Abstract
Objectives
To investigate the alveolar bone characteristics of mandibular anterior teeth in patients with periodontitis.
Materials and methods
100 patients with periodontitis were selected and grouped according to the degrees of alveolar bone resorption, age, gender, and tooth type. The labial thickness of the alveolar bone, the degree of alveolar bone resorption, angulation between the long axis of teeth and alveolar process, alveolar bone height and density of the mandibular anterior teeth were measured.
Results
There were significant differences in alveolar bone morphology between these three groups. Compared with the mild and moderate groups, the severe group showed that the alveolar bone in the half of the root crown was thickened, the alveolar bone height was decreased, the cancellous alveolar bone density was increased, and the cortical alveolar bone density was decreased. The resorption of alveolar bone was characterized by greater resorption of proximal bone than that of labial bone with increased bone loss. There were also differences in alveolar bone characteristics among patients of different ages, genders, and tooth types.
Conclusions
The morphology of the mandibular anterior alveolar bone changed accordingly with the degree of periodontitis. Labial alveolar bone thickness and cortical alveolar bone density were negatively correlated with the degree of periodontitis, while alveolar bone height and cancellous alveolar bone density were positively correlated with the degree of periodontitis.
Clinical relevance
These results allow clinicians to better understand the alveolar bone morphology of the mandibular anterior teeth in patients with periodontitis, facilitating better treatment design and avoiding complications.
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Data availability
Data is available on request from the authors. The data that support the findings of this study are available from the corresponding author upon reasonable request.
Change history
10 October 2023
A Correction to this paper has been published: https://doi.org/10.1007/s00784-023-05314-6
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Funding
This work was supported by grants from the National Natural Science Foundation of China (82201072), the project of Jiangsu Provincial Health Commission on elderly health (LKZ2023009), the educational research project of Nanjing Medical University (2021YJS-ZD011), Jiangsu Province Capability Improvement Project through Science, Technology and Education-Jiangsu Provincial Research Hospital Cultivation Unit (YJXYYJSDW4) and Jiangsu Provincial Medical Innovation Center (CXZX202227).
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Qi Yang: the radiographic analyses, data collection, statistical analyses, and manuscript writing. Zixin Fan: the radiographic analyses, data collection, and statistical analyses. Pengzhou Tang, Yue Jiang: the study design, data collection, and analyses. Minxuan Han, Lu Li: conceived and supervised the whole project. All authors read and approved the final manuscript.
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The study was reviewed and approved by the Ethics and Research Committee, Nanjing Medical University (PJ2020-138-001) and conducted in accordance with the tenets of the Declaration of Helsinki for research involving human subjects.
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Since this study was a retrospective analysis, informed consent was not required.
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Yang, Q., Fan, Z., Tang, P. et al. Characteristics of mandibular anterior alveolar bone in patients with different degrees of periodontitis: a retrospective study based on CBCT. Clin Oral Invest 27, 6709–6721 (2023). https://doi.org/10.1007/s00784-023-05280-z
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DOI: https://doi.org/10.1007/s00784-023-05280-z