Related Experiment Video
Updated: May 1, 2026
Isolation, Culture, and Characterization of Dental Pulp Stem Cells from Human Deciduous and Permanent Teeth
Published on: May 17, 2024
Cryopreserved dentin matrix as a scaffold material for dentin-pulp tissue regeneration.
Liang Jiao1, Li Xie2, Bo Yang1
1State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu 610041, Sichuan Province, PR China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu 610041, Sichuan Province, PR China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu 610041, Sichuan Province, PR China.
Cryopreservation effectively preserves treated dentin matrix (TDM) scaffolds, maintaining their bioactive properties. Cryopreserved dentin matrix (CDM) successfully regenerates dentin-pulp like tissue, showing potential for dental tissue engineering.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Dental Tissue Engineering
Background:
- Treated dentin matrix (TDM) shows promise as a bioactive scaffold for dental regeneration.
- Long-term preservation of engineered tissues is crucial for clinical applications.
Purpose of the Study:
- To investigate the efficacy of cryopreservation for maintaining TDM's biological properties.
- To evaluate the potential of cryopreserved dentin matrix (CDM) as a scaffold for dentin-pulp regeneration.
Main Methods:
- TDM was cryopreserved for 3 and 6 months to create CDM.
- Mechanical properties, protein release, and cell proliferation were assessed.
- Human dental follicle cells were encapsulated in CDM, implanted in mice, and analyzed histologically.
Main Results:
- CDM exhibited superior mechanical properties and increased release of dentinogenesis proteins compared to TDM.
- CDM extract promoted odontogenesis in human dental follicle cells in vitro.
- In vivo, CDM induced the regeneration of dentin-pulp like tissues with essential structures and markers.
Conclusions:
- Cryopreservation is an effective method for preserving TDM scaffolds.
- CDM serves as an ideal biological scaffold for regenerating dentin-pulp like tissue.
- This approach offers a viable strategy for preserving tissue engineering scaffolds for clinical use.
