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ePaper created 2016-12-07, 11:04:42 | version 1.38.0
dentistry 4_2016 cosmetic 22 Fig. 24_Two weeks after placement of the provisional restorations, the gingival contour had begun preliminary remodelling and the margin of the abutment teeth had been exposed. Fig. 25_Gold alloy cast post and core. Figs. 26 & 27_The second provisional restorations with advanced gingival contour remodelling. Fig. 28_Two weeks after placement of the second provisional restorations with advanced modification. Fig. 29_Four weeks after placement of the second provisional restorations. The gingival contour and the shape of the crowns were satisfactory. of both central incisors were located on the palatal side of the red line (wet–dry border) of the lower lip; hence, the position of the incisal edges was to be shifted 2 mm to the labial side. Furthermore, in order to improve the patient’s deep overbite and large overjet, we decided to shift the incisal edges of the maxillary central incisors by 2 mm in the vertical direction, where the lip–teeth relationship could still tolerate changes palatally. According to the varied gingival sulcular depth, in order to protect the connective ep- ithelium of the gingival sulcus, the top of the gingival line of the maxillary right lateral inci- sor, maxillary right central incisor and maxillary left central incisor would be shifted in the api- cal direction by 2.5 mm, 0.7 mm and 2.5 mm, respectively. The entire restoration would be inclined to the labial side by 1.5 to 2 mm so that the palatally inclined roots would not interfere with the aesthetic outcome (Figs. 9-14). _Tooth preparation and provisional restoration According to the diagnostic wax-up, two sil- icone indices were fabricated. One of the indices was cut in the labiolingual direction to guide the preparation of the abutment teeth. The margin of the prostheses was designed to be placed 0.5 mm subgingivally (Figs. 15-17). The provisional Fig. 24 Fig. 26 Fig. 28 Fig. 27 Fig. 29 Fig. 25 case report _ shaping the gingival contour