منابع مشابه
Tooth Agenesis
Tooth agenesis denotes a condition where teeth are missing due to a developmental failure. According to severity, this malformation can be subdivided into hypodontia, oligodontia and anodontia. With a frequency of 20–30%, tooth agenesis is the most prevalent dental dysplasia, but not all teeth are equally affected. Familial occurrence and concordance in twins indicate potential genetic causes. ...
متن کاملRadiographic Evaluation of Dental Development in Patients With Tooth Agenesis
Introduction: Hypodontia is one of the most common developmental anomalies. This study aimed to evaluate the variations of radiographic dental development in a group of Iranian children with dental agenesis. Materials and Methods: This study evaluated 1230 Orthopantomographs (OPGs) for agenesis of permanent teeth obtained from the patients aged between 8 and 18 years. Then the difference betwe...
متن کاملAetiological factors in obesity.
It is a rather difficult task to give a review on the aetiology of obesity, as in spite of the intensive investigations of the last two decades, we have to confess that we do not know much about the aetiology. The problem of obesity is complex. Besides social and economic aspects, biochemical, genetic, neural and psychological factors are closely interacting. Changes in the energy balance have ...
متن کاملAetiological factors in hypospadias.
Epidemiological and genetic variables in hypospadias were analysed during the years 1978 to 1983 in a case control study of congenital malformations in the Emilia Romagna region of northern Italy. During the observation period, in a sample of 41 078 male newborns, 168 had hypospadias giving a prevalence at birth of 4.1 in 1000 males. Hypospadias was divided into three types: type I or mild (75....
متن کاملColorectal cancer and self-reported tooth agenesis
BACKGROUND Germline mutations in APC and AXIN2 are both associated with colon neoplasia as well as anomalous dental development. We tested the hypothesis that congenitally missing teeth may occur more commonly in individuals diagnosed with colorectal cancer than in individuals without this diagnosis. METHODS Via a survey conducted on 1636 individuals with colorectal cancer (CRC) and 2788 indi...
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ژورنال
عنوان ژورنال: IOSR Journal of Dental and Medical Sciences
سال: 2017
ISSN: 2279-0861,2279-0853
DOI: 10.9790/0853-1601057585