Mechanical Stability and Proteolytic Activity of Resin-dentin Bonds Using the Cross-linked Dry Bonding Technique.

Objective: To evaluate the mechanical stability and the proteolytic activity of bonds created by a two-step, etch-and-rinse adhesive applied to cross-linked and air-dried etched dentin.

Methods: Flat dentin surfaces were produced in 64 extracted sound human molars. The dentin was etched with 35% phosphoric acid for 15 seconds, and then the teeth were divided into groups according to the cross-linking solution applied on the etched dentin.

Epithelial cell-enhanced metabolism by low-level laser therapy and epidermal growth factor.

Reepithelialization and wound closure are the desired outcome for several ulcerative conditions. Such resolution reduces the possibility of wound contamination and maintenance of the injury and improves the reestablishment of tissue morphology and functions. Investigators are seeking adjuvant therapies that can accelerate wound healing and are developing new strategies for clinical applications.

The time it takes to make judgments of velocity.

Reaction times were measured in an absolute judgment experiment involving either the location of a point on a screen, or the direction of a moving point, or its velocity. Stimuli were chosen to be almost perfectly detectable and discriminable when presented pairwise to avoid confusions at the sensory coding level. Typical results associated with absolute judgment tasks were observed, as to the amount of information transmission and anchoring effects.