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:: Volume 17, Issue 2 (Foll Text in Persian 2005) ::
2005, 17(2): 100-104 Back to browse issues page
Prevalence of posterior crossbite in (3-5) years – old nursery schools' children in Zahedan in 2002 - 2003
Homa Noorollahian * , Saeed Bordbar
, ma_azadi@yahoo.com
Abstract:   (11530 Views)

Prevalence of posterior crossbite in (3-5) years – old nursery schools' children in Zahedan in 2002 - 2003

Dr. H. Noorollahian * - Dr. S. Bordbar**

*- Assistant Professor of Pedodontics Dept. - Faculty of Dentistry –Zahedan University of Medical Sciences.

**- Dentist.

Background and Aim: Posterior crossbite is a common phenomenon in primary dentition which is classified in three general types of skeletal, dental and functional which are not mostly self – corrected, however a suitable and on – time treatment may prevent it to change into a skeletal disorder. The goal of this study was to determine the prevalence of posterior crossbite among 3-5 year-old nursery school's children in Zahedan.

Materials and Methods: In this cross – sectional descriptive study, data were gathered through clinical examination and questionnaire in 870 children, 500 boys and 370 girls. The unilateral crossbite was characterized by cusp – to – cusp position of molars in central occlusion and the mandible, to find a stable occlusion, had to slide to one side. If there was no midline deviation it was classified as bilateral cross-bite. The data were analyzed using descriptive statistical methods and X2 test.

Results: The prevalence of posterior crossbite in the studied group was 3.2%. The posterior cross-bite was more in girls (4.3%) than boys (2.4%). Unilateral posterior crossbite was observed in 92.8% of cases and bilateral posterior crossbite was seen in 7.2%.

Conclusion: The prevalence of posterior crossbite was 3.2% in (3-5) year – old children in Zahedan nursery schools.

Key words: Posterior cross bite – Primary dentition - Prevalence.

Keywords: Posterior cross bite, Primary dentition, Prevalence
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Type of Study: Research | Subject: General
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Noorollahian H, Bordbar S. Prevalence of posterior crossbite in (3-5) years – old nursery schools' children in Zahedan in 2002 - 2003. The Journal of Islamic Dental Association of IRAN (JIDA) . 2005; 17 (2) :100-104
URL: http://jida.ir/article-1-171-en.html


Volume 17, Issue 2 (Foll Text in Persian 2005) Back to browse issues page
مجله دندانپزشکی جامعه اسلامی دندانپزشکان Journal of Islamic Dental Association of Iran

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