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Dental Tribune United Kingdom

19Implant TribuneAugust 1-7, 2011United Kingdom Edition page 20DTà lar forms of management today. Their production in the dental laboratory is no longer fraught with the earlier difficulties of cast titanium restorations, such as an alpha case layer. Ac- cordingly, the veneering with titanium ceramic materials, made by VITA in the present case, has become much sim- pler. In a template-guided im- plant placement procedure, the axes are aligned such that the screw retentions can be imple- mented later exactly according to plan. This makes the work much easier and improves the quality of the restorations. Consequently, implant resto- rations can be achieved that are attractive to the patient owing to their reasonable pric- ing and high quality aesthetic appearance. In this case, the master im- pression was taken during the surgical session. With respect to the skull, the models were mounted in an articulator by means of face-bow transfer via the impression posts. The natural teeth were treated with NobelProcera Crowns Alu- mina, which is another CAD/ CAM-based method for fabri- cating allceramic dental res- torations. For this purpose, a framework coping and the im- plant frameworks were tried- in at the subsequent session. At the third session already, the tooth-borne crowns were incorporated and the finished implant bridges were tried-in during the same session. The definitive incorporation of the final restoration was only ef- fected after a healing time of three months though. Owing to this specific surgical and pros- thetic protocol, no additional session for try-in was required, which the patient considered very convenient (Fig 10). Case II: Management of upper and lower jaw It was easy to conclude from the initial situation of this case that the patient, a 63-year-old male, had eschewed visiting a dentist for a long time. Accord- ingly, the teeth were in need of much dental work (Fig 11). Following a comprehensive di- agnostic work-up, all teeth had to be removed, since they could not be conserved (Fig 12). The patient was phobic and well aware of the poor condition of his teeth but had not perceived an adequate treatment option for his needs in the past. Talk- ing to an acquaintance, he had been made aware of the avail- ability of surgery with a tem- plate without “cutting” and de- tailed pre-surgical planning on a PC in order to minimise the attendant risks. By his own ac- count, he would not have made the decision to have classical surgery. For the surgeon, the outcome obtained in this case would not have been possible without this technique except with much difficulty and sig- nificantly more surgical effort and trauma. Procedure according to treatment plan It is very convenient for the treatment team to be able to proceed according to a detailed plan. Each member of the team is aware of all tasks and when they need to be addressed. In particular, the prosthetic pre- surgical planning, which is of great importance, attains a completely new function as it can be compared, in a qual- ity management approach, to the final result obtained after the treatment is completed in order to determine the degree to which the plan was actually implemented. Following ra- diological digitalisation of the patient by means of a double- scanning procedure and con- version to virtual 3-D models, the surgeon can start to design the implants. In the present case, we planned to place six implants in the lower and eight in the upper jaw (Figs 13a–n). The transitional dentures re- quired after extraction of the residual teeth also served as ‘It is very convenient for the treatment team to be able to proceed according to a detailed plan’ CERECSYMPOSIUM at The Langham Hotel, London 30th September-1st October 2011 Dental Innovations and Sirona Dental Systems are pleased to invite you to the UK CEREC Symposium. We are delighted to welcome Dr James Klim (founder of www.Cadstar.org) and Dr Elmar Frank as our international guest speakers. For more details or to book your place, please call 029 2044 2818 • Extensive choice of CAD/CAM related lectures and workshops • Listen to prominent speakers of the CAD/CAM community • Fantastic CEREC networking opportunities • Build long-lasting business relationships CEREC Symposium Advert for Sirona:Layout 1 8/7/11 16:39 Page 1