| Popis: |
We present an implant-prosthetic solution of the case with edentulous lower jaw in a patient treated several years at the University of Zagreb School of Dental Medicine because of an odontodysplastic syndrome, which resulted in multiple tooth retention within the alveolar ridge. Alveolotomy of the retained lower canines and incisors was performed under general endotracheal anaesthesia. Due to large residual bone defects after surgery, augmentation was performed using xenogenic bone material and growth factors obtained from autologous patient blood (PRGF technology). After supplying the patient with temporary prosthesis in the lower jaw, a CBCT image of the jaw and prosthesis was made with radiopaque markers that allowed the two images to be merged in a specially developed program for making surgical templates. After detailed planning of the implant placement that followed prosthetic principles, a surgical template was created using the 3D printing process. Surgical templates are used so that the planned implant position on the CBCT imaging can be accurately transferred to clinical conditions. This enables minimal tissue trauma during implant placement and the implant placement procedure is significantly shortened. Detailed planning avoids possible surgical and prosthetic complications. The peculiarities of the innovatively designed and constructed surgical templates are the elimination of potential disadvantages that can be encountered with other surgical templates, such as insufficient cooling of the drill when preparing the implant site, opacity of the surgical field and the need for using special sets of drills made by individual manufacturers solely for this purpose, which significantly increases the cost of using surgical templates. After the insertion of dental implants, fixed prosthetic replacement was made on four implants. |
