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Updated: Aug 17, 2026
3D Imaging of PDL Collagen Fibers during Orthodontic Tooth Movement in Mandibular Murine Model
Published on: April 15, 2021
[The integrin beta1 mRNA changes after orthodontic movement of teeth in periodontitis rats]
Jing-Ju Zhang1, Yang-Xi Chen, Li-Wei Xiao
1Key Lab. of Oral Biomedical Engineering of Ministry of Education, Sichuan University, Chengdu 610041, China.
Objective:
To study the integrin beta1 mRNA changes after orthodontic tooth movement in normal teeth and periodontitis teeth of rats.
Methods:
The OD of positively stained osteoclasts for integrin beta1 mRNA using in situ hybridzation was detected after orthodontic tooth movement in normal teeth and periodontitis teeth groups.
Results:
Integrin beta1 mRNA expression were detected on all osteoclasts in tooth movement samples of normal and periodontitis teeth. There were stronger positive signals after given orthodontic force in both of the two groups. But no differences were found after 0.5, 1, 2, 3, 5, 7, 10 days since orthodontic tooth movement. The integrin beta1 mRNA signals in normal tooth movement group were not different from that in periodontitis group.
Conclusion:
The integrin beta1 of osteoclasts may play a role in the stability and remodeling of periodontal ligament in orthodontic tooth movement. There were no difference in the OD of integrin beta1 mRNA staining in orthodontic tooth movement between normal teeth group and periodontitis teeth group.
