engleski

Sinus lift procedure using trans-alveolar approach with bone substitutes in the regeneration of lateral maxilla

Aim: A pronounced resorption of the lateral maxilla is quite often clinical situation. Sinus grafting with lateral window approach is demanding and advanced surgical technique associated with many surgical risks. Healing time is longer and adequate quantity of the autologus bone and/or bone substitutes is necessary. Trans-alveolar, osteotome, technique is much simpler and efficient method for bone regeneration of the lateral maxilla. This method reduces surgical risk and shortens treatment time. Material and Methods: 100 Astra Tech implants where placed in lateral maxilla with minimum bone height of 5 mm. Osteotome technique was performed using osteotome instruments and bone substitutes (Cerabone - bovine bone mineral, granulation size 1-2mm and Maxresorb - synthetic bone substitutes 60%HA / 40%B-TCP, 0.8-1.5mm ; Botiss, Germany). CBCT analysis was performed immediately after surgery and 4 month later. ISQ measurements (Ostell) were performed. Results: From 100 inserted implants, 4 implants was not integrated. This mean that integration rate is 96%. ISQ measurements show average value of 73.6 , witch mean that implants could be loaded after 4 months healing time period. CBCT volumetric analysis show 3-dimensional image of bone substitutes around implants and volumetric changes during the healing time. Conclusion: Trans-alveolar sinus grafting using osteotome technique is simple and efficient method for bone regeneration of the lateral maxilla where residual bone height is at least 5 mm. This method reduces surgical risk, shortens treatment time and simplifies implant rehabilitation. This procedure made sinus augmentation more

sinus lift; periodontal regeneration; bovine bone mineral

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