engleski

Five year follow-up on usage of porous titanium granules (PTG) in implant dentistry

Background: The use of PTG in dentistry started in 1995, when porous titanium granules were successfully used to enhance bone regeneration in a ridge splitting case of a severely resorbed maxillary dento-alveolar ridge. After that, started a period of using PTG in wide field of dental application such as sinus floor augmentation, peri-implantitis treatment, onlay alveolar ridge augmentation, periodontitis treatment and socket preservation procedures. Aim: The aim of this follow-up was to evaluate the possibility of usage of PTG in everyday dental practice as a safe and predictive method for bone augmentation. Material and methods: This five years follow-up report consists of series of clinical cases such as: one-stage sinus floor elevation with simultaneous implant placement in lateral maxilla, onlay alveolar ridge bone augmentation and delayed single implant placement in mandible, bone augmentation of anterior maxilla with simultaneous implant placement and alveolar socket preservation of anterior maxilla. We used Tigran™ PTG White (Tigran, Sweden) as a bone substitute material and XIVE implants (Friadent, Germany) and OSPOL implants (Ospol, Sweden). Following the osseointegration period of 6 months second stage of implant surgery was done and healing abutments were placed. Impressions were taken 14 days after healing abutments were placed. Standard abutments were used as implant build up, and porcelain-fused-to-metal crowns with functionally shaped occlusal surfaces were fabricated. Results: Regular check-ups patients every three months during first year and every six moths during second and third year were done. Radiographs were taken before and immediately after bone augmentation and implant placement procedures, respectively, and after three and five years showed regular bone formation without significant bone loss as well as excellent aesthetic and functional results. Sinus floor elevation using PTG and single stage implant placement showed an excellent radiological result and three-dimensional stability over time. PTG, in contrast to bone grafts, are non-resorbable and thus maintain their volume during the period. Conclusions and clinical implications: The results of five year follow-up showed PTG, in contrast to bone grafts, are non-resorbable and thus maintain their volume during the period. Its specific characteristics ; commercially pure titanium, porous, irregular and non-resorbable makes it highly biocompatible, offering an exceptional environment for osteoconduction and osseointegration with predictable clinical results.

bone augmentation; porous titanium granules; dental implants

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