Implant placement and tooth restoration in the maxillary esthetic zone is challenging. In the case reported here, the treatment site was tooth # 8, which had been extracted one year previously. Available bone in three dimensions was evaluated by computerized tomography. The bucco-lingual bone width at the crest was 3 mm to 4 mm wide, an inadequate width for implant placement. Ridge expansion wa...

three unconventional details for plastic hinges of bridge columns subjected to seismic loads were developed, designed, and implemented in a large-scale, four-span reinforced concrete bridge. shape memory alloys (sma), special engineered cementitious composites (ecc), elastomeric pads embedded into columns, and post-tensioning were used in three different piers. the bridge model was subjected to...

Objectives: Cuspids migrated medially into the position of lateral incisors create unpleasant esthetic appearances. This kind of a situation and the related disturbances such as the diastemas and the positional and/or proportional irregularities, create major challenges in front of the dental practitioners. Materials and Methods: The diagnostic additive wax-up, gingival esthetic recontouring, v...