5-Year Survival-rate of Immediate Implants After Immediate and Delayed Loading

Objectives: Immediate implantation is a treatment strategy where dental implants are inserted immediately into the bone socket following tooth extraction. The loading of these implants can occur by conventional delayed loading (usually after 3 months) or by immediate loading to shorten the entire treatment time and avoid the need of an interim prothesis. The aim of this retrospective study was to compare the 5-year survival rate of dental implants immediately placed in the anterior maxilla region after immediate or delayed loading.
Methods: Each of the 59 patients recruited for this study was treated with a single tooth implant XIVE S implants (Dentsply Implants) in the upper anterior maxilla (sextant 2; regio teeth 13-23). 27 implants were subjected to immediate loading while 32 implants were subjected to conventional delayed loading.
Results: The overall 5-year survival rate was 81.36% (48 out of 59). The survival rate of the 27 immediately loaded implants was 81.48% (n=22) and 81.25% (26 out of 32) for conventional delayed loaded implants. There were no statistically significant differences between the groups (p=0.358). Implants that failed were on average lost less than 6 months after insertion. This was due to healing problems during the osseointegration process (15.25%) or due to peri-implantitis (3.39%).
Conclusions: Within the limits of the study it can be concluded that there are no significant differences between immediate and delayed loading of implants immediately inserted after tooth extraction in the anterior region of the maxilla.