This study examined the effect of four margin designs on marginal adaptation of Captek crowns during selected processing steps. Twenty-four Captek crowns were fabricated, six each of four margin designs: shoulder (Group A), chamfer (Group B), chamfer with bevel (Group C), and shoulder with bevel (Group D). Marginal discrepancies between crowns and matching dies were measured at selected points ...

This paper proposes an approach to investigate the influencing factors of the brake pad on the disc brake squeal by integrating finite element simulations with statistical regression techniques. Complex eigenvalue analysis (CEA) has been widely used to predict unstable frequencies in brake systems models. The finite element model is correlated with experimental modal test. The ‘input-output’ re...

PURPOSE The purposes of this study were to evaluate the marginal and internal gaps, and the potential clinical applications of three different methods of dental prostheses fabrication, and to compare the prostheses prepared using the silicone replica technique (SRT) and those prepared using the three-dimensional superimposition analysis (3DSA). MATERIALS AND METHODS Five Pekkton, lithium disi...

Background and aim: Marginal adaptation affects the long-term success of full-coverage restorations. This study aimed to assess the effect of porcelain sintering and zirconia core thickness on the marginal adaptation of all-ceramic restorations. Materials and methods: In this in-vitro experimental study, a standard brass die, 7 mm in length and 5 mm in diameter, was fabricated using a milling ...

OBJECTIVE To identify the main characteristics of classic migraine, with specific regard to diagnostic criteria for manual therapy practitioners, including chiropractors and osteopaths. METHOD Ten case studies on migraine were reviewed for the symptoms and clinical features. RESULTS The majority of cases reviewed as classic migraines were in reality not correct diagnoses in accordance with ...

The hydrodynamic equations of continuity and momentum for electrons and ions along with the electrostatic field equation are solved numerically using a self-consistent finite-element algorithm in the low-pressure, high frequency regime. The plasma formation over a flat plate is investigated for three different cases. The twodimensional numerical algorithm is first benchmarked with published lit...