Immediate implant placement and restoration in infected sites.

The long-standing assumption that active infection is a contraindication for immediate implant placement has been challenged recently. High implant survival rates have been reported even when implants were placed immediately in infected extraction sockets and provisionalized within 36 hours. To further evaluate the impact of nonocclusal loading on implants placed in cleaned periodontically or endodontically infected extraction sites, this retrospective study examined the results of 77 implants placed in 63 patients and followed for between 3 and 24 months.