The stress model of abutment tooth and periodontal tissues with unilateral mandibular dissociation and loss by precision extracoronal attachment
| العنوان: | The stress model of abutment tooth and periodontal tissues with unilateral mandibular dissociation and loss by precision extracoronal attachment |
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| المؤلفون: | Zongxiang Liu, Huijie Wang, Juan Li |
| المصدر: | Saudi Journal of Biological Sciences Saudi Journal of Biological Sciences, Vol 26, Iss 8, Pp 2118-2121 (2019) |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Periodontal tissue, Stress model, Abutment, Abutment tooth, Oral cavity, 01 natural sciences, Precision extracoronal attachment, Article, 03 medical and health sciences, stomatognathic system, Precision attachment, Medicine, lcsh:QH301-705.5, Orthodontics, business.industry, Biomechanics, Unilateral dissociation and loss, Stress distribution, stomatognathic diseases, 030104 developmental biology, lcsh:Biology (General), Coronal plane, Tooth Tissue, General Agricultural and Biological Sciences, business, 010606 plant biology & botany |
| الوصف: | In order to explore the application of the precision extracoronal attachment based on three-dimensional finite element stress model in the repair of unilateral mandibular dissociation and loss, the stress distribution of the butment and periodontal tissues when the precision extracoronal attachment was used in unilateral mandibular dissociation and loss was analyzed, so as to provide reference for the application of materials in clinical repair. In this study, the biomechanics of oral cavity and its attachment were analyzed to provide theoretical basis for model construction. Because the degree of periodontal tissue absorption and the number of abutment teeth affected the restoration effect of the coronal precision attachment, the models were established from these two perspectives. The results showed that when the periodontal tissue absorption of both abutment teeth exceeded 1/3, the method of double abutment restoration was not recommended. When three abutments were used, there was a significant decrease compared with the absorption of the periodontal tissue of the double abutment. In clinic, the stress distribution of the distal abutment teeth and its periodontal tissues can be improved by increasing the number of abutment tooth. However, since increasing the number of abutments required an increase in the amount of healthy tooth tissue, it couldn’t be blindly selected in the clinic. After comprehensive consideration, it is appropriate to choose two abutment teeth for restoration. Keywords: Precision extracoronal attachment, Unilateral dissociation and loss, Abutment tooth, Periodontal tissue, Stress model |
| تدمد: | 1319-562X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b88af882585234ed9758acab7df5785f https://pubmed.ncbi.nlm.nih.gov/31889805 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....b88af882585234ed9758acab7df5785f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1319562X |
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