CAD/CAM – international magazine of digital dentistry No. 3, 2017

| industry report metal-free restorations Fig. 21 Fig. 22 Fig. 23 Fig. 24 Fig. 25 Fig. 26 Fig. 27 Fig. 28 Fig. 29 Fig. 30 Fig. 33 Fig. 31 Fig. 32 Fig. 34 Fig. 21: Panoramic view of a 59-year-old female patient with pronounced mandibular atrophy (class VI) after 64 months of wearing the prosthesis. – Fig. 22: Lateral cephalometric radiography. – Fig. 23: Intraoral view with mandibular prosthesis. The image was taken after 64 months of wearing the prosthesis. – Fig. 24: Intraoral view after 64 month of wearing the prosthesis. – Fig. 25: Lateral cephalometric view. – Fig. 26: Panoramic radiograph of a 69-year-old patient with extreme maxillary atrophy (class VI). – Fig. 27: Frontocranial view of a 12-piece prosthesis. – Fig. 28: Intraoral view of a positioning splint. – Fig. 29: Intraoral mirror radiograph of the 12-piece prosthesis. – Fig. 30: Situation after 39 months. – Fig. 31: Panoramic radiograph after 39 months of wearing the prosthesis. – Fig. 32: Screw-retained TRINIA construction on the plaster model. – Fig. 33: Twelve-piece screw-retained prosthesis. – Fig. 34: Retentive and passive (middle) telescope caps. Therefore, the statistics of mandibular prosthetics show 100 per cent success for these 16 patients. The next 69-year-old patient suffers from extreme maxillary atrophy class VI.7 In such extreme cases, they used to perform Horseshoe Le Fort I osteotomy using interpositional bone grafts from the iliac crest —a very complex surgery under endotracheal anaes- thesia.13,14 We, in contrast, inserted two 4.0 x 5.0 mm short and two 3.0 x 8.0 mm Bicon implants in a very brief procedure under local anaesthesia (Fig. 26). Twelve-piece TRINIA prostheses were integrated in the maxilla too (Fig. 27). To position the abutments easier, you can use a positioning splint made of light- cure GC plastic, on which the dental technician indi- cates the most favourable insertion sequence for the abutments (Fig. 28). The patients enjoy prosthetics that leave the palate free (Fig. 29). The prosthesis is either cemented, screwed or telescoped via the four abutments. The follow-up after 39 months resulted 36 CAD/CAM 3 2017

Pages Overview

• Page 1
• Page 2
• Page 3
• Page 4
• Page 5
• Page 6
• Page 7
• Page 8
• Page 9
• Page 10
• Page 11
• Page 12
• Page 13
• Page 14
• Page 15
• Page 16
• Page 17
• Page 18
• Page 19
• Page 20
• Page 21
• Page 22
• Page 23
• Page 24
• Page 25
• Page 26
• Page 27
• Page 28
• Page 29
• Page 30
• Page 31
• Page 32
• Page 33
• Page 34
• Page 35
• Page 36
• Page 37
• Page 38
• Page 39
• Page 40
• Page 41
• Page 42
• Page 43
• Page 44
• Page 45
• Page 46
• Page 47
• Page 48
• Page 49
• Page 50
• Page 51
• Page 52
• Page 53
• Page 54
• Page 55
• Page 56
• Page 57
• Page 58
• Page 59
• Page 60
• Page 61
• Page 62
• Page 63
• Page 64