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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


Winter 2012
Volume 5 , Issue 4

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Immediate loading of single implants inserted flapless with medium or high insertion torque: a 6-month follow-up of a split-mouth randomised controlled trial

Cannizzaro, Gioacchino / Leone, Michele / Ferri, Vittorio / Viola, Paolo / Federico, Gelpi / Esposito, Marco

Pages: 333 - 342
PMID: 23304687

Purpose: To compare the outcome of immediately loaded single implants inserted with medium (from 25 to 35 Ncm) or high insertion torques (>80 Ncm).
Materials and methods: Fifty patients received two single non-adjacent implants, each randomly inserted flapless with a torque between 25 to 35 Ncm or >80 Ncm according to a split-mouth design. Non-occluding temporary crowns were immediately placed on provisional abutments and definitive crowns were delivered after 6 weeks. Patients were followed for 6 months after initial loading. Outcome measures were crown/implant failures, complications, peri-implant marginal bone level changes, postoperative pain and presence of peri-implant apical radiolucency.
Results: No drop-out occurred. Seven implants inserted with a torque between 25 to 35 Ncm failed versus none of the implants inserted with a torque >35 Ncm. With the exception of crown/implant failures (exact McNemar significance P = 0.0156, difference in proportions: -0.12; 95% CI -0.21 to -0.02) there were no statistically significant differences between groups for the other outcome measures.
Conclusions: It is preferable to insert single implants with a high insertion torque (>80 Ncm), to minimise early implant failures, when loading them immediately.

Keywords: dental implants, immediate loading, insertion torque, success

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