Effects of ascorbic acid concentration on the tissue engineering of the temporomandibular joint disc

A. C. Bean, A. J. Almarza, K. A. Athanasiou

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

The temporomandibular joint (TMJ) disc is a specialized fibrocartilaginous tissue. When the disc becomes an obstacle and becomes damaged, surgeons have no choice but to perform a discectomy. Tissue engineering may provide a novel treatment modality for TMJ disorder patients who undergo discectomy. No studies have been conducted on the most favourable media for TMJ disc cells. The objective of the current study was to examine the effects on biochemical and biomechanical properties of varying ascorbic acid concentrations (0, 25, or 50 μg /ml) on TMJ disc cells seeded on non-woven PGA scaffolds. The ascorbic acid concentration of the 25 μg/ml group resulted in more effective cell seeding of the scaffolds, with 1.53 million cells per construct, by comparison with the 0 and 50 μg/ml groups which had 1.20 million and 1.32 million cells per scaffold respectively. At week 4, the 25 μg/ml group had a higher collagen content than the 0 μg/ml group, with 30.4 ± 2.7 and 24.9 ± 3.3 μg of collagen per construct respectively. The 25 μg/ml group had a higher aggregate modulus than the 50 μg/ml group, with values of 6.1 ± 1.3 and 4.0 ± 0.9 kPa respectively at week 4. The results of this study indicate that the use of 25 μg/ml of ascorbic acid in culture media is effective for the tissue engineering of the TMJ disc, significantly outperforming media without or with 50 μg/ml of ascorbic acid.

Original languageEnglish (US)
Pages (from-to)439-447
Number of pages9
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume220
Issue number3
DOIs
StatePublished - 2006
Externally publishedYes

Keywords

  • Ascorbic acid
  • Media contents
  • Scaffolds
  • Tissue engineering
  • TMJ disc

ASJC Scopus subject areas

  • Biomedical Engineering
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Effects of ascorbic acid concentration on the tissue engineering of the temporomandibular joint disc'. Together they form a unique fingerprint.

  • Cite this