Abstract:
Objective To investigate the primary stability of aggressive thread design implant comparing to nonaggressive thread design implant and to evaluate the correlation between ISQ values and IST values. Materials and methods 96 implants were used in this study. 48 BLT Straumann® and 48 BLX Straumann® were used. All implants were digitally planned and placed in 3D printed model using computer assisted guided surgery. The edentulous area at models were packed with randomized pattern of four different kinds of polyurethane blocks to replicate mixed cancellous bone. Postoperative implant stability measurement was performed immediately after implant insertion. Implant stability was measured by Osstell ISQ for ISQ value and AnyCheck for IST value. The data was analyzed using Spearman correlation and Mann-Whitney U test. Results The mean ISQ value was 67.87 and 65.87, for BLX and BLT respectively. While, the mean IST value was 71.30 for BLX and 69.25 for BLT. The primary stability between BLX and BLT found no statistically significant difference in both ISQ value and IST value. There was a significant correlation between ISQ value and IST value. Conclusion The aggressive thread design implant (BLX) and nonaggressive thread design implant (BLT) has no statistically difference in both ISQ and IST groups. Moreover, there was a correlation between ISQ and IST in both implant design.
