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22 ◊Page 20 The adhesive (Tetric N-Bond Uni- versal) was applied and dispersed with a strong stream of air. The dual- curing (DC) version of the Variolink Esthetic luting composite was used for seating due to the thickness of the crown and the low translucency of the ceramic material (Fig. 7). The luting composite was applied into the crown. Then the restoration was seated (Fig. 8) and light cured from each side for two seconds. Excess composite was easy to remove due to the Ivocerin photoinitiator, which provides a fast and thorough cure with a minimum amount of energy (Fig. 9). For final polymerization, the restoration was light-cured from each quarter for 20 seconds (Fig. 10). Figure 11 shows the oral situa- tion after placement of the crown. Although the cement line is located above the gingival margin, it is not visible due to the favourable tone and opacity of the luting com- posite. Fig. 12 shows an X-ray control image of the restoration: the radio- paque build-up material and cement can be easily told from the tooth structure. This aspect is particularly important in situation where excess cement cannot be seen with the na- ked eye. INTERVIEW Dental Tribune Middle East & Africa Edition | 1/2018 Fig. 12a and b: Lateral and occlusal view of the completed restoration Fig. 13a and b: X-ray control image before and after the treatment Conclusion The cementation methods used in conjunction with all-ceramic mate- rials have changed for single-crown restorations. Variolink Esthetic is a protagonist of the latest generation of luting composites. Excellent bond strength values coupled with user- friendly handling characteristics and highly esthetic properties make this material an asset in day-to-day den- tal restorative care. Dr Eduardo Mahn Universidad de los An- des Monseñor Álvaro del Portillo 12455 Santiago Chile emahn@miuandes.cl Dr Juan Pablo Sánchez Universidad de los An- des Monseñor Álvaro del Portillo 12455 Santiago, Chile drjpsanchez@gmail. com VladMiVa—success comes with persistence General Manager Chuev V.P. Employees of VLADMIVA company By VladMiVa VladMiVa, a large Russian holding company that unites a number of Belgorod-based companies and is invested in the development and manufacturing of materials, tools and equipment for dentistry, cel- ebrated its 25th anniversary in 2017. VladMiVa’s activities and products have not only been recognised na- tionally and by the Commonwealth of Independent States (CIS) coun- tries, but also in the global dental market, the company is known as the largest manufacturer of dental materials and instruments in Russia. On the night of the anniversary, we interviewed the founder and gen- eral manager of VladMiVa, Vladimir Chuev, who is also a doctor of techni- cal sciences and a professor and the head of the Department of Medical and Technical Systems at Belgorod State University (BSU). Prof. Chuev, tell us the story of how your enterprise began? Prof. Chuev: The critical moment when people are “on the edge” is often a decisive moment. Someone drops his hands and someone starts to act despite of their fears, difficul- ties and an uncertain future. In 1992, the state funding for the laboratory that I directed was stopped, but our developments were of an applied nature, so we could try to find use for them. I decided to create a commer- cial enterprise, invested my own sav- ings in it and convinced almost all my colleagues to stay and work with me. Our first development was very successful. In the same year, 1992, we received a silver medal from the USSR Exhibition of Achievements of the National Economy for the tech- nology we developed to manufac- ture amalgam fillings. The next im- portant step was the development of a technology for the production of dental cements for the Voronezh- based enterprise, Raduga-R. Our first success inspired our small team. VladMiVa consists of a group of companies. What kind of companies are they and which idea unites them? We very quickly realised that focus- sing only on technological develop- ment is not very promising business. Therefore, in 1994, the commercial department began its work. We start- ed with direct sales on 2m² of exhibi- tion space—that seems ridiculous today—but we managed to find our customers and see a clear picture of real consumer demand. In 1998, JSC «VLADMIVA» EXPERIMENTAL PLANT was opened. The idea of “Development—Produc- tion—Realisation”, upon which we laid the foundation of the company's activities, was soon realised. Between 2001 and 2002, we mastered the production of dental equipment and diamond burs and by 2009 we had produced more than two hun- dred kinds of products. In 2004, we opened our own dental centre, which was not only a place to confirm the high quality of our materials, but also a prime example of a world-class dental centre. The holding company today also includes Trade House, our own transport company with branches across Russia. Over the past 25 years, the num- ber of employees has grown from four to four hundred, we produce more than three hundred kinds of products and our consumers are not only in Russia, but also in more than 50 countries around the world. The main activities of the company today include the development and manufacturing of medical products for dentistry, providing raw materi- als for their development, pharma- ceutical production, the production of modern disinfectants for medical institutions, developing veterinary medicine and consumer services. Do you participate in programs with state support? What is the role of science and education in your work? The first aid that we received from the state was a small grant from the Foundation for Assistance to Small Innovative Enterprises in Science and Technology. Since 1997, we have participated in many programs of the foundation and are very grateful to its leadership for their assistance. Participation, together with the BSU, in the federal project on govern- ment’s resolution of the RF No. 218 became an interesting experience and has led to the emergence of the first Russian certified nanocompos- ite, DentLight as well as the creation of two small innovative enterprises, NANOAPATIT and Keramos-BSU. We also actively cooperate with lead- ing scientific centres, such as the Federal State Institution Central Re- search Institute of Dental and Maxil- lofacial Surgery, Dmitry Mendeleev University of Chemical Technology of Russia, Moscow State University of Medicine and Dentistry, Samara State University, I.M. Sechenov First Moscow State Medical University and Tula State Medical Academy. By 2010, the employees of VladMiVa have among them received four PhD degrees as well as a doctoral thesis. Furthermore, at the Department of Medical and Technical Systems at BSU, the nominal audience of Vlad- MiVa was opened and five schol- arships were awarded to the best students. Our dental centre is also a clinical base for these students. We want to realise one more idea, which is to further educate our young em- ployees. What about your employees today? How do you solve their social problems? Today, our companies employ a total ÿPage 23