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Published in: Odontology 4/2022

03-06-2022 | Bone Defect | Original Article

The optimization of ligature/bone defect-induced periodontitis model in rats

Authors: Jingyi Gao, Simin Cai, Zijie Wang, Dan Li, Minyi Ou, Xinlu Zhang, Zhihui Tian

Published in: Odontology | Issue 4/2022

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Abstract

The destruction of alveolar bone is a crucial manifestation of severe chronic periodontitis, which stem cell-based bioengineered therapies are expected to cure. Therefore, a cost-effective, reproducible, quantifiability and easier to administrate animal model that mimics human periodontitis is of great importance for further endeavor. In this study, we created periodontitis rat models in silk ligation group, bone defect group and bone defect/silk ligation group, respectively. Obvious periodontal inflammation but slight alveolar bone resorption was observed in the ligation group, while surgical trauma was not robust enough to continually worsen the constructed bone defect area in the bone defect group. In the bone defect/ligature group, significant and stable periodontal inflammation was the most enduring with similar evolving pathological patterns of human periodontitis. It also exhibited enhanced clinical similarity and confirmed its superiority in quantitativeness. The present rat model is the first study to reproduce a pathological process similar to human periodontitis with reliable stability and repeatability, manifesting a priority to previous methods. Day 9–12 is the best time for reproducing severe periodontitis syndromes with vertical bone resorption in this model.
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Literature
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Metadata
Title
The optimization of ligature/bone defect-induced periodontitis model in rats
Authors
Jingyi Gao
Simin Cai
Zijie Wang
Dan Li
Minyi Ou
Xinlu Zhang
Zhihui Tian
Publication date
03-06-2022
Publisher
Springer Nature Singapore
Keyword
Bone Defect
Published in
Odontology / Issue 4/2022
Print ISSN: 1618-1247
Electronic ISSN: 1618-1255
DOI
https://doi.org/10.1007/s10266-022-00715-7

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