La extracción dentaria en la clínica ortodóncica
- J. Travesí Gómez
- R.M. Cabrera Maldonado
ISSN: 0210-1637
Year of publication: 1995
Volume: 36
Issue: 2
Pages: 61-73
Type: Article
More publications in: Ortodoncia española: Boletín de la Sociedad Española de Ortodoncia
Abstract
Dental extraction frecuency in 500-orthodontic patients has been studied during the last 5 years. Extractions were performed in 32.1 % of the patients with higher proportion in females: 34.1% than in males: 25.2%. Considering type of malocclusion the highest frecuency was seeing in Angle Class I: 37.7% and the lowest in Angle Class II 25.2%. Teeth more often extracted were premolars with 52.5% of upper and lower first premolars, 7.7% of upper first premolars and lower second premolars, and 3.2% of upper and lower second premolars. Extraction cases had a high prevalence of open bite, low deep bite presentation and marked lip protrusion. There were also found severe crowding and high incisor protrusion. There were not found differences in mandibular growth pattern, bicanine and bimolar distances, or maxillary or mandibular size between extraction and non-extraction cases.