An Epidemiologic Study of Deciduous Molar Relations in Preschool Children
نویسندگان
چکیده
منابع مشابه
An epidemiologic study of deciduous molar relations in preschool children.
This study indicated that distoclusion decreased significantly with age and was more prevalent in siblings of children with Class II molar relation as compared with the prevalence for the total population. Children of middle socioeconomic status (SES) and girls with Class I molar relation had prevalences of posterior crossbite significantly greater than lower SES children and boys, respectively...
متن کاملAn epidemiologic study of linear enamel hypoplasia of deciduous anterior teeth in Guatemalan children.
Although linear enamel hypoplasia is commonly seen in children of malnourished communities throughout the world, the aetiology is undetermined. This study attempted to explore the distribution of this enamel defect in 429 Guatemalan children (ages 683 months) from four rural villages. The prevalence ranged from 18 to 24 per cent in three villages to 62 per cent in the fourth. The prevalence did...
متن کاملIncidence and distribution of deciduous molar ankylosis, a longitudinal study.
AIM To study incidence and distribution of deciduous molar ankylosis. MATERIALS AND METHODS study design: longitudinal retrospective study. A total of 512 consecutive subjects (aged 5 to 15 years) were examined at the Orthodontics and Paediatric Dentistry Department of the Genoa University School of Dentistry; for each subject an ortopantomography x-ray was taken. RESULTS Thirty-four childr...
متن کاملan exploratory study of differential item functioning (dif) in efl reading comprehension
بررسی دلایل عملکرد متفاوت سوالات آزمون درک مطلب به زبان خارجی تاریخچه ی تحقیق درباره ی منابع عملکرد مختلف سوالات (دیف) در آزمون درک مطلب پر است از مجموعه ای از متغیرهای فرضیه ای که چند مورد از مهمترین آنها عبارتند از: جنسیت، آشنایی با موضوع متن، علاقه به موضوع یا محتوای متن، حدس زدن، و عوامل بافت اجتماعی (پی 2004؛ زومبو و گلین 2005). مطالعه حاضر با استناد به فلسفه ی انکارپذیری پوپر عوامل ذکر...
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ژورنال
عنوان ژورنال: Journal of Dental Research
سال: 1975
ISSN: 0022-0345,1544-0591
DOI: 10.1177/00220345750540040501