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Influence of tooth root resection level on stress-strain state of endodontic endosseous implant in dentoalveolar segmentстатья
Дата последнего поиска статьи во внешних источниках: 21 августа 2017 г.
- Авторы: Dzhalalova M.V., Stepanov A.G.
- Журнал: Russian Journal of Biomechanics
- Том: 21
- Номер: 1
- Год издания: 2017
- Издательство: Perm National Research Polytechnic University
- Местоположение издательства: Perm, Russia
- Первая страница: 44
- Последняя страница: 55
- DOI: 10.15593/RJBiomech/2017.1.05
- Аннотация: Restoration of lost biomechanical properties of resected or amputated tooth roots is achieved by their reinforcement with standard endodontic endosseous or transdental implants. A developed mathematical model and the finite element method were used to carry out a numerical study of displacement dependence of an endodontic endosseous implant (EEI) and stresses in its surrounding bone tissue on different root resection levels and the imposed functional load acting vertically on the occlusal surface of a tooth. The problem was considered in the axisymmetric formulation. A computer model of the dentoalveolar segment included gum, single-rooted premolar tooth, endodontic endosseous implant, periodontal ligament, compact alveolus bone, and spongy bone considering mechanical properties of the materials of each of the system elements. Several options for the root resection were considered: amputation of 1/3 of the root, of 1/2, and of 2/3 on the 1st and 2nd stages after implant placement. The first stage represents a short period of time after implant placement when there is no osseointegration with bone tissue yet; the second stage – implant osseointegration with bone tissue has occurred, and the extracted volume is filled with spongy bone. This work presents a comparative analysis with the previous studies, in which the finite element method was used for similar investigation of dependences of the stress-strain behavior of a transdental implant and its surrounding bone tissue on different root resection levels and the vertical load applied to the occlusal surface on the 1st and 2nd stages after implant placement.
- Добавил в систему: Джалалова Маргарита Васильевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Art_2017_EEI_Bio_eng.pdf | 1,1 МБ | 8 апреля 2017 [Dzhalalova] |