Cryopreservation of human teeth for future organization of a tooth bank - A preliminary study

Young Hak Oh, Zhong Min Che, Jun Chul Hong, Eun Ju Lee, Seung Jong Lee, Jin Kim

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

This study was aimed at evaluating whether cryopreserved teeth can be used for future transplantation by examining the viability and differentiation capability of periodontal ligament (PDL) cells and measuring the hardness of dental hard tissue. Fifty-four teeth were divided into two groups, control and frozen teeth. A MTT assay and a TUNEL assay were performed for the examination of the viability and apoptotic death of PDL cells. Immunohistochemical staining for alkaline phosphatase was performed to observe whether the differentiation capability of PDL cells was maintained by the freezing and thawing procedure. Hardness was measured to detect whether dental hard tissue was affected by the freezing conditions. The MTT and TUNEL assays showed no significant difference in the viability of PDL cells between the two groups. The differentiation capability of PDL cells was maintained in frozen teeth as evidenced by alkaline phosphatase staining. The hardness of frozen teeth was not changed, but a longitudinal fracture was found in 25% of the frozen group. The viability and differentiation capability of PDL cells were maintained in a frozen environment; however, it is thought that a new cryopreservation method preventing fracture of dental hard tissue should be developed for clinical application.

Original languageEnglish
Pages (from-to)322-329
Number of pages8
JournalCryobiology
Volume51
Issue number3
DOIs
Publication statusPublished - 2005 Dec 1

Fingerprint

Ligaments
Cryopreservation
cryopreservation
Periodontal Ligament
Tooth
teeth
ligaments
Assays
Hardness
viability
Tissue
hardness
Freezing
Alkaline Phosphatase
In Situ Nick-End Labeling
cells
alkaline phosphatase
freezing
assays
Thawing

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Oh, Young Hak ; Che, Zhong Min ; Hong, Jun Chul ; Lee, Eun Ju ; Lee, Seung Jong ; Kim, Jin. / Cryopreservation of human teeth for future organization of a tooth bank - A preliminary study. In: Cryobiology. 2005 ; Vol. 51, No. 3. pp. 322-329.
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Cryopreservation of human teeth for future organization of a tooth bank - A preliminary study. / Oh, Young Hak; Che, Zhong Min; Hong, Jun Chul; Lee, Eun Ju; Lee, Seung Jong; Kim, Jin.

In: Cryobiology, Vol. 51, No. 3, 01.12.2005, p. 322-329.

Research output: Contribution to journalArticle

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