Abstract
This paper is part of a larger study that aims to evaluate the biomechanical behaviour of mandibular bone and periodontal splinting systems subjected to different occlusal forces by means of electric resistive tensometry (ERT). The research was based on the following premise: the degree of bone resorption and periodontal type of splint influence the deformation of the mandibular bone. The study was conducted in two stages: first, the validation of the mandibular dental arch model, which is the subject of the present article, and second, the evaluation of mandibular bone strain in case of different types of bone loss and periodontal splints, which is the subject of a second article.
Highlights
In the context of periodontal disease, occlusal forces can exacerbate a pre-existing periodontal lesion when they exceed the resistance threshold of a compromised epithelial attachment [1-4]
This paper is part of a larger study that aims to evaluate the biomechanical behaviour of anterior mandibular bone and periodontal splinting systems subjected to different occlusal forces by means of electric resistive tensometry (ERT)
The study was conducted in two stages: first, the validation of the mandibular dental arch model, which is the subject of the present article, and second, the evaluation of mandibular bone strain in case of different types of bone loss and periodontal splints, which is the subject of a second article
Summary
The dumping effect of the periodontium, tooth displacement and bone strain were evaluated with Periotest device, mechanical comparator and strain gauges respectively. Each with 8 teeth, were tested for four variables: (i) occlusal load (30N, 50N, 100N, 150 N); (ii) bone status (without and with bone loss); (iii) mandible surface (buccal/lingual aspect of the bone); (iv) load distribution (central incisors and incisal group); (v) tooth (central incisor - CI and lateral incisor - LI). C. Selecting and placing the strain gauges Strain gauges (SG) (EA-06-240LZ-120/E, Micro-Measurements Group, Vishay, Batch No.: R-A59AF524) with 6 mm length and 2 mm width were selected to quantify the deformations of the bone. Selecting and placing the strain gauges Strain gauges (SG) (EA-06-240LZ-120/E, Micro-Measurements Group, Vishay, Batch No.: R-A59AF524) with 6 mm length and 2 mm width were selected to quantify the deformations of the bone Their electrical resistance was 120 ± 0.03Ω at 24oC. The PTV and its correlations to clinical mobility are given in table 1
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