Future Dental Journal of Egypt


Background: Rehabilitation of edentulous posterior maxilla with dental implants is a challenging problem in oral and maxillofacial surgery due to alveolar resorption and excessive pneumatisation of maxillary sinus. This study was designed to compare the efficacy of Putty Versus Powder Form of Demineralized Bone Matrix (DBM) augmented in lifted maxillary sinus in atrophied posterior maxilla with evaluating the implant stability simultaneously placed with both of them. Patients and Methods: sixty four implants were placed in twelve patients in the period between 2013 and 2016. Lateral approach, open window method for sinus lift with peizosurgical unit and placement of Putty or Powder Form of DBM were carried out simultaneously with implant placement. The implant success was defined when the prosthesis had been delivered and followed for 18 months without infection, pain, marginal bone loss and the implant stability quotient (ISQ) of each implant was measured using resonance frequency analysis. Results: Radiographic bone formation was evident in all 12 patients, and all implants were stable after 18 months of placement. No statistically significant differences were observed in marginal bone loss around the implants between the powder and the putty groups at 6 months (p ¼ 0.60), 12 months (p ¼ 0.85) and 18 months (0.49). The difference between ISQ values in both groups was only significant at the baseline (p ¼ 0.023). Conclusion: Sinus lifting with simultaneous implant placement could be used to treat atrophic maxilla with initial stability obtained by using taper designed implants and with minimal intraoperative complication susing peizosurgery. No statistically significant differences in the stability were observed between implants placed with both putty and powder forms of DBM.