Normalization of incisor position after adenoidectomy.
Changes in incisor inclination and position in both jaws of children during the first 5 years after adenoidectomy were studied. The main change is a significant increased labial inclination of the incisors for the adenoidectomy groups. All variables that measure the labiolingual position of the mandibular incisors confirm a significant labial incisor positioning for both sexes. Stepwise regression analysis shows that 41% to 44% of the incisor proclination after adenoidectomy is accounted for by two regressors--sex (female) and increase in the sagittal size of the nasopharynx. The study supports the hypothesis that a changed mode of breathing after adenoidectomy is associated with significant labial positioning of the incisor teeth.
Linder-Aronson
S
S
Department of Orthodontics, Karolinska Institutet, Huddinge, Sweden.
Woodside
D G
DG
Hellsing
E
E
Emerson
W
W
D000233:Adenoidectomy; D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007180:Incisor / Q000503:physiopathology*; D008297:Male; D008310:Malocclusion / Q000209:etiology / Q000503:physiopathology*; D008334:Mandible / Q000254:growth & development; D009058:Mouth Breathing / Q000150:complications*; D010614:Pharynx / Q000033:anatomy & histology / Q000254:growth & development; D012123:Pulmonary Ventilation; D012044:Regression Analysis; D012727:Sex Characteristics