EVALUATION OF RETENTION FORCE OF POLYETHERETHERKETONE (PEEK) AND CAST COBALT-CHROMIUM CIRCUMFERENTIAL CLASPS: A COMPARATIVE STUDY

Evaluation of Retention Force of Polyetheretherketone (PEEK) and Cast Cobalt-Chromium Circumferential Clasps: A comparative study

Aims: The aim of this in-vitro study was to compare the retention force of Polyetheretherketone (PEEK) and Cobalt-Chromium (Co-Cr) clasps by mechanical cycling test simulating ten years of use.Materials and Methods: 72 clasps samples were fabricated on a standardized e-max upper right first premolar, it is divided into 24 Co-Cr clasps, and 48 PEEK

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First-principles calculations on dislocations in MgO

While ceramic materials are widely used in our society, their understanding of the plasticity is not fully understood.MgO is one of the prototypical ceramics, extensively investigated experimentally and theoretically.However, there is still controversy over whether edge or screw dislocations glide Lighting more easily.In this study, we directly mod

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Hypokalemia : what correlation with psychotic relapse ?

Introduction Hypokalemia is often detected on standard biological assessments of patients hospitalized for psychiatric disorders.Many explanations are advanced by clinicians like insufficient food intake or drug effects.But what if there was a relationship between this ionic disorder and psychotic relapses? Objectives To assess the frequency of hyp

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Vegetation communities on commercial developments are heterogenous and determined by development and landscaping decisions, not socioeconomics.

In urban ecosystems, woody vegetation communities and the ecosystem functions and habitat they provide are largely controlled by humans.These communities are assembled during development, landscaping, and maintenance processes according to decisions made by human actors.While vegetation communities on residential land uses are increasingly well stu

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