Two mandibular splinted implants offer better denture support and load distribution.
Methodology: completely edentulous patients divided into two groups receiving two implants at canine region splinted by bar, group I (two-piece implant) and group II (one-piece implant). Radiographic assessment of marginal bone loss mesially and distally to implants in both groups was measured using Digora software.
Purpose: was to evaluate and compare the effect of using one -piece versus two-piece implants with bar retaining mandibular overdentures on the crestal bone loss.
Results: A statistically significant increase of marginal bone loss after 3,6,9 and 12 months within each group and also between the one-piece and two- piece implant groups favoring the one- piece group which gives less crestal bone loss.
Conclusion: within the limitation of this study it was concluded that: both implant systems reveal high success rate and within range crestal bone loss over a one-year follow-up study but in favor of the one-piece implant design.