There is no topic within Endodontics that causes more controversy and interest than the mechanical failure of root filled teeth. Although such failures present in scenarios ranging from cuspal fractures to vertical fractures, all involve development cracks (Rivera & Walton 2007). As a result microbial contamination, these fracture lines can trigger endodontic symptoms or periodontal bone loss (...

A tooth displaced down into alveolar bone is an intrusive luxation. This injury usually is accompanied by comminution of alveolar fracture. The dislocation is frequently axial and radiographic examination reveals absence of periodontal space. The primary site for luxation injuries is the maxillary anterior region in the primary and permanent dentition with frequency higher in the primary dentit...

I demonstrate four little-known properties of the BlackScholes option pricing formula: (1) An easy way to find delta. (2) A quaint relation between calland put-prices. (3) Why vega-hedging though non-sensical will help. (4) What happens if you take vegahedging too far. Introduction The Black-Scholes formula is the mother of all option pricing formulas. It states that under perfect market condit...

Trauma to the primary incisors may, by their displacement, cause developmental disturbances in the root formation of the permanent incisors. To verify this hypothesis, dental radiographs of 34 children, whose primary incisors had been previously injured, were evaluated. Only 6 children showed disturbances in root development of maxillary permanent incisors. Three cases in which trauma to the pr...

Researchers agree that mental illness is neither necessary nor sufficient for creativity. But is there still a significant link between the two? The oft-cited studies by Jamison (1989), Andreasen (1987), and Ludwig (1995) showing a link between mental illness and creativity have been criticized on the grounds that they involve small, highly specialized samples with weak and inconsistent methodo...

One of the enduring puzzles about schizophrenia is the question of why it typically first occurs in late adolescence or early adulthood. Structural neuroimaging studies indicate that persons with schizophrenia show prominent progressive brain changes at this time. For example, Andreasen and colleagues recently reported on the largest longitudinal study to date looking at brain volume changes ov...

This short review will focus on how to interpret variants of uncertain significance (VUS) in the setting newborn screening (NBS) for severe combined immunodeficiency (SCID). Many tenets this can be extrapolated other settings; however, NBS SCID represents a best-case scenario variant interpretation because nearly all genes are known and phenotype is easily defined, usually as T-cell count. The ...

BioanalysisVol. 13, No. 15 CommentaryFree AccessRapid diagnostics for SARS-CoV-2 virus: point-of-care testing and lessons learned during the pandemicTrieu Nguyen & Anders WolffTrieu *Author correspondence: E-mail Address: [email protected]://orcid.org/0000-0002-3862-7373Department of Biotechnology Biomedicine, Technical University Denmark, Ørsteds Plads, DK-2800 Kgs, Lyngby, DenmarkSea...

Through the use of a new trauma form, the incidence of various types of oral trauma were reported at The Children’s Hospital Medical Center and two private pedodontic offices. During a one-year period, 338 cases of oral trauma were treated. The major cause of the trauma seen involved falls of various types. Sports and bicycle accidents accounted for a number of injuries as well. The number of t...

LIBRARIANS EXPERIENCE SOME UNEASE with marketing’s focus on the customer in spite of the centrality of a user focus in defining the profession. By examining different organizational objectives for libraries, the choices librarians make about customer focus and orientation toward marketing become clearer. Ideas from the relatively new field of social marketing reveal the social cause/message hea...