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izvor podataka: crosbi

Biomechanics of cervical tooth region and noncarious cervical lesions of different morphology ; three-dimensional finite element analysis (CROSBI ID 229727)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Jakupović, Selma ; Anić, Ivica ; Ajanović, Muhamed ; Korac, Samra ; Konjhodžić, Alma ; Džanković, Aida ; Vuković, Amra Biomechanics of cervical tooth region and noncarious cervical lesions of different morphology ; three-dimensional finite element analysis // The european journal of dentistry, 10 (2016), 3; 413-418. doi: 10.4103/1305-7456.184166

Podaci o odgovornosti

Jakupović, Selma ; Anić, Ivica ; Ajanović, Muhamed ; Korac, Samra ; Konjhodžić, Alma ; Džanković, Aida ; Vuković, Amra

engleski

Biomechanics of cervical tooth region and noncarious cervical lesions of different morphology ; three-dimensional finite element analysis

The present study aims to investigate the influence of presence and shape of cervical lesions on biomechanical behavior of mandibular first premolar, subjected to two types of occlusal loading using threedimensional (3D) finite element method (FEM). 3D models of the mandibular premolar are created from a micro computed tomography X-ray image: model of sound mandibular premolar, model with the wedge-shaped cervical lesion (V lesion), and model with saucer-shaped cervical lesion (U lesion). By FEM, straining of the tooth tissues under functional and nonfunctional occlusal loading of 200 (N) is analyzed. For the analysis, the following software was used: CTAn program 1.10 and ANSYS Workbench (version 14.0). The results are presented in von Mises stress. Values of calculated stress in all tooth structures are higher under nonfunctional occlusal loading, while the functional loading is resulted in homogeneous stress distribution. Nonfunctional load in the cervical area of sound tooth model as well as in the sub- superficial layer of the enamel resulted with a significant stress (over 50 [MPa]). The highest stress concentration on models with lesions is noticed on the apex of the V-shaped lesion, while stress in saucer U lesion is significantly lower and distributed over wider area. The type of the occlusal teeth loading has the biggest influence on cervical stress intensity. Geometric shape of the existing lesion is very important in the distribution of internal stress. Compared to the U-shaped lesions, V-shaped lesions show significantly higher stress concentrations under load. Exposure to stress would lead to its progression.

Abfraction; finite element method; noncarious cervical lesions; occlusion; stress

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Podaci o izdanju

10 (3)

2016.

413-418

objavljeno

1305-7456

1305-7464

10.4103/1305-7456.184166

Povezanost rada

Dentalna medicina

Poveznice
Indeksiranost