Australasian Dentist Magazine March April 2021

Category 84 Australasian Dentist T his case describes the rehabilitation of edentulous upper arch using digital planning, coDiagnostiX™ software and the Straumann® Guided Surgery system, facilitating the surgical procedure and favouring prosthetic rehabilitation. Initial situation A female patient, age 52, sought dental care with the aim of replace the upper removable prosthesis. (Figs. 1-2). The patient was unsatisfied with the low retention and aesthetics. The patient requested an immediate and fixed option to improve masticatory function. Fig 7. Toothless upper jaw initial aspect. Fig 8. The drill guide was stabilized using a bone grafting screw on the palate and two fixation pins on the buccal bone. Figs 9-12. The sequential osteotomy preparation was completed to depth through the Straumann®BLT Guided Surgery tools. Fig 13. The Straumann®BLT fully guided implant placement. Fig 14. The multifunctional guide was placed in position to check the correct position of the implants and abutments. Full-arch rehabilitation with Straumann®Pro Arch and Digital Workflow clinical A clinical case report by Jean Uhlendorf and Marcos Boaventura de Moura, Brazil Fig 3 Fig 5 Fig 4 Fig 6 Figs 3-5. coDiagnostiX ™ virtual planning: the strategy was to circumvent the right and left maxillary sinus with tilted and long implants and seek apical anchoring in the lower cortex of the nasal fossa. Fig 6. Design of the drill guide. Fig 1. Initial tomography of the toothless patient. Fig 2. Initial removable prosthesis. Procedure Treatment planning The initial treatment plan involved the placement of BLT Straumann® dental implants to support an upper fixed hybrid prosthesis. The patient was referred for computed tomography using a double scan protocol with coDiagnostiX™ (Dental Wings, Chemnitz, Germany) (Figs. 3-5). The strategy of the virtual planning was to circumvent the right and left maxillary sinus with tilted and long implants and seek apical anchoring in the lower cortex of the nasal fossa, using a predictable, simple and accessible procedure for the patient, following the Straumann® Pro Arch concepts. The drill guide was designed and exported for 3D printing, being a tool to improve the positioning of the implants (Fig. 6). Fig 7 Fig 8 Fig 9 Fig 10 Fig 11 Surgical procedure Bilateral local anaesthesia was performed. The drill guide was stabilized using a bone grafting screw on the palate and two fixation pins on the buccal bone (Figs. 7-8). The sequential osteotomy preparation was completed to depth through the Straumann® BLT Guided Surgery tools (Figs. 9-12). Two BLT SLActive® implants (RC, 4.1mm diameter, 14mm) were placed Fig 12 Fig 13 Fig 14