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Implants
Nobel Replace 'loosening'
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<blockquote data-quote="Joshua" data-source="post: 34917" data-attributes="member: 3001"><p>It's a little different than using the screw twice. The initial loss of torque is thought to be due to "settling effect" - surface imperfections (roughness) are smoothed as the surfaces are clamped together from the initial tightening, with a resulting loss of preload. By waiting 10 minutes for this settling effect to occur and tightening to the desired torque a second time you can counter this loss of preload. This, along with some of the other above suggestions, might help.</p><p></p><p>BTW, there's not much about settling effect in the literature, but I did find this:</p><p><img src="/forums/images/smilies/test/wink.gif" class="smilie" loading="lazy" alt="Wink" title="Wink Wink" data-shortname="Wink" />ler et al J Oral Implantol 2003 29(5) 242-5.</p></blockquote><p></p>
[QUOTE="Joshua, post: 34917, member: 3001"] It's a little different than using the screw twice. The initial loss of torque is thought to be due to "settling effect" - surface imperfections (roughness) are smoothed as the surfaces are clamped together from the initial tightening, with a resulting loss of preload. By waiting 10 minutes for this settling effect to occur and tightening to the desired torque a second time you can counter this loss of preload. This, along with some of the other above suggestions, might help. BTW, there's not much about settling effect in the literature, but I did find this: Winkler et al J Oral Implantol 2003 29(5) 242-5. [/QUOTE]
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Nobel Replace 'loosening'
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