An Animal Model to Study Regenerative Endodontics

Transfusion Medicine and Hemotherapy, 2016

Journal of Materials Science: Materials in Medicine

Based on the concept of tissue engineering (Cells—Scaffold—Bioactive molecules), regenerative endodontics appeared as a new notion for dental endodontic treatment. Its approaches aim to preserve dental pulp vitality (pulp capping) or to regenerate a vascularized pulp-like tissue inside necrotic root canals by cell homing. To improve the methods of tissue engineering for pulp regeneration, numerous studies using in vitro, ex vivo, and in vivo models have been performed. This review explores the evolution of laboratory models used in such studies and classifies them according to different criteria. It starts from the initial two–dimensional in vitro models that allowed characterization of stem cell behavior, through 3D culture matrices combined with dental tissue and finally arrives at the more challenging ex vivo and in vivo models. The travel which follows the elaboration of such models reveals the difficulty in establishing reproducible laboratory models for dental pulp regeneratio...

Mansoura Journal of Dentistry, 2021

Journal of biomedical materials research. Part B, Applied biomaterials, 2015

Trauma to the dental pulp, physical or microbiologic, can lead to inflammation of the pulp followed by necrosis. The current treatment modality for such cases is non-surgical root canal treatment. The damaged tissue is extirpated and the root canal system prepared. It is then obturated with an inert material such a gutta percha. In spite of advances in techniques and materials, 10%-15% of the cases may end in failure of treatment. Regenerative endodontics combines principles of endodontics, cell biology, and tissue engineering to provide an ideal treatment for inflamed and necrotic pulp. It utilizes mesenchymal stem cells, growth factors, and organ tissue culture to provide treatment. Potential treatment modalities include induction of blood clot for pulp revascularization, scaffold aided regeneration, and pulp implantation. Although in its infancy, successful treatment of damaged pulp tissue has been performed using principles of regenerative endodontics. This field is dynamic and ...

Journal of Indian Academy of Dental Specialist Researchers, 2017

The advancement of science and technology has huge positive impacts on the present day world. It has contributed immensely to every aspect of our lives, including the medical and dental care. The treatment concepts that were once perceived to be imaginative are today considered achievable. Even though millions of teeth are saved by root canal therapy every year, still, a significant number is rendered unrestorable and doomed to extraction. Thus, an alternative restorative therapy, which may substitute natural teeth, other than root canal therapy is needed. One biological approach to restore tooth structure is a regenerative endodontic procedure, where tissue engineering principles are applied. The field of tissue engineering has literally exploded during the past decade. The first is revascularization, where a new pulp tissue is expected to grow into the root canals from the remaining tissues exist apically in the root canal. The second includes tissue engineering where the replacement of the diseased pulp with a healthy tissue that is able to revitalize the tooth and restore dentin formation process.

Journal of endodontics, 2008

During the last 10-15 years, there has been a tremendous increase in our clinical "tools" (ie, materials, instruments, and medications) and knowledge from the trauma and tissue engineering fields that can be applied to regeneration of a functional pulp-dentin complex. In addition, recent case reports indicate that biologically based endodontic therapies can result in continued root development, increased dentinal wall thickness, and apical closure when treating cases of necrotic immature permanent teeth. The purpose of this review was to summarize these findings and illustrate a path forward for the development and evaluation of regenerative endodontic therapies.

Iranian Endodontic Journal, 2014

Regenerative endodontic procedure is introduced as a biologically based treatment for immature teeth with pulp necrosis. Successful clinical and radiographic outcomes following regenerative procedures have been reported in landmark case reports. Retrospective studies have shown that this conservative treatment allows for continued root development and increases success and survival rate of the treated teeth compared to other treatment options. Although the goal of treatment is regeneration of a functional pulp tissue, histological analyses show a different outcome. Developing predictable protocols would require the use of key elements for tissue engineering: stem cells, bioactive scaffolds, and growth factors. In this study we will review the evidence based steps and outcomes of regenerative endodontics.

Journal of endodontics

Recent advances in biotechnology and translational research have made it possible to provide treatment modalities that protect the vital pulp, allow manipulation of reactionary and reparative dentinogenesis, and, more recently, permit revascularization of an infected root canal space. These approaches are referred to as regenerative procedures. The method currently used to determine the origin of the tissue secreted during the repair/regeneration process is largely based on the identification of cellular markers (usually proteins) left by cells that were responsible for this tissue production. The presence of these proteins in conjunction with other indicators of cellular behavior (especially biomineralization) and analysis of the structure of the newly generated tissue allow conclusions to be made of how it was formed. Thus far, it has not been possible to truly establish the biological mechanism controlling tertiary dentinogenesis. This article considers current therapeutic techni...

International Dental & Medical Journal of Advanced Research - VOLUME 2015

Regenerative medicine, aims to restore or establish the normal function of lost, diseased, damaged or aging cells, tissues and organs using a range of approaches; including cellbased and gene-based therapies, tissue engineering, and biomedical engineering. The future scope of regenerative endodontics may be increased to include the replacement of periapical tissues, periodontal ligaments, gingiva, and even tooth in-toto. The aim of this article is to review the prospects of endodontic regeneration.Future clinical research would likely focus on translating basic research findings into improved regenerative procedures, such as formation of cementum-like material on the dentinal walls that might lead to studies evaluating benefits of revascularization procedures for overall tooth resistance to fracture. Controlled differentiation into odontoblasts is an important area of research and amenable to tissue engineering concepts. The development of the delivery systems might permit structural reinforcement of the cervical area that might provide clinical opportunities to regenerate lost tooth structure, thereby permitting natural teeth to be retained. Clinical significance: Expanding the scope of regenerative medicine, researchers have also developed and applied regenerative procedures in oral soft and hard tissues.