Prevalence and factors associated with anterior open bite in 2 to 5 year old children in Benin city, Nigeria.

نویسندگان

  • I N Ize-Iyamu
  • M C Isiekwe
چکیده

BACKGROUND Anterior open bite is said to exist when there is an actual vertical gap between the upper and lower incisors with the teeth in centric occlusion. This could occur in the anterior or posterior region, and may be attributed to the supra eruption of the posterior teeth or the infra eruption of the anterior teeth and it is common in both adults and children. OBJECTIVE To evaluate the prevalence of anterior open bite (AOB) in 2 to 5 -year -old children and the aetiological factors responsible for it. METHODS The study group comprised 1031 children (429 boys and 602 girls) between the ages of 2 to 5-years, who were examined for the presence of AOB and the relationship with various oral habits. RESULTS AOB was present in 29 (2.8%) of the subjects. Sucking habits were observed in 267 (25.9%) children. Only 29(10.9%) of the children with sucking habits had an AOB which was asymmetric in 20 (7.5%) and symmetric in 9 (3.4%). The asymmetric AOB was significantly higher in children with thumb sucking habits than in finger suckers (P<0.05). There was no significant difference between frequency, duration of sucking habits and AOB. The 4-year olds showed a significant difference in the number of children with AOB (P<0.05). Sucking habits of 1-2 hours and duration of 24 to 60 months exhibited the highest prevalence of an AOB in 13 (44.8%) and 17 (58.6%)children respectively. CONCLUSION The prevalence of AOB in this study is 2.8%. Thumb sucking is the most important aetiological factor in the formation of an AOB in 2 to 5-year-old children.

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عنوان ژورنال:
  • African health sciences

دوره 12 4  شماره 

صفحات  -

تاریخ انتشار 2012