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Biological stability and transplantation test of PLLA/gelatin hybrid polymer as a barrier to periodontal tissue regeneration

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2025, 35(2), pp.55~62
  • DOI : 10.6111/JKCGCT.2025.35.2.055
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : March 21, 2025
  • Accepted : April 21, 2025
  • Published : June 30, 2025

Juwoong Jang 1,  Deuk Yong Lee ORD ID 2

1(주)리뉴메디칼 연구소
2(주)하스

Accredited

ABSTRACT

The feasibility of the PLLA/gelatin absorbable periodontal tissue regeneration barrier membrane was investigated by examining the biological stability (cytotoxicity, guinea pig maximization test, intradermal test, acute systemic toxicity, and chromosome abnormalty test) and efficacy evaluation using a rat calvarial defect model. As a result of the biological stability evaluation, no abnormal results were observed, indicating excellent biocompatibility. In addition, the transplantation test using a bone defect model for 2 weeks exhibited no significant difference in the volume of regenerated bone and average weight loss of more than 20 %. As a result of the skull observation, the barrier membrane was well fixed to the transplantation site, properly shielding the bone defect area, and no inflammatory response was observed. The experimental results suggest that PLLA/gelain barrier membrane was well suited for absorbable periodontal tissue regeneration.

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