3-Dimensional finite element analysis of stress distribution of dental implants on the bone tissue around the neck region of the implant and on the implant surface with respect to bone density
Yükleniyor...
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
İnönü Üniversitesi Tıp Fakültesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Aim: The aim of this study was to investigate the maximum Von Misses stress values of implants with different diameters in patients
with different bone densities depending on the forces that are applied with different angles to the bone around the implant neck and
implant surface, by using finite element analysis method.
Material and Methods: 3.8 mm and 4.6 mm diameter dental implants of an implant system that had an in vitro laser-microtextured
neck design were used in this study. Computational models were generated for implants with different diameters which were placed
in the maxillary and mandibular 1st molar teeth using flat and oblique (20°angled) abutments. Vertical and oblique (30°angled) forces
of 300 N were applied to all models and the results were evaluated by finite element analysis.
Results: The results show that both vertical and oblique forces on the implants and placement of abutments in the flat and oblique
position caused tension in the bone around the neck of the implant and the implant surface. When the oblique and vertical loads
applied to the bone models were compared, the forces applied in the oblique direction exhibited a significant increase of Von Misses
stress values in the cortical bone around the crest module of the implant compared to the other group. In our study, the minimum
stress distribution with respect to the direction of the applied forces and placement positions of the abutments was obtained by
applying the implant and the force in the same direction (abutment straight, force vertical). However, in the groups with the angled
application of the force direction and the angled placement position of the abutments, the maximum Von Misses stress value
increased in the bone around the implant neck and implant surface.
Conclusion: Placing the implants at the right angle and within bone tissues with adequate cortical bone density around the implant
will ensure minimal stress values on both the supporting bone and the implant surface.
Açıklama
Anahtar Kelimeler
Bone density, Dental implant, Finite element stress analysis, Stress distribution
Kaynak
Annals of Medical Research
WoS Q Değeri
Scopus Q Değeri
Cilt
27
Sayı
4
Künye
Bektaş, A. Ç. ve Gülsün, B. (2020). 3-Dimensional finite element analysis of stress distribution of dental implants on the bone tissue around the neck region of the implant and on the implant surface with respect to bone density. Annals of Medical Research, 27(4), 1252-1257.
