SciELO - Scientific Electronic Library Online

 
vol.31 número4Patrones Morfológicos de Recesiones Gingivales en Población Chilena AdultaEvaluación de Tres Funciones Matemáticas para Describir la Relación entre Peso Corporal, Condición Corporal y Dimensión Testicular en Carneros Yankasa índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


International Journal of Morphology

versión On-line ISSN 0717-9502

Resumen

HERRERA-ATOCHE, José Rubén; COLOME-RUIZ, Gabriel Eduardo  y  ESCOFFIE-RAMIREZ, Mauricio. Third Molar Agenesis, Prevalence, Distribution and Association with Other Dental Anomalies. Int. J. Morphol. [online]. 2013, vol.31, n.4, pp.1371-1375. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022013000400035.

Prevalence of third molar agenesis has been estimated in 24.3% in Mexico. Dental agenesis is associated with other dental anomalies due its genetic origin. The aim of this study was to determine the prevalence and distribution of third molar agenesis and to establish its association with other dental anomalies in an orthodontic population. The sample included 670 orthodontic patients from 9 to 20 years old. Exclusion criteria were patients with previous orthodontic treatment and syndromic conditions. Third molar agenesis prevalence was calculated and sex values were compared. Then, patients were divided into 2 groups, with agenesis of at least one third molar and a control group; prevalence of 10 dental anomalies were calculated for both groups. The results were compared using Fisher's exact test (p <0.05). Third molar agenesis prevalence was 25.97%, there was no statistical difference between sexes (p= 0.139). The 41.95% of patients in the agenesis group had abnormalities associated, whereas in the control group it was 23.59%. A significant difference between groups was found (p= 0.0001). When comparing the prevalence of each individual anomaly between groups, it was found that agenesis (p= 0.0001) and impacted teeth (p= 0.015) were significantly decreased in the control group. In conclusion it was found a prevalence of 25.97%, with no sex preference. Patients with agenesis of third molars have a higher prevalence of associated dental anomalies, particularly agenesis of other teeth and impacted teeth.

Palabras clave : Agenesis; Prevalence; Third molar; Tooth abnormalities.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons