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European Journal of Oral Implantology

Editor in Chief: Dr. Marco Esposito

Official publication of the British Society of Oral Implantology (BSOI), Italian Society of Oral Surgery and Implantology (SICOI), Danish Society for Oral Implantology (DSOI), German Association of Oral Implantology (DGI), Spanish Society of Implantology (SEI), British Academy of Implant & Restorative Dentistry (BAIRD) and Advanced Dental Implant Research & Education Center (AIC)

ISSN (print) 1756-2406 • ISSN (online) 1756-2414


Summer 2012
Volume 5 , Issue 2

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Immediate versus early loading of 6.5 mm-long flapless-placed single implants: a 4-year after loading report of a split-mouth randomised controlled trial

Cannizzaro, Gioacchino / Felice, Pietro / Leone, Michele / Ferri, Vittorio / Viola, Paolo / Esposito, Marco

Pages: 111 - 121

Purpose: To evaluate the medium-term effectiveness of 6.5 mm-long flapless-placed single implants immediately or early loaded at 6 weeks.
Materials and methods: Thirty patients received two single NanoTite external hex Biomet 3i implants each, which were then randomly allocated to be immediately or early loaded according to a splitmouth design. Implants had to be inserted with a minimum torque of >40 Ncm. Provisional crowns were put in slight occlusal contact and replaced by definitive crowns 3 months after loading. Patients were followed for 4 years after loading. Outcome measures were implant failures, biological and biomechanical complications, peri-implant marginal bone level changes, and patient preference.
Results: Twenty-nine implants were immediately loaded and 31 early loaded. Four years after loading, no drop-outs occurred. One implant failed in each group within 2 months after loading. Seven patients experienced complications at immediately loaded implants and 6 at early loaded implants. There were no statistically significant differences between groups for implant losses, complications, mean marginal bone level changes and patient preference.
Conclusions: Flapless-placed 6.5 mm-long single implants can be immediately loaded and remain successful up to 4 years after loading. Even longer follow-ups are still needed to evaluate the longterm prognosis of short implants.

Keywords: dental implants, early loading, flapless, immediate loading, short implants

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