نتایج جستجو برای: tooth agenesis

تعداد نتایج: 94093  

2017
Ana Maria Guerra Costa Mariana Trevizan Mírian Aiko Nakane Matsumoto Raquel Assed Bezerra da Silva Lea Assed Bezerra da Silva Karla Carpio Horta Fabio Lourenço Romano Paulo Nelson-Filho Erika Calvano Küchler

OBJECTIVES The aim of this study was to evaluate the association between tooth agenesis and skeletal malocclusions in Brazilian non-syndromic orthodontic patients. MATERIAL AND METHODS Pretreatment orthodontic records of 348 patients of both genders and with various skeletal malocclusions were examined. Tooth agenesis was evaluated in panoramic radiographs. Angular measurements were taken fro...

Journal: :Journal of oral science 2013
Leonardo S Antunes Erika C Küchler Patricia N Tannure Juliana B L Dias Vanessa N Ribeiro Andrea Lips Marcelo C Costa Lívia A Antunes Jose M Granjeiro

We investigated the association between polymorphisms in the MMP2 (rs243865), MMP9 (rs17576), and MMP13 (rs2252070) genes with tooth agenesis in humans. Two hundred eighty-five unrelated individuals (202 controls without tooth agenesis and 83 cases with tooth agenesis) were evaluated in a cross-sectional single-center study. The study participants were recruited through the Pediatric Dental Cli...

Journal: :Case Reports 2011

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2000
H Vastardis

The important role of genetics has been increasingly recognized in recent years with respect to the understanding of dental anomalies, such as tooth agenesis. The lack of any real insight into the cause of this condition has led us to use a human molecular genetics approach to identify the genes perturbing normal dental development. We are reporting a strategy that can be applied to investigate...

Journal: :Neuro endocrinology letters 2015
Alena Hlousková Ondrej Bonczek Lydie Izakovicová-Hollá Jan Lochman Jana Soukalová Jan Stembírek Ivan Mísek Pavlína Cernochová Premysl Krejcí Jirí Vanek Omar Šerý

OBJECTIVES Tooth agenesis is one of the most common developmental anomalies in humans. Genetic and environmental factors may be of etiological importance in this condition. Among genes involved in tooth morphogenesis, mutations in PAX9, MSX1, AXIN2, WNT10a, and EDA genes have been associated with tooth agenesis. The aim of our study was to investigate the relationship between the PAX9 gene vari...

Journal: :American journal of medical genetics. Part A 2014
Gabriele Mues John Bonds Lilin Xiang Alexandre R Vieira Figen Seymen Ophir Klein Rena N D'Souza

Mutations in the WNT10A gene were first detected in the rare syndrome odonto-onycho-dermal dysplasia (OODD, OMIM257980) but have now also been found to cause about 35-50% of selective tooth agenesis (STHAG4, OMIM150400), a common disorder that mostly affects the permanent dentition. In our random sample of tooth agenesis patients, 40% had at least one mutation in the WNT10A gene. The WNT10A Phe...

Journal: :European journal of orthodontics 2014
Karoline Dreesen Steven Swinnen Koenraad Devriendt Carine Carels

BACKGROUND Even though tooth agenesis is the most common developmental anomaly of the human dentition, its genetic background and pathogenic mechanism(s) still remain poorly understood. Syndromic and isolated forms of hypodontia have been described and can occur sporadically or in families. OBJECTIVES We describe and analyse the hypo-/oligodontia phenotype variations in families. The index pa...

2017
Dimitrios Konstantonis Alexandros Alexandropoulos Nikoleta Konstantoni Maria Nassika

BACKGROUND The aim of this study was to investigate the prevalence of tooth agenesis, microdontia, and tooth malformation among non-syndromic oral cleft patients and their potential association with cleft type and gender. METHODS Intraoral records and radiographs of 154 patients (97 males and 57 females) were examined. The variables assessed were tooth agenesis, microdontia, dental malformati...

Hekmatfar, Somayeh, Hoseini, Saleh, Jafari, Karim, Mikaili, Hesam,

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...

2014
A Bozga RP Stanciu D Mănuc

INTRODUCTION Tooth agenesis is a phenomenon that occurs relatively commonly. The incidence of the missing teeth presented in the previous reports varies according to the studied population. OBJECTIVE The aim of this study was to find the prevalence of tooth agenesis in a population group in Bucharest. METHODS AND RESULTS The prevalence and distribution of dental agenesis was determined in a...

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