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1 Northwestern University Dental School, Chicago, Illinois 60611, USA
The virgin ultimate strength of polyglycolic acid (PGA) suture material exceeded that of silk or gut, but it decreased significantly after residence in oral tissue of surgery patients. Low-cycle tensile fatigue tests showed that breaking strengths of PGA sutures were decreased appreciably by cyclic loading and by degradation in oral tissue.
Submitted on August 20, 1973
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