Australasian Dentist Magazine March April 2021

Category 86 Australasian Dentist in the regions of teeth #15 and #25. Three BLT SLActive® implants (RC, 4.1mm in diameter, 10mm) were placed in the regions of teeth #12, #21 and #22, both with torques greater than 60Ncm (Fig. 13). Two screw-retained abutments 4.6 x 4.0mm on implants in the regions of teeth #12 and #21, one Straumann® screw- retained abutment 4.6 x 2.5 mm in the region of tooth #22 and two Straumann® screw-retained abutments 4.6 x 4.0mm angled 17 degrees in the regions of teeth #15 and #25. Then, the multifunctional guide was placed in position to check the correct position of the implants and abutments (Fig. 14). Prosthetic procedure The patient received the prosthesis on the same day of the surgery. Temporary titanium cylinders were used to capture the patient’s removable prosthesis using the Straumann® Pro Arch concept (Figs. 15-17). After a period of 1 year and 6 months, intraoral scanning was performed using the Straumann® Virtuo Vivo™ (Dental Wings, Montreal, Canada) (Figs. 18-20). The metal bar was designed using the CAD/CAM Straumann® CARES system and placed in the mouth to test the adaptation (Fig. 21-22). The prosthesis was completed following the laboratory steps. The occlusal screws were torqued to 15Ncm and the occlusion was adjusted to have uniform contacts in centric relation and balanced occlusion in excursion movements, and finally, the access holes for the screws were filled (Figs. 23-24). Two years after surgery, clinical and radiographic control was performed. The prosthesis was removed, the implants were tested individually, and postoperative radiographs were performed, with good bone stability (Figs. 25-28). Treatment Outcome In this case, the use of several digital tools, such as virtual planning, printing of a surgical guide, intraoral scanning and milling of a metal bar, helped in an important way in the treatment. It has been observed that the Straumann® guided surgery system provides a high level of accuracy for implant placement purposes. The tools of the Straumann® CARES system helped in the prosthetic restoration stage. u Figs 15-17. The patient received the fixed prosthesis on the same day of the surgery. Temporary titanium cylinders were used to capture the patient’s prosthesis using the Straumann®Pro Arch technique. Figs 18-19. Intraoral scanning was performed using the Straumann®Virtuo Vivo™. Figs 20-22. The metal bar was designed using the CAD/CAM Straumann®CARES system and was placed in the mouth to check the adaptation. Figs 23-24. The prosthesis was completed following the laboratory steps. The occlusal screws were torqued to 15Ncm and the occlusion was adjusted. Figs 25-28. Two years after surgery, clinical and radiographic control was performed. Fig 15 Fig 16 Fig 17 Fig 18 Fig 19 Fig 23 Fig 20 Fig 24 Fig 21 Fig 22 Fig 25 Fig 27 Fig 28 Fig 26 clinical