The prevalence of dental anomalies including agenesis, crown shape, tooth position, root shape, and invagination were examined in 111 orthodontic patients; 74.77 per cent of the patients exhibited at least one dental anomaly. Invagination was found to be the most prevalent anomaly, whereas supernumerary teeth and root dilaceration were the least frequent anomalies. Dental invagination and short...

Introduction Appendicocecal intussusception is an uncommon condition which must be differentiated from other types of invagination due to different therapeutic approaches and its ultrasound findings are outspread and imperfectly presented in literature. We present a cas...

The opinions, findings, conclusions or recommendations expressed in this report or product are those of the authors and do not necessarily reflect the views of the Minerals Management Semce or Geological Survey, nor does the mention of trade names or commercial products constitute endorsement or recommendation for use by the Federal Government. INTRODUCTION Recent research has shown that Forwar...

We give the basic definitions for the complex bordism groups of manifolds and survey some foundational results in the subject.

a Endodontic Postgraduate Program, CUCS-CUAltos, University of Guadalajara, México; b Adjunct Assistant Professor in Endodontics and Surgical Course Co-Director, Nova Southeastern University, College of Dental Medicine, Fort Lauderdale, Florida, USA; c Endodontic Postgraduate Program, CUCS, University of Guadalajara, México; d Department of Endodontics, Nova Southeastern Universitiy College of ...

Congenital morphological dental alterations are related to the physiological phase of tooth development. Since the etiology of the dens invaginatus and supernumerary roots has yet to be fully determined, a rare presentation of dens invaginatus in a primary molar and a birooted deciduous maxillary canine were incidentally detected in routine radiographic examinations. Essential clinical consider...

Dens invaginatus is a developmental anomaly resulting from infolding of the surface of the tooth crown before calcifi cation has occurred. While several mechanisms have been proposed for the cause of this phenomenon the exact etiology is not known. The malformation shows a broad spectrum of morphologic variations and frequently results in early pulp necrosis. The nature of the problem may incre...

The diagnostic performance of helical computed tomography (CT) is excellent. However, some artifacts have been reported, such as motion, beam hardening and scatter artifacts. We herein report a case of motion-induced artifact mimicking cervical dens fracture. A 60-year-old man was involved in a motorcycle accident that resulted in cervical spinal cord injury and quadri plegia. Reconstructed CT ...

Platinum dendrimer-encapsulated nanoparticles (DENs) were prepared within fourth-generation, hydroxyl-terminated, poly(amidoamine) dendrimers and immobilized on glassy carbon electrodes using an electrochemical coupling strategy. X-ray photoelectron spectroscopy, electron microscopy, and electrochemical experiments confirmed that the Pt DENs were about 1.4 nm in diameter and that they remained ...