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Related Experiment Video

Updated: Aug 12, 2025

Induction of Periodontitis via a Combination of Ligature and Lipopolysaccharide Injection in a Rat Model
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A modified method for constructing experimental rat periodontitis model.

Xuyang Zhang1,2, Minglu Xu1,2, Qin Xue1,2

  • 1Department of Orthodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.

Frontiers in Bioengineering and Biotechnology
|January 30, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a refined rat model for periodontitis, enhancing bacterial aggregation and reliability. The improved method effectively simulates the disease

Keywords:
animal modelbone lossinflammationperiodontitisrat model

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Area of Science:

  • Oral Biology
  • Periodontology
  • Animal Models

Background:

  • Periodontitis is a common cause of tooth loss.
  • Existing rat models for periodontitis induction have limitations.
  • A reliable animal model is crucial for studying periodontitis.

Purpose of the Study:

  • To develop and validate a modified rat ligature model for periodontitis.
  • To assess the pathological process and reliability of the new model.
  • To compare the modified model with existing methods.

Main Methods:

  • Modification of the ligature technique using both thread and metal steel ligatures.
  • Placement of ligatures between the first and second molars in rats.
  • Detailed illustration of modeling steps and pathological assessment.

Main Results:

  • The modified model demonstrated increased inflammatory infiltration and alveolar bone resorption within 14 days.
  • The model showed enhanced bacterial aggregation compared to the metal steel ligature model.
  • The modified model proved more reliable than the thread ligature model.

Conclusions:

  • The modified rat ligature model effectively covers the pathological progression of periodontitis.
  • This enhanced model offers improved efficiency and reliability for periodontitis research.
  • The method provides a valuable tool for studying periodontitis in vivo.