Prevalence of mandibular incisor crowding in early mixed dentition among a group of Egyptian children attending pediatric dentistry department, Cairo University : A cross-sectional study / Nourhan Saad Mohamed Ali ; Supervised Amr Ezzat Abdellatif , Osama Ibrahim Elshahawy , Samah Mohamed Awad

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Dental Public Health

Crowding of teeth in the mandibular incisor area is considered the most frequent form of malocclusion in children. The early recognition of the condition in the early mixed dentition stage is an important subject because early treatment may help in normal development of the teeth and jaws. The aim of this study was to evaluatethe prevalence of mandibular incisor crowding in early mixed dentition among a group of Egyptian children attending the Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Cairo University. A convenient consecutive sampling method was applied; it included 391 patients of age range 7-9 years, with early mixed dentition, attending Pediatric Dentistry department clinics. One single examiner -the researcher- clinically examined all the patients included in the study sample for presence or absence of mandibular incisor crowding.The examined children were enrolled if their age was between 7 to 9 years; they wear no space maintainers or any other orthodontic appliance and showed fully erupted permanent incisors and deciduous canines. Children with congenitally missing mandibular permanent central or lateral incisors, those with loss of tooth dimension of mandibular first and/or second deciduous molars by caries or attrition, children with previously extracted mandibular first and/or second deciduous molars or with a previous history of interceptive orthodontic approach or orthodontic interference were excluded from the study

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