The study investigated allogenic pulp transplantation as an innovative method of regenerative endodontic therapy. Three patients were selected for the endodontic treatment of single-root teeth, who also had a son/daughter with deciduous teeth or third molars scheduled for extraction. Receptor teeth were endodontically instrumented and irrigated using a tri-antibiotic solution. During the transplant procedures, the teeth from the son/daughter were extracted, sectioned, and the pulp was carefully removed. The harvested pulp from the donor was inserted into the root canal of the host tooth (father/mother), followed by direct pulp capping and resin composite restoration. The teeth were followed-up with for 2 years and were surveyed with computed tomography, the electric pulp vitality test, and Doppler ultrasound examination. At the 6-month follow-up, positive pulp vitality and the formation of periapical lesions were verified in cases 1 and 2. Case 3 showed remarkable periapical radiolucency before transplantation, but after 1 year, such lesions disappeared and there was positive vitality. All teeth were revascularized as determined by Doppler imaging after 2 years with no signs of endodontic/periodontal radiolucency. In conclusion, although this was a case series with only three patients and four teeth treated, it is possible to suppose that this allogenic pulp transplantation protocol could represent a potential strategy for pulp revitalization in specific endodontic cases.
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http://dx.doi.org/10.3390/bioengineering9110699 | DOI Listing |
J Endod
December 2024
Tokyo New Drug Research Laboratories, Pharmaceutical Business Unit, Kowa Company, Ltd., 2-17-43 Noguchi-cho, Higashimurayama, Tokyo, Japan.
Introduction: Our previous study showed that transplantation of dental pulp stem cells (DPSCs) in combination with a chemokine receptor 3 (CCR3) antagonist into the root canals of aged dogs promoted dental pulp regeneration. In this study, we attempted to regenerate dental pulp in young dogs using a CCR3 antagonist without DPSC transplantation.
Methods: The teeth of dogs were histologically evaluated 4 weeks after extraction of the pulp and administration of scaffold materials and CCR3 antagonist (KDH-136) into the root canal.
bioRxiv
December 2024
Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago 60612, IL, USA.
Dental caries is one of the most common health issues worldwide arising from the complex interactions of bacteria. In response to harmful stimuli, desirable outcome for the tooth is the formation of tertiary dentin, a protective reparative process that generates new hard tissue. This reparative dentinogenesis is associated with significant inflammation, which triggers the recruitment and differentiation of dental pulp stem cells (DPSCs).
View Article and Find Full Text PDFNeuroscience
December 2024
Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran; Universal Scientific Education and Research Network, Tehran, Iran. Electronic address:
Diabetic peripheral neuropathy (DPN) is the most common form of diabetic neuropathy, representing 75% of cases and posing a substantial public health challenge. Emerging evidence from animal studies indicates that stem cell therapy holds significant promise as a potential treatment for diabetic neuropathy. Nevertheless, a comprehensive evaluation of the safety and efficacy of stem cell therapy for DPN in animal studies remains outstanding.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
December 2024
Department of Stomatology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China. Electronic address:
Periodontitis, an inflammatory and infectious disease resulting from dental plaque, affects tooth-supporting tissues and interconnects with various systemic conditions. Advancing periodontal tissue regeneration stands as pivotal in periodontitis treatment. Presently, odontogenic stem cells garner substantial interest for dental pulp functional tissue regeneration.
View Article and Find Full Text PDFInt Endod J
December 2024
School of Stomatology, Jinan University, Guangzhou, China.
Background: Dental pulp tissue engineering is expected to become an ideal treatment for irreversible pulpitis and apical periodontitis. However, angiogenesis and neurogenesis for functional pulp regeneration have not yet met the standard for large-scale clinical application, and need further research.
Objective: This review focused on the potential mechanisms of angiogenesis and neurogenesis in pulp regeneration, including stem cell types, upstream and downstream regulatory molecules and cascade signalling pathways, thereby providing a theoretical basis and inspiring new ideas to improve the effectiveness of dental pulp tissue engineering.
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