Strength analysis of 6 resorbable implant systems: does heating affect the stress-strain curve?
OBJECTIVE
The objective was to directly compare the strength of 6 different resorbable implant plating systems using an in vitro model before and after heating.


METHODS
Red oak wood was cut and fixated using various resorbable plates and screws. Vertical load was applied and the specimens fractured, while a test machine gathered data. This was repeated after heating of the specimens.


RESULTS
Several parameters were analyzed, and force versus displacement curves were plotted for each specimen.


CONCLUSIONS
There were no statistically significant differences for total maximum loads between heat-treated and non heat-treated specimens. There were differences in strengths amongst the various systems.
Ricalde
Pat
P
St Joseph's Children's Craniofacial Center, Tampa, FL, USA. pricalde@tampabay.rr.com
Caccamese
John
J
Norby
Clinton
C
Posnick
Jeffrey C
JC
Hartman
Michael J
MJ
von Fraunhofer
J Anthony
JA
D020341:Absorbable Implants; D001860:Bone Plates; D004146:Dioxanes; D005593:Fracture Fixation, Internal / Q000295:instrumentation*; D006358:Hot Temperature; D019344:Lactic Acid; D008422:Materials Testing; D011091:Polyesters; D011100:Polyglycolic Acid; D011108:Polymers; D013314:Stress, Mechanical; D016474:Weight-Bearing
D004146:Dioxanes; D011091:Polyesters; D011108:Polymers; D011100:Polyglycolic Acid; D019344:Lactic Acid; C443643:trimethylene carbonate; C033616:poly(lactide)