Impact of occlusal contact pattern on dental stability and oromandibular system after orthodontic tooth movement in rats

How to ensure dental stability in new positions and reduce the likelihood of relapse is a major clinical concern in the orthodontic field. Occlusal contacts between arches may affect the transmission of masticatory forces, thereby influencing the biological response of the periodontal and the oroman...

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Bibliographic Details
Published in:Scientific reports 2023-12, Vol.13 (1), p.22276-22276, Article 22276
Main Authors: Wang, Menglin, Wang, Jing, Jin, Xiang, Liu, Dedi, Bian, Huan, Zhao, Yantao, Li, Yanfeng
Format: Article
Language:English
Subjects:
631/1647
631/449
Alveolar bone
Animal models
Bone resorption
Humanities and Social Sciences
Inflammation
Masseter muscle
Mastication
multidisciplinary
Orthodontics
Science
Science (multidisciplinary)
Teeth
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Summary:How to ensure dental stability in new positions and reduce the likelihood of relapse is a major clinical concern in the orthodontic field. Occlusal contacts between arches may affect the transmission of masticatory forces, thereby influencing the biological response of the periodontal and the oromandibular system. Occlusion factors that may influence the stability after orthodontic tooth movement (OTM) remain largely unknown. Hence, this research was conducted in order to investigate the influence of different occlusal contact patterns on tooth stability and oromandibular system including the masseter muscle and the temporomandibular joint following OTM. By modifying the occlusal surfaces, in vivo animal study models with distinct occlusal patterns corresponding to clinical circumstances were established. The relapse distance of teeth and the level of inflammatory factors in the gingival cervical fluid were analyzed. We also closely observed the histological remodeling of periodontal tissue, masseter tissue, and joint tissue after one week of relapse. Moreover, genes expression in the alveolar bone was analyzed to illustrate the potential biological mechanisms of relapse under the influence of different occlusal contact patterns following OTM. Different occlusal contact patterns after OTM in rats were established. The intercuspation contact between cusp and fossa group exhibited the lowest level of relapse movement, inflammatory factors and osteoclast activity ( P  
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-46668-x