Effect of Simultaneous Immediate Implant Placement and Guided Bone Reconstruction with Ultra-Fine Titanium Mesh Membranes on Radiographic and Clinical Parameters after 18 Months of Loading

Abstract

in total, seven patients (five women, two men) with a mean age of 52.7 ± 20.3 years (range: 27-71) received 10 self-tapping tapered implants and simultaneous guided bone regeneration with ultra-fine titanium mesh membranes. No implants and no prostheses failed during the entire follow-up period. One slightly membrane exposure was observed one month after implant placement in one patient. The mean marginal bone loss (MBL) at implant loading was 0.13 ± 0.09 mm (95 % CI 0.08-0.19). At the 18-month follow-up examination, the mean MBL was 0.28 ± 0.33 mm (95 % CI 0.07-0.50) The difference was not statistically significant (0.15 ± 0.31; 95% CI 0.05-0.35; P = 0.1888). The mean horizontal alveolar ridge width was 3.72 ± 1.08 mm (95% CI 3.22-4.22 mm). At the II-stage surgery, the mean bone width was 8.79 ± 0.98 mm (95% CI 8.51-9.07 mm). The mean bone gain was 5.06 ± 1.13 mm (95% CI 4.68-5.44 mm; P = 0.000). The mean volume of the grafted bone calculated using the superimposition technique was 0.99 ± 0.38 CC (95% CI 0.75-1.23 CC). The mean PES at implant loading was 8.2 ± 0.8 mm (95 % CI 7.7-8.7). At the 18-month follow-up examination, the mean PES was 12.0 ± 0.7 mm (95 % CI 11.5-12.5) The difference was statistically significant (3.8 ± 0.4; 95 % CI 3.5-4.1; P = 0.0000); Conclusion: with the limitation of the present prospective study, the guided bone reconstruction using an ultra-fine titanium mesh membrane with simultaneous implant placement seems to provide good and stable results in implant/prosthesis success. Further research with a longer follow-up and a higher sample size are needed to confirm the results from this preliminary report.