𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Design of functionally graded dental implant in the presence of cancellous bone

✍ Scribed by H. S. Hedia

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
220 KB
Volume
75B
Category
Article
ISSN
1552-4973

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In a previous work by the author [Hedia HS, Mahmoud NA. Biomed Mater Eng 2004;14(2):133–143], a functionally graded material (FGM) dental implant was designed without cancellous bone in the model. In this investigation, the effect of the presence of cancellous bone as a thin layer around the dental implant was investigated. It is well known that the main inorganic component of natural bone is hydroxyapatite (HAP) and that the main organic component is collagen (Col). HAP implants are not bioabsorbable, and because induction of bone into and around the artificially made HAP is not always satisfactory, loosening or breakage of HAP implants might occur after implantation in the clinical application. The development of a new material that is bioabsorbable and that has osteoconductive activity is needed. Therefore, the aim of the current investigation was to design an implant, in the presence of cancellous bone as a thin layer around it, from FGM. In this study, a novel biomaterial, Col/HAP, as a FGM, was developed using the finite element and optimization techniques that are available in the ANSYS package. These materials have a self‐organized character similar to that of natural bone. The investigations have shown that the maximum stress in the cortical bone and cancellous bone for the Col/HAP functionally graded implant has been reduced by about 40% and 19%, respectively, compared with currently used titanium dental implants. © 2005 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2005

📜 SIMILAR VOLUMES

A histological and histomorphometrical e
A histological and histomorphometrical evaluation of the application of screw-designed calciumphosphate (Ca-P)-coated implants in the cancellous maxillary bone of the goat
✍ Caulier, H. ;van der Waerden, J. P. C. M. ;Wolke, J. G. C. ;Kalk, W. ;Naert, I. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 512 KB

Various studies already have shown that the occurrence of oral implant failure is higher in the maxilla than in the mandible. To learn whether Ca-P coatings can improve the success rate of oral implants in the maxilla, three different plasma-sprayed, Ca-P-coated, self-tapping Brånemark implants were

Analysis of gene expression in osteogeni
Analysis of gene expression in osteogenic cultured marrow/hydroxyapatite construct implanted at ectopic sites: A comparison with the osteogenic ability of cancellous bone
✍ Yoshikawa, T. ;Ohgushi, H. ;Akahane, M. ;Tamai, S. ;Ichijima, K. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 375 KB 👁 2 views

We investigated the in vivo osteogenic ability of cultured marrow cells subcultured in porous hydroxyapatite. This osteogenic ability was compared with that of cancellous bone grafts. Fresh marrow cells were obtained from young adult rat femora and cultured in a standard medium for 10 days, then try

A study on the effect of dual blasting w
A study on the effect of dual blasting with TiO2 on titanium implant surfaces on functional attachment in bone
✍ Hans Jacob Rønold; Ståle Petter Lyngstadaas; Jan Eirik Ellingsen 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 395 KB 👁 1 views

## Abstract In the present study, the effect of a dual treatment of titanium implants and the subsequent bone response after implantation were investigated. Coin‐shaped c.p. titanium implants were placed into the tibias of 12 rabbits. The implant, which was dually blasted with TiO~2~ particles of t