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Updated: Jun 7, 2026

Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

Published on: January 12, 2017

Mechanically Induced Pulpitis: A Rat Model That Preserves Animal Well-Being.

María Alexandra Bedoya¹, Gloria Cristina Moreno¹, Camilo Durán¹

¹Centro de Investigaciones Odontológicas, Faculty of Dentistry, Pontificia Universidad Javeriana, Bogotá 110231, Colombia.

|August 28, 2025

Summary

Researchers developed a new rat model for studying pulpitis, a dental condition. This model, which involves mechanical pulpitis induction, proved safe and reproducible, showing no significant impact on animal well-being.

Keywords:

animal model animal well-being dental pulp mechanical pulp exposure mechanically induced pulpitis pulpitis rat model

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Last Updated: Jun 7, 2026

Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

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Published on: January 12, 2017

Inducing Apical Periodontitis in Mice

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Published on: August 6, 2019

Author Spotlight: Enhancing Dental Pulp Research with Improved Mouse Models

Author Spotlight: Enhancing Dental Pulp Research with Improved Mouse Models

Published on: October 27, 2023

Area of Science:

Dental Research
Animal Models
Inflammation Studies

Background:

Understanding dental pulpitis mechanisms in humans necessitates reliable animal models.
The ethical use of animal models requires a favorable harm/benefit balance.

Purpose of the Study:

To establish a rat model for mechanically induced pulpitis.
To assess the impact of this model on animal well-being.

Main Methods:

Mechanical pulpitis was induced in Lewis rats by exposing pulp and sealing with amalgam or zinc phosphate cement.
Behavioral assessments and histological evaluations (H&E staining) were performed at 3 hours and 5 days post-procedure.

Main Results:

A standardized, reproducible model of mechanically induced pulpitis was successfully created.
Histopathological analysis confirmed the inflammatory process.
No statistically significant differences were observed in pain, distress, food/water intake, or body weight.

Conclusions:

The developed rat model is safe and reproducible for studying pulp inflammation mechanisms.
Behavioral assessments support the model's suitability for future research.