A Compilation of Study Models for Dental Pulp Regeneration

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Dental Research

Background:

• Tissue engineering efforts show positive results for damaged dental pulp healing in pilot trials.
• Clinical measures cannot differentiate between true tissue regeneration and mere repair.
• Preclinical study models are crucial for understanding treatment outcomes at tissue and cellular levels.

Purpose of the Study:

• To compile information on various in vitro and in vivo models for dental pulp regeneration.
• To discuss differences between monolayer and 3D cell cultures.
• To introduce a semiorthotopic transplantation model and present animal models for orthotopic investigations.

Main Methods:

• Review of existing literature on in vitro cell cultures (monolayer and 3D).
• Analysis of in vivo preclinical models: ectopic, semiorthotopic, and orthotopic.
• Introduction of a novel semiorthotopic transplantation model for dental pulp regeneration.

Main Results:

• Identified and categorized diverse in vitro and in vivo models for dental pulp regeneration.
• Highlighted the importance of 3D cell cultures over monolayer for mimicking native tissue environments.
• Presented a semiorthotopic model as a valuable tool for in vivo dental pulp regeneration studies.

Conclusions:

• Preclinical models are essential for advancing dental pulp regeneration beyond current clinical limitations.
• The reviewed models provide a foundation for future research and development in dental tissue engineering.
• Further investigation using established and novel preclinical models will refine regenerative strategies.