MODIFIED CLINICAL APPROACH FOR IMPROVED AESTHETICS IN FULL-ARCH RESTORATION
Figure 1 . The platform-switching design of the implants facilitated preservation of bone at the collar and the gaining of supra-crestal fibres
Figure 2 . Concave profile of the provisional abutment .
Figure 3 . Convex profile of the final individual abutment
higher the peri-implant soft tissue , the lower the risk of bone loss in the process of increasing the biological width . 8 Through decreased bone loss and a resulting reduction in bone instability , as well as increased thickness of the tissue , more supra-crestal fibres can be gained ( Fig . 1 ). Owing to this concept in designing the provisional abutment , the final abutment and the crown , we were able to manipulate the soft tissue and gain an inter-implant papilla length comparable to the length of the papilla between two natural teeth ( 5 mm ).
3 . Abutment The running room for the provisional abutment
Figure 4 . Narrow triangles between the final crowns , restoring the physiological and aesthetic contact points
was concave ( Fig . 2 ). 9 After osseointegration , we modified the running room to a straight or slightly convex profile , especially approximally . The tissue extended from 0.5 to 1 mm in the direction of the contact point ( Fig . 3 ). The final construction followed the natural parameters of the interdental contact points in the natural dentition , as defined by Chu et al . 10 Designing the interdental spaces as narrow triangles with slight convexities , we managed to guide this tissue by another 0.5 to 1 mm to the ideal contact point , and give the entire construction a natural appearance ( Fig . 4 ).
4 . Clinical case
A 50-year-old patient presented a tooth mobility of Grade II to III ( Fig . 5 ). He wished to have his
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