Preparation and properties of carbon dental implant with fine rahmen surface layer
✍ Scribed by Akira Kojima; Sugio Ōtani; Terushi Iwata; Sadakatsu Yanagisawa; EikŌ Sairenji; Kunio Niijima
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 905 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
and tooth-root-form carbon dental implants were prepared by fixing fine Rahmen surface (FRS) layers of carbon fabric on a carbon fiber-reinforced carbon (CFRC) core. The fixing was successfully performed through the low-temperature deposition of pyrolytic carbon using cis-1,2dichloroethylene as the raw material. The resultant implants showed flexural and compressive strength more than 150 and 100 MPa, respectively. The outer part of this FRS layer contained many pores ranging from 30 to 300pm in diameter and 40-75x in volume fraction.
New bone was generated in the open pores after being embedded in the femur of a monkey for 6 months. The shear strength of the embedded implant vs bone interface was 15 MPa. On the other hand, the blade-form FRS implant in the mandible of a monkey gave a locking system consisting of "bone-collagen fiber-calcified laver" after two vears under a masticating pressure. The latter is very similar to the natural tooth system.