/maxilla mandible density content lower animals, mandible; (4) size smaller being most significant length ramus height, midface width. suggest that reducing young slows growth. mandible, particular its portion, are affected. effects may part contribute decrease functional loads mouth volume-reduced tongue.