Biological complications and peri-implant clinical and radiographic changes at immediately placed dental implants. A prospective 5-year cohort study

Objectives To evaluate clinically and radiographically immediate implants 5 similar to years after insertion and to compare them with delayed-placed implants in the same subjects Material and methods Twenty-two consecutive patients that needed at least two implants for replacing hopeless teeth, one immediately upon extraction and the other in a delayed fashion (at least 4 similar to months post-extraction) were selected in this prospective cohort study. Post-extraction immediate implants (II) and delayed implants (DI) groups were defined. One and 5 similar to years after implant loading, clinical and radiographical outcome variables were recorded and analysed both at site and at implant level. Intra-group and inter-group comparisons were performed. Results The intergroup comparison did not show significant differences for plaque index, bleeding on probing and suppuration. These parameters worsen in both groups along the study. This trend was stronger for the plaque index in the group II, which increased from 15.6% at 1 similar to year to 25.9% at 5 similar to years (P similar to