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3-d Stress Analysis in First Maxillary Premolar (CROSBI ID 135855)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Borčić, Josipa ; Antonić, Robert ; Muhvić Urek, Miranda ; Petričević, Nikola ; Nola-Fuchs, Petra ; Ćatić, Amir ; Smojver, Ivica 3-d Stress Analysis in First Maxillary Premolar // Collegium antropologicum, 31 (2007), 4; 1025-1029

Podaci o odgovornosti

Borčić, Josipa ; Antonić, Robert ; Muhvić Urek, Miranda ; Petričević, Nikola ; Nola-Fuchs, Petra ; Ćatić, Amir ; Smojver, Ivica

engleski

3-d Stress Analysis in First Maxillary Premolar

The aim of this study was to investigate the stress distribution in a 3-D model of two-rooted tooth (first maxillary premolar) under two different occlusal force vectors by using finite element analysis (FEA). In the first model overall force of 200 N was divided into three vectors (cusp to fossa occlusion), and in the second model overall force was divided into 4 vectors (cusp to fossa and cusp to marginal ridge occlusion). The greatest compressive stress was found at the dentino-enamel junction in the cervical area of the both models (about -200 MPa). The greatest tensile stress was found at the vestibular aspect of buccal cusp in second model (about +3 MPa) and in the central fossa of the both models (about +28 MPa). Results indicate that in the both types of occlusal loadings the stress distribution was mainly compression and compressive forces were predominant over tensile forces. In the second model with 4 vectors, stresses generated in the tooth structure were higher compared to the stresses generated in the first model with 3 vectors.

finite element analysis; first maxillary premolar; stress distribution; two-rooted tooth

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Podaci o izdanju

31 (4)

2007.

1025-1029

objavljeno

0350-6134

Povezanost rada

Dentalna medicina

Poveznice
Indeksiranost