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ePaper created 2018-01-31, 10:01:59 | version 1.38.0
| case report Fig. 25 Fig. 26 Fig. 27 Fig. 28 Fig. 31 Fig. 29 Fig. 30 Fig. 32 Fig. 25: Four-year follow-up: frontal view of upper anterior dentition. Fig. 26: Four-year follow-up: frontal view of smile. Fig. 27: Four-year follow-up: lateral view of upper-anterior dentition. Fig. 28: Four-year follow-up: lateral view of upper-anterior dentition. Fig. 29: Four-year follow-up: lateral view of smile. Fig. 30: Four-year follow-up: lateral view of smile. Fig. 31: Four-year follow-up: frontal view of face. Fig. 32: Four-year follow-up: lateral view of face. 7. Four-year follow-up and recheck. The restorations are as excellent as before and the margins are tightly sealed, the colour is stable, there is no margin color- ised or whole colour changing. The patient is very sat- isfied with the aesthetic performance and function. A charming smile appearance has given her more confi- dence and vigour (Figs. 25–32). Conclusions The no-preparation veneer is a kind of restoration with high precision requirement and manufactured difficulty. It is usually finished in laboratory. Getting benefit from chairside CAD/CAM techniques, immediate restorations in one appointment can be achieved; dentists can invite the patients to observe the process of restoration design and manufacture, and even get involved into the design. Patients may feel that they are participating in the treat- ment, establishing an emotional connection with the res- toration, which may also make them more easily accept and love their restoration. The value of increasing the sat- isfaction should not be ignored. Biocopy design is the combination of traditional aes- thetic design and digital virtual design. It is also the most convenient and fast technical route. Nowadays, 3-D vir- tual technique is becoming more and more established. Using 3-D techniques directly to make a virtual design may also get wonderful restoration performance, it can be predicted that this pattern will become the main- stream of digital aesthetic design in future. about Dr Feng Liu is a Clinic Professor and Vice Director of Clinical Division of Peking University School and Hospital of Stomatology. He is also the director of the Clinical Division Esthetic Dentistry Training Center and member of many scientific associations worldwide. Dr Xing Liu is a dentist, working at Peking Univer- sity Hospital of Stomatology. He is also a member of many scientific associa- tions worldwide. 20 CAD/CAM 1 2018