Posts Tagged ‘adenoidectomia’

Adenoidectomy and Facial Growth

Monday, March 14th, 2011

At the same meeting of the Angle Society, Orlando 2011, as Part 2 of the work of the relationship betweenthe airway of the nasopharynx and craniofacial growth , discussed a review of the literature in recent 25 years on this subject as controversial as:adenoids – mouth breathing and facial growth.

Subtle (1954)y Linder-Aronson(1970) describe “cara adenoidea”, due to hypertrophic adenoids,involving mouth breathing by nasal obstruction,so, is formed with the growth of the child a long, narrow face. However, this juncture and association of symptoms has been discussed by many authors. In the article by Aronson (1979) and a Solow (1984) mentioned that the changes exist in the craneofacies is due to some changes”mechanical” leading to “cara adenoidea”;so there is a disturbance of muscle balance of the face, creatadenoid facete and a lower tongue position, which produces an imbalance between the cheeks and tongue, thereby causing a downward mandibular position and head extension. All this,coming from a lack of nasal breathing by a blockage of the upper respiratory tract or nasopharynx. It also notes that, to remove the adenoids and adenoidectomy, nasal breathing increases, increasing growth and closing the mandibular plane of the jaw, thereby helping to close the open bite.

In 2006, Zettergren-Wijk reported that after 5 years of performing adenoidectomy, the plane of the mandible decreases by increasing the posterior facial height, although increased anterior facial height remains. After the adenoidectomy, there is an increase of the mediators of growth hormone, Insulin Growth Factor 1, and Insulin Growth Factor 1 BP (bounded protein), the latter travels through the bloodstream to accompany a protein. These mediators are set to the masticatory muscles with increased activity, the masseter and medial pterygoid, resulting in increased somatic growth. Thus in the condyle, create an endochondral growth and the gonion, appositional growth (Vogl, 1993), thus increasing posterior facial height and mandibular plane closed. So, from 2006, states that the craniofacial growth disturbances post-adenoidectomy should be some changes”Metabolic” of growth hormone, and not to changes “mechanical” described in 70 and 80.