Repair bond strength of bulk-fill composites: influence of different primers and direction of debonding stress -

The purpose of this in vitro study was to evaluate the effect of different adhesion primers on the repair bond strength of bulk-fill resin composite and short-term hydrolytic stability of the repair interface before and after accelerated aging. In addition, direction of debonding stress was examined…

Reason for loosening of ceramic restorations -

The resin cement forms the weakest link for a ceramic restoration. This was found in an investigation of the de-bonding of resin cementation of zirconia or lithium di-silicate ceramic to bovine dentin.

Bonding -

The bond strength between the different materials is crucial for the longevity of a restoration.

Optical characterization of biomaterial/radiation-exposed oral mucosa by reflection spectroscopy -

Previously, we have reported data obtained from near-infrared reflection spectroscopy (NIRS) used to non-invasively monitor tissue changes after optical exposure. The results indicated that oral mucosa may be more sensitive than skin to blue light. In this pilot study, visible data from NIRS (VNIRS) was used to observe differences between exposure groups with respect to the following parameters: pigmentation (melanin index; MI), blood oxygenation (OX) and erythema (erythema index; EI).

Bond strength between a silica glass-fiber-reinforced composite and artificial polymer teeth. -

The aim of the study was to investigate the bond strength of a silica glass-fiber-reinforced composite to polymer teeth compared with the bond strength of a proprietary heat-polymerized denture base polymer and also between a layer of the polymerized matrix polymer of the experimental base material and an additional layer of the same material.