Five-year follow-up of wide-diameter implants placed in fresh molar extraction sockets in the mandible: immediate versus delayed loading.

Loris Prosper, Roberto Crespi, Edoardo Valenti, Paolo Capparé, Enrico Gherlone

Research output: Contribution to journalArticle


PURPOSE: The aim of this study was to compare the long-term success rates of wide-diameter implants in the mandibular molar region placed immediately after extraction and loaded either immediately or after a 3-month healing period. MATERIALS AND METHODS: In 71 patients, 120 implants were positioned immediately after tooth extraction; 60 implants (immediate loading group) were loaded immediately and 60 were loaded after 3 months (delayed loading group). Radiographic examinations were made at baseline and at 1, 2, 3, 4, and 5 years after implant placement. RESULTS: After 5 years, a survival rate of 96.67% was reported for all implants (failure rate, 3.33%). Four implants were lost, two from the immediate loading group and two from the delayed loading group. There were no patient dropouts in either group. CONCLUSIONS: Wide-diameter implants placed in fresh extraction sockets and loaded immediately or after a delay showed no significant clinical or radiographic differences after 5 years.

Original languageEnglish
Pages (from-to)607-612
Number of pages6
JournalThe International journal of oral & maxillofacial implants
Issue number3
Publication statusPublished - May 2010


ASJC Scopus subject areas

  • Oral Surgery

Cite this