Creep studies of multiphase acrylic systems -

The influence of type and quantity of five different crosslinking agents on tensile creep properties of multiphase acrylic systems has been studied.
The investigation showed higher creep values for autopolymerized than for heat-polymerized materials.

Release of formaldehyde from dental composites. -

Polymeric composite materials may contain releasable degradation products or unreacted constituents. Release of formaldehyde from nine different composites was investigated

Adhesion to titanium of methacrylate-based polymer materials. -

The purpose of the investigation was to study the bond strength between silanized titanium specimens and poly(methyl methacrylate) (PMMA).
The average bond strength of the specimens after dry storage at 37°C was 25 MPa. Water storage for 30, 60 or 90 days at 37°C reduced the bond strength to approximately 9–11 MPa.

Creep and recovery of composites for use in posterior teeth during static and dynamic compression -

The deformation behavior of 8 different posterior composites under uniaxial static and dynamic compression have been investigated.

Surface characteristics of posterior composites after polishing and toothbrushing -

The surface characteristics of eight posterior and two anterior composite resins were studied by SEM and profilometric tracings.