Abstract
Our aim was to evaluate the effects of lateral cortical anchorage on the primary stability
of implants subjected to immediate loading. Implants were placed into bovine bones
with monocortical anchorage (implant placed through the cortical bone of the crest)
and bicortical anchorage (the crest cortical bone plus one cortical bone on the lateral
side). Loads of 25 N and 50 N were applied to the implants in different cycles. The implant stability quotient
(ISQ) was measured before and after the cyclic loadings. Under 25 N load there was no difference in ISQ between 1800 cyclic loading and preloading,
but the values decreased significantly after 3600 cyclic loading in both groups (p < 0.05). Under a 50 N load the ISQ value after 1800 and 3600 cyclic loading decreased in the monocortical
group (p < 0.05), but there was no difference between 1800 cyclic loading and preloading in the
bicortical group, and the ISQ in the bicortical group was higher than in the monocortical
group after 1800 cyclic loading (p < 0.05). Our results suggest that the stability of implants with bicortical anchorage
decreased more slowly under higher loads.
Keywords
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Article info
Publication history
Published online: February 10, 2011
Accepted:
January 17,
2011
Identification
Copyright
© 2011 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
