Challenges to Engaging Human Factors/Ergonomics Practitioners to Publish and Present Case Studies.

OCCUPATIONAL APPLICATIONSThe aims of human factors Practitioner Case sessions at the International Ergonomics Association (IEA) triennial world congress are to learn from cases, give feedback to researchers, and market ergonomics. Human Science research and Human Factor/Ergonomics are different activities. Both disciplines are equally important for the IEA community.

Case studies--ergonomics in projects.

The aim of a series of sessions on Company Case Studies, is to learn from practical experiences, to give feed back to researchers on applicability of theories, methods and techniques, and last but not least, to market ergonomics. In order to learn from case material, reports need to be easy accessible and well structured. System ergonomics provides such a structure.

HMI conventions for process control graphics.

Process operators supervise and control complex processes. To enable the operator to do an adequate job, instrumentation and process control engineers need to address several related topics, such as console design, information design, navigation, and alarm management. In process control upgrade projects, usually a 1:1 conversion of existing graphics is proposed.

Five-year survival of 3-unit fiber-reinforced composite fixed partial dentures in the posterior area.

Objectives: The purpose of this clinical study was to evaluate the long-term outcome of three-unit posterior fixed partial dentures (FPDs) made of fiber-reinforced resin composite (FRC), and to identify design factors influencing the survival rate.

Methods: 77 patients (52 females, 25 males) received 96 indirectly made FRC FPDs, using pre-impregnated unidirectional glass-fibers, requiring manual wetting, as framework material. FPDs were surface (n=31) inlay (n=45) or hybrid (n=20) retained and mainly located in the upper jaw.

Five-year survival of 3-unit fiber-reinforced composite fixed partial dentures in the anterior area.

Objectives: The purpose of this clinical study was to evaluate the long-term outcome of 3-unit anterior fixed partial dentures (FPDs) made of fiber-reinforced resin composite (FRC), and to identify design factors influencing the survival rate.

Methods: 52 patients (26 females, 26 males) received 60 indirectly made FRC FPDs, using pre-impregnated unidirectional glass fibers, requiring manual wetting, as framework material. FPDs were surface (n=48) or hybrid (n=12) retained and mainly located in the upper jaw.

[Occlusion-building with tooth-colored restoration materials].

Severe localized or generalized tooth wear will result in loss of vertical dimension. Rehabilitation of the dimensional height is often required. A causal approach is the choice of preference to prevent progression of destructive processes.