Residual stress in bench- and furnace-cooled porcelain-fused to zirconia appliances -

A new study of veneered zirconia shows that the magnitude of residual stresses can only be estimated reliably from the manufacturers’ thermal expansion coefficients if the veneered prosthesis is cooled slowly after the final firing.

Thermal induced deflection of a porcelain–zirconia bilayer: Influence of cooling rate -

To determine the thermal expansion of a porcelain (VM9) and tetragonal zirconia (Y-TZP) as well as the deflection upon re-heating and cooling of a bilayer fabricated from these two materials after slow and rapid cooling during initial fabrication.

Digital dentistry -

Digital manufacturing using intraoral scanners appears to provide equivalent fit compared to conventional technique for smaller prosthetic constructions. Milled composites have a less toxic potential compared to traditional light cured directly placed composite restorations.

NIOM with strong contingent at the ISO/TC 106 annual meeting in Milan -

At the annual dentistry standardisation meeting being held in Milan, Italy from September 16 to 21 there will be a strong NIOM contingent.

Standards for digital dental impressions -

On 29 June 2015, the International Organization for Standardization, ISO, published a revised version of ISO 12836, the standard for assessing the precision of the scanning devices used in dentistry to create digital impressions for prosthetics. By precision we mean that a scanning device delivers the same digitized geometrical model of a test object every time within a given uncertainty in dimensions. Precision is the manufacturer’s responsibility.