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The BDT Technique bridge
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<blockquote data-quote="zero_zero" data-source="post: 259592" data-attributes="member: 9932"><p>Pressed would work for cases which are difficult to mill because of their geometry, otherwise I'd prefer milled...at least you're cutting from a homogeneous stock. I'd say they are par strength wise...milled could be a bit stronger tho. Pressed could be cheaper to produce since you don't have to invest in an expensive disk(s). Peek can flex a lot, so it doesn't have to be strong as a metal bar per se, yet still could function. The screws are tightened against a Ti insert, so it can be torqued down.</p><p></p><p></p><p></p><p>The flex in the peek substructure does act like a shockabsorber, if it's designed properly will not wiggle the Ti inserts loose...it's said to flex in accordance to natural bone given comparable thickness. Just for a sidenote: peek is also used for structural bone implants and as gaskets in directional drill motors for the oil and gas industry, withstanding thousands of PSI drilling mud pressures.</p></blockquote><p></p>
[QUOTE="zero_zero, post: 259592, member: 9932"] Pressed would work for cases which are difficult to mill because of their geometry, otherwise I'd prefer milled...at least you're cutting from a homogeneous stock. I'd say they are par strength wise...milled could be a bit stronger tho. Pressed could be cheaper to produce since you don't have to invest in an expensive disk(s). Peek can flex a lot, so it doesn't have to be strong as a metal bar per se, yet still could function. The screws are tightened against a Ti insert, so it can be torqued down. The flex in the peek substructure does act like a shockabsorber, if it's designed properly will not wiggle the Ti inserts loose...it's said to flex in accordance to natural bone given comparable thickness. Just for a sidenote: peek is also used for structural bone implants and as gaskets in directional drill motors for the oil and gas industry, withstanding thousands of PSI drilling mud pressures. [/QUOTE]
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