The extent and nature of dental anxiety in Australians experiencing homelessness.

High dental anxiety is a major barrier to accessing dental care and has been found to be experienced to a greater extent in the homeless population. No studies have investigated the extent and nature of dental anxiety in Australians experiencing homelessness and was the aim of this study. Participants were recruited from four not-for-profit organisations in inner Brisbane using convenience and snowball sampling.

Ligament regeneration using an absorbable stent-shaped poly-L-lactic acid scaffold in a rabbit model.

Purpose: Ligaments are frequently damaged in sports activities and trauma, and severe ligament injury can lead to joint instability and osteoarthritis. In this study, we aimed to regenerate the medial collateral ligament (MCL) using an absorbable stent-shaped poly-L-lactic acid (PLLA) scaffold in a rabbit model to examine the biocompatibility and mechanical properties.

Methods: Twenty-three Japanese white rabbits were used in this study.

Atomic beam-induced fluorination of polyimide and its application to site-selective Cu metallization.

Metallization methods of polyimide by hyperthermal atomic oxygen and atomic fluorine beams were developed. An atomic fluorine beam with a translational energy of 6.2 eV modified the wettability of polyimide surfaces to provide an advancing water contact angle of 132 degrees.