Box 1. Maxillary tissue thickening / O Zuhr --Lateral window sinus floor elevation with simultaneous implant insertion (Piezo surgery) / M. Hürzeler --Extraction implant insertion with lateral augmentation using autogenous bone and bio-oss (extension flap) / M. Hürzeler --Second stage implant surgery in maxilla and mandible with split-thickness flap and free mucosal graft / M. Hürzeler --Implant insertion with internal sinus floor elevation --Summer technique --left maxilla / H. Wachtel --Box 2. Implant insertion with internal sinus floor elevation --Summer technique --right maxilla / H. Wachtel --Alveolar ridge augmentation with palatal connective tissue graft / H. Wachtel --Recession coverage with coronally advanced flap / O. Zuhr --The apically repositioned flap / M. Hürzeler --Procedure: esthetic crown lengthening / O. Zuh --Procedure: Papilla augmentation / O. Zuhr -- Box 3. GTR with double split-thickness flap, emdogain and autogeneous bone / H. Wachtel --Procedure: simple implant placement in the posterior mandible / M. Hürzeler --Procedure: single implant placement in the posterior mandible / M. Hürzeler --Single recession defect / O. Zuhr --Soft tissue augmentation in the mandible, teeth 12 and 22 / H. Wachtel --The access flap with the enamel matrix protein emdogain / H. Wachtel.