The Effect of Thread Design on Stress Distribution in a Solid Screw Implant: A 3D Finite Element Analysis
Yükleniyor...
Dosyalar
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SPRINGER HEIDELBERG
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The biomechanical behavior of implant thread plays an important role on stresses at implant-bone interface. Information about the effect of different thread profiles upon the bone stresses is limited. The purpose of this study was to evaluate the effects of different implant thread designs on stress distribution characteristics at supporting structures. In this study, three-dimensional (3D) finite element (FE) stress-analysis method was used. Four types of 3D mathematical models simulating four different thread-form configurations for a solid screw implant was prepared with supporting bone structure. V-thread (1), buttress (2), reverse buttress (3), and square thread designs were simulated. A 100-N static axial occlusal load was applied to occlusal surface of abutment to calculate the stress distributions. Solidworks/Cosmosworks structural analysis programs were used for FE modeling/analysis. The analysis of the von Mises stress values revealed that maximum stress concentrations were located at loading areas of implant abutments and cervical cortical bone regions for all models. Stress concentration at cortical bone (18.3 MPa) was higher than spongious bone (13.3 MPa), and concentration of first thread (18 MPa) was higher than other threads (13.3 MPa). It was seen that, while the von Mises stress distribution patterns at different implant thread models were similar, the concentration of compressive stresses were different. The present study showed that the use of different thread form designs did not affect the von Mises concentration at supporting bone structure. However, the compressive stress concentrations differ by various thread profiles.
Açıklama
Anahtar Kelimeler
Implant Thread Form Design, Dental Implants, Biomechanics, Finite Element Analysis, Stress Distribution
Kaynak
Clinical Oral Investigations
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
14
Sayı
4
Künye
Eraslan, O., İnan, Ö., (2010). The Effect of Thread Design on Stress Distribution in a Solid Screw Implant: A 3D Finite Element Analysis. Clinical Oral Investigations, 14(4), 411-416. Doi:10.1007/s00784-009-0305-1
