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rehabilitation of edentulous maxilla industry report | in. The counter bar was modelled with the castable Rhein’83 OT box inserted on the threaded Micro Spheres attachments, creating the housings for the retentive caps. The subsequent laboratory steps, the cast, the finishing, the polishing and the insertion of the retentive caps were performed to complete the frame (Figs. 19–24). The secondary bar was embedded in the teeth as- sembly, using a silicone template previously made; the teeth were positioned one by one and adapted to make them engage with the retentions of the second- ary bar. The flanges were modelled in the marginal gingival area using the Candulor modelling wax of medium hardness (Figs. 25–27). An oral try-in of the work was done by screwing the primary bar and then inserting the prosthesis mounted on the secondary bar for a final test before the resin curing to verify the stability, retention, chewing, pho- netic and support of the lips. A frontal, left and right side photograph were taken in order to carefully exam- ine the harmony of the facial tissues (Figs. 28–30). The model was prepared for the muffle technique by bathing it in water at a temperature of about 35 degrees. The base of the muffle was produced with a hard plaster. The flange models and the teeth were protected with a 90 Shore hardness silicone before completing the filling of the muffle with the hard plaster muff before final hardening at 50 bar (Figs. 31–33). After 60 minutes, the muffle was put in boiling water to open the mould. The whole surface was degreased by vapour and immersed in water at 35 de- grees for 10 minutes. Once the retentions of the teeth were isolated and prepared, the flanges were pro- duced by stratifying the Aesthetic resinous masses (Candulor) with a colouring of 53 for the collar edges and 34 for the fixed gingiva, and an intense red to characterise the alveolar mucosa (Figs. 34–36). After the resin was finished, the muffle was closed and locked in a press bar at 80 bar; the subsequent polymerisation of the resin was performed at 50 de- grees for 20 minutes at three atmospheres. At the end, the muffle was opened and the prosthesis was finished and polished. The laboratory caps were replaced with the “extra soft” yellow OT Cap Micro caps Rhein’83 and the work delivered. In co-operation, the team carried out the final checks in the oral cavity paying attention to the stability, chewing and phonetics. The patient was in- structed to use the prosthesis and to clean it by using primer bar cleaners and brushes with detergents for the prosthesis (Figs. 37). Conclusions The patient was satisfied with the performance received from the whole team. Within a few hours of delivery, he reported having good phonetics, very good chewing efficiency and finally noticed a good harmony of his face. After six months of delivery, the patient still looked happy and smiling for the successful rehabilitation (Figs. 38–42) This is our team’s goal: “Rehabilitate the chewing function by combining aesthetics that in our day seems to have become the primary problem for our patients.”_ contact Dr Francesco Benvenuto graduated in 2003 at the University of Brescia. Faculty of medicine degree in dentistry. He undertook an internship at the University Clinic. His experimental thesis on microinfiltration of fiber pins with Prof. Cerutti was published in IADR (International Accademy Dental Restorative). He frequents the conservative and endodontic department as a tutor where he is performing cases using the surgical microscope. SIE partner (an Italian endodontics company) is a student interested in orthogonal and surgical and restorative aesthetic endodontics, attending numerous courses and congresses. ITI (International Team of Implantology) is dedicated to the periodontal implant and regenerative surgery with the attention to implant replacement of individual dental elements and soft tissue management with periodontal plastic techniques. Annual course with Prof. Zucchelli in clinical and surgical periodontology and mucogengival aesthetics. S.D.A. Studi Dentistici Associati S.r.l. Calcinate www.essedia.it Giorgio Poma, dental technician graduated in 1999 at the Leonardo da Vinci Professional Institute for Dental Technology in Bergamo. In 1999 he attended the “Total Prosthetic Complete Method” course at the Ivoclar Center in Naturno with the Speak- er Tocco Antonio. Since 2009 he has worked as an employee at the S.D.A. Studi Dentistici Associati S.r.l. and specialises mainly in total and removable dentures. From 2013 to 2015 he partici- pated in various courses organised by Candulor with the speaker Odt. Ivano Bortolini. In 2016 he participated in the course organised by Merz Dental with rapporteur Odt. Giorgio Garuffo. He attends the course “The Implant Support Facility” organised by Odt. Carlo Borromeo. Participate in Basic and Master courses at Rhein’83. At the end of 2016 he started a collaborative relationship with Rhein’83 where he realised for the first time in Bologna at the course “Modern techniques in removable prosthesis, Cad Cam and implantology master course” addressed to Dental Technicians and Dental Professionals. Since 2017 he has been working as an employee at the Techno Dent Laboratory of Calcinate (BG). He collaborates with Dentistry in the province of Bergamo, Brescia, Monza Brianza and Catania. Publication on “Teamwork Clinic” of June 2016 entitled “Overdentures on distal bars with micro threaded retentions”. Laboratorio Techno Dent S.r.l. Calcinate giorgio.poma@essedia.it CAD/CAM 4 2017 41