BACKGROUND AND AIMS Hypodontia is a common developmental abnormality of dentition. This study aimed to determine tooth width in patients affected with mild hypodontia and compare the results with a control group without tooth agenesis. MATERIALS AND METHODS The orthodontic records of 25 patients with congenital missing of one or two teeth (hypodontia group), and 25 subjects with full dentitio...

BACKGROUND: The decline in caries has slowed and this may be indicative of variation in the susceptibility of differing teeth to caries. This study tests the hypothesis that in children, there are groups of tooth sites that exhibit differences in caries susceptibility. METHODS: Probit analysis of caries data collected from a 4-year longitudinal study of 20,000 schoolchildren aged between 5 and ...

Joubert syndrome (OMIM 213 300) is a rare autosomal recessive disorder, whose locus is on chromosome 9q; it is characterized by ataxia, psychomotor retardation, ocular and respiratory abnormalities related to dysgenesis of cerebellar vermis and mesencephalon. It is currently included in the malformation spectrum of cerebello-oculorenal syndromes (CORS)1. An image known as a “molar tooth sign” i...

a healthy female was referred to endodontic department. the referral letter from her dentist expressed that an emergency pulpotomy of tooth #27 had been carried out with probable perforation of the chamber floor which was due to the unusual anatomy of the chamber. cone-beam computed tomography (cbct) revealed that the tooth had two mesial and two distal canals. perforation site was repaired and...

The mammalian tooth forms by a series of reciprocal epithelial-mesenchymal interactions. Although several signaling pathways and transcription factors have been implicated in regulating molar crown development, relatively little is known about the regulation of root development. Four genes encoding nuclear factor I (NFI) transcription-replication proteins are present in the mouse genome: Nfia, ...

BACKGROUND AND PURPOSE The aim of this study was to test if corticotomy-induced osteoclastogenesis and bone remodeling underlie orthodontic tooth movement and how selective alveolar decortication enhances the rate of tooth movement. MATERIALS AND METHODS A total of 114 Sprague-Dawley rats were included in 3 treatment groups: selective alveolar decortication alone (SADc); tooth movement alone ...

The preservation of deciduous teeth is essential until normal exfoliation. It plays an important role in preventive and interventional dentistry. Early loss a tooth or can have various consequences. Space maintainer the intra-alveolar kind advised when second molar lost before eruption first permanent molar. This report discusses modified Willet appliance cases where primary occur prior to mand...

Joubert syndrome is a rare autosomal-recessive condition characterized by early hyperpnea and apnea, developmental delay, and truncal ataxia. We previously described key ocular motor signs in Joubert syndrome and the molar tooth sign resulting from dysplasia of the isthmic segment of the brain stem, superior cerebellar peduncles, and vermis. In this study, we obtained clinical and developmental...

Address for Correspondence: Can Tekin İskender, Department of Gynecology and Obstetrics, Faculty of Medicine, Başkent University, Seyhan 01200 Adana, Turkey Phone: +90 322 233 32 15 e.mail: [email protected] ©Copyright 2011 by the Turkish-German Gynecological Education and Research Foundation Available online at www.jtgga.org doi:10.5152/jtgga.2011.75 Joubert syndrome (JBTS) is an autosomal ...

UNLABELLED The purpose of this research was to examine the distribution of the tooth size in a large sample. The objective teeth were the left upper and lower fourteen teeth except the third molar. The tooth size of 1,000 dental casts from the Japanese female orthodontic patients was measured. On each of them, a histogram and a set of statistics (mean, standard deviation, coefficient of variati...