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Volume 28 , Issue 6
November/December 2013

Pages 15061511

Osseointegration of Oral Implants After Delayed Placement in Rabbits: A Microcomputed Tomography and Histomorphometric Study

Sukumaran Anil, BDS, MDS, PhD/Vincent M. J. I. Cuijpers, BSc/Reghunathan S. Preethanath, MDS/Abdullah Al Farraj Aldosari, DMSc/John A. Jansen, PhD

PMID: 24278918
DOI: 10.11607/jomi.3133

Purpose: This study compared osseointegration of implants placed 14 days after implant site preparation with that of immediately placed implants in rabbit femurs. Materials and Methods: Implants were placed bilaterally in the femoral condyles of 12 rabbits. On one side, the implants were placed 14 days after osteotomy, and the other side received implants immediately after osteotomy. Healing was assessed by microcomputed tomography and histomorphometry. Results: The delayed implants (placed 14 days after osteotomy) showed better osseointegration than the immediately placed implants. Bone-to-implant contact and bone volume, as assessed by histomorphometry and microcomputed tomography, were significantly higher for the implants placed after 14 days. Conclusions: From this study, it can be concluded that early osteotomy bed preparation and placement of implants after a 2-week delay predisposes to better boneimplant interface healing.

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