The patent relates to a simple noninvasive process for enhancing the adhesion of dental cements to ceramic dentures that exploits the hydrolysys of AlN powder in a water suspension. The process was developed within the PhD thesis of A. Kocjan, while the implementation was part of a PhD thesis of P. Jevnikar and master thesis of M. Golobic, whose presentations were recognized by the Pfaffenberg award given by ADM to outstanding students achievemnets in 2010 and ECERS in 2012 for the best student's poster. A spinout company InnCerT was founded for development and marketing of a kit for the application of the adhesion coating in dental laboratories.
F.09 Development of a new technological process or technology
COBISS.SI-ID: 21150759This outstanding thesis of a young researcher from industry deals with the removal of binder from a lowpressure injection-molded part in a powder bed. A theoretical model was developed that considers thermal expansion and capillary suction of binder below 180°C and oxidation and binder degradation above 180°C, accompanied by an increase in strength. Three major papers in top ranked journals speak for the scientific quality of the work, while the industrial verification of the model resulted in substantial savings due to up to 80% shorter wickdebinding time. Furthermore, with the use of high purity carbon black as fugitive suction medium, additional savings of the production costs are envisaged, because it enables the debinding process to be accomplished during the sintering step. A patent application was filled for the process that still needs to be implemented.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 1251423During his postdoctoral stay at Stockholm University, dr. Andraž Kocjan studied the processing and sintering of mesoporous irconia (ZrO2) powder. Within the scope of this research he applied for a project entitled »Improved Reliability of Translucent Dental Zirconia and Alumina Ceramics«, which was funded by Frontiers of Research 2012 call from JECS Trust. The project was successfully terminated and the results were orally presented on ECERS XII conference (Limoges, France). Part of the results were published in the Journal of the European Ceramic Society.
D.01 Chairing over/coordinating (international and national) projects
COBISS.SI-ID: 27440423This invited lecture reviewed the results of our extensive research on the paraffinwax suspensions that are commonly used in shaping of complex ceramic bodies via lowpressure injection molding. The results were published in a series of papers in the renowned scientific journals from the field, while prior to that some of the inventions arising from this research were also patented. In 2012 the presenting author established a hightech company (Vallcer d.o.o.) aimed at exploiting the aforementioned knowhow. The initial company’s production program consists of a family of dental ceramic root posts, whereby the knowledge gained within a recently accomplished PhD Thesis will be used in optimization of wickdebinding of molded parts that represents the utmost crucial production step in LPIM. The root posts were designed and developed in the frame of the preceding research program on “Engineering and bioceramics” and are currently clinically tested at the Universitys' dental school.
F.20 Company spin off
COBISS.SI-ID: 22864167By closing the link between the development of ceramic materials and their rapidly increasing uses in restorative dentistry this book is meant to a broader audience, covering dentists, dental technicians, dental students as well as ceramicists and students in the fields of dental medicine, materials science and engineering. The idea for the book was born during the successful organization of a thematical symposium as part of the 11th European Ceramic Society conference held in Stockholm in 2012.
B.01 Organiser of a scientific meeting
COBISS.SI-ID: 27062567