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More and more patients request fixed prosthetic restorations. They consider the stress to be anticipated due to the necessary augmentation together with the incalculable outcome an insurmountable hurdle. In addition, they expect to be provided with a restoration requring neither time-consuming healing times nor badly fitting temporary restorations. Can patients' wishes be met by treatment involving an implantborne temporary immediate restoration or does placement of this type of restoration represent an incalculable risk? Apart from the best known All-on-4 system supplied by Nobel Biocare, in the meantime many others such as Straumann Pro Arch or Comfour from Camlog have gained market acceptance. This article explains the clinical and scientific considerations of this type of restoration, as well as the potential risks encountered with such treatment.

This clinical report describes the step-bystep protocol for novel, 100% non-prep, custom- modified, prefabricated composite veneer restorations in the case of an esthetic rehabilitation of a patient presenting peg-shaped lateral incisors and undersized maxillary central incisors. A correct diagnosis, comprehensive treatment plan, and an interdisciplinary approach are necessary to obtain optimal conservative and predictable esthetic results.

The purpose of this study was to determine the effects of tooth cavities by hemostatic agents applied after blood contamination on marginal adaption of composite restorations bondes with etch-and-rinse and selfetch adhesives. The conclusions is: Cavity contamination with hemostatic agents applied after blood contamination and removed with water spray, does not compromise marginal adaption in enamel and dentin. In the case of contamination of an aluminum-chloride hemostatic agent, the tested etch-and-rinse approach resulted in a higher percentage of continious enamel margins of composite restorations than did the self-etch approach.

Artificial sweeteners, i.e. saccharin and sugar substitutes, are not or only minimally cariogenic. As additives they are subjected to a health evaluation before approval. Though artificial sweeteners are therefore considered safe, possible long-term consequences for health are a topic of discussion, e.g. in terms of the development of caries, high blood pressure and type 2 diabetes. To what extent the preference for sweetness is increased by artificial sweeteners has not yet been clarified.

In the meantime, the topic of digitisation has assumed a very significant role in dental medicine and technology. Terms such as "Industry 4.0" or "Internet of Things" are used at almost inflationary rates even though their meanings are not always communicated clearly. For the working environment this fourth industrial revolution involves an enormous challenge and, when transferred to dental medicine and technology, Industry 4.0 refers not so much to the introduction of digitisation which has already been going on for several decades, but rather the intelligent linking of individual digital steps to form a complete working process far beyond stand-alone digital solutions. For almost two decades dental technology has been undergoing digital transformation and many parts have changed fundamentally. On the one hand, this upheaval is an enormous challenge but, on the other hand, it offers huge opportunities which can enhance the status of the profession considerably due to gaining digital competency.

In the last two decades, dentistry in Western countries has achieved a lot of advances such as: the high technology of dental equipment, the big development of dental materials, and the high standard of dental education. Also, a lot of dentists have high salaries and luxury lives. But in the same time, the dental professions, especially the new graduated dentists, face many challenges that influence on their economic, family and social life. The most important challenges are the limits of health insurance, the mid-level dental practitioners, growth and influence of corporate dentistry companies, overpopulation of dentists and hygienists, high dental school tuition, offshore dental laboratory proliferation, proliferation of proprietary dental schools, continuing growth of foreign-educated dentists, lack of qualified dental educators, young dentists' lack of interest in attending continuing education courses and many other challenges. But, if you focus on excellent patient care and proper marketing techniques, you can ensure that your dental practice is successful.

Atypical root resorption (ARR) ist the condition oft a superficial and circumferential resorption process along the lateral and/or apical root surface of a primary maxillary incisor. This case study demonstrates longitudinal observations of six patients with atypical root resorptions following root-fractured primary incisors. The characteristics of atypical root resorptions were different from pathologic root resorption.

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