Maxillary sinus floor elevation using hydroxyapatite nano particles vs tenting technique with simultaneous implant placement: A randomized clinical trial.

Abstract

PURPOSE\nThe present study was conducted to evaluate the amount of bone height gain, density values, and implant stability after maxillary sinus floor elevation using graftless tenting technique or the use of Hydroxyapatite Nanoparticles bone substitute for augmentation with simultaneous implant placement.\n\n\nMATERIALS AND METHODS\nA total of 20 sinuses with a residual alveolar bone height ranging from 4-6\u2009mm were divided into two groups and underwent sinus augmentation using nano hydroxyapatite bone substitute material and the graftless tenting technique with simultaneous implant placement. Computed tomography CT scans and ISQ measurements were conducted to evaluate bone quality, quantity, and implant stability.\n\n\nRESULTS\nRadiographic analysis revealed that the mean bone height gain of the nano group was (7.0 ±\u20090.8\u2009mm) compared to (5.0 ±\u20091.5\u2009mm) in the tent group, which was statistically significant (P =\u2009.002) being higher in the nano group. The mean bone density value of the nano group was (548\u2009±\u200925 HU) compared to (420\u2009±\u200923 HU) in the tent group, which was statistically significant (P <\u2009.001) being higher in the nano group. The mean ISQ value after 6 months in the nano group was (78\u2009±\u20095) compared to (77\u2009±\u20095) in the tent group, which was statistically nonsignificant (P =\u2009.901).\n\n\nCONCLUSION\nNano hydroxyapatite bone graft offered superior results in terms of the bone height gain and the relative bone density as compared to graftless tenting technique. However, both techniques showed accepted results regarding implant stability.