Aim: To investigate the prevalence of eight morphological and numerical anomalies in the primary dentition of southern Chinese and to compare the prevalences with those from different ethnic groups. Materials and Methods: The material used in the study consisted of plaster casts and standardized panalipse radiographs collected from 936 randomly selected 5-year-old children (493 males and 443 fe...

Mandibular hypodontia of the p2 was found to occur in 3 out of 21 individual prehistoric Rocky Mountain bighorn sheep (Ovis canadensis canadensis) from Moses Coulee Cave in eastern Washington State, similar to its frequency of occurrence in modern bighorn. There is no evidence of lumpy jaw (mandibular osteomyelitis) in the Moses Coulee Cave collection. Evidence from Moses Coulee Cave aligns wit...

PURPOSE Hypodontia is the congenital absence of one or more (up to six) permanent and/or deciduous teeth, being one of the most common alterations of the human dentition. Genetic polymorphisms are variations of DNA sequences occurring in a population. This study investigated whether G-915C single nucleotide polymorphism (SNPs) in the PAX9 gene promoter is associated with hypodontia in humans. ...

Lecturer Professor and HOD Dept. of Oral and Maxillofacial Pathology Abstract: D.A.Pandu Memorial R.V.Dental College and Hospital, Banglore. Hypohidrotic ectodermal dysplasia is an uncommon disorder of tissues derived from ectoderm, characterized by the triad of hypohidrosis and hypodontia, which form the essential features of the syndrome 1. A case of a 7 year old child with hypohidrotic ectod...

AIM This clinical report describes the oral rehabilitation of a 6-year-old male ectodermal dysplasia (ED) patient diagnosed with hypodontia. BACKGROUND ED is a hereditary disease characterized by a congenital dysplasia of one or more ectodermal structures and their accessory appendages. Common manifestations include defective hair follicles and eyebrows, frontal bossing with prominent supraor...

Hypodontia of permanent teeth was evaluated from orthopantomograms of 2072 apparently healthy pediatric patients at The Hospital of Nihon University School of Dentistry at Matsudo. The prevalence of congenitally missing teeth (CMT) was 8.7% in boys and 10.8% in girls, and 9.4% for both sexes combined. Most cases (67.8%) involved either one or two missing teeth. There were in total 574 CMT, and ...

congenitally missing teeth (cmt), or as usually called hypodontia, is a highly prevalent and costly dental anomaly. besides an unfavorable appearance, patients with missing teeth may suffer from malocclusion, periodontal damage, insuf fi cient alveolar bone growth, reduced chewing ability, inarticulate pronunciation     fi elds such as orthodontics, pediatric dentistry, prosthodontics, periodon...

Two teenaged children born of normal parents in a consanguineous family had evidence of abnormal neurological, endocrine, and ectodermal development. They had mental retardation, hearing loss, ocular dysmetria, hyperreflexia, and ataxia consistent with olivopontocerebellar degeneration. They had hypogonadotrophic hypogonadism and extremely short stature despite normal serum growth hormone and s...