Normalization of incisor position after adenoidectomy

Am J Orthod Dentofacial Orthop. 1993 May;103(5):412-27. doi: 10.1016/S0889-5406(05)81792-5.


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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenoidectomy*
  • Adolescent
  • Child
  • Female
  • Humans
  • Incisor / physiopathology*
  • Male
  • Malocclusion / etiology
  • Malocclusion / physiopathology*
  • Mandible / growth & development
  • Mouth Breathing / complications*
  • Pharynx / anatomy & histology
  • Pharynx / growth & development
  • Pulmonary Ventilation
  • Regression Analysis
  • Sex Characteristics