About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Next Generation Biomaterials
|
Presentation Title |
Stereolithographic Additive Manufacturing of Dental Crowns with Functionally Distributed Translucencies |
Author(s) |
Soshu Kirihara |
On-Site Speaker (Planned) |
Soshu Kirihara |
Abstract Scope |
In stereolithographic additive manufacturing, cross sectional patterns were created through photo polymerization by ultraviolet laser drawing on spread resin paste including ceramic nanoparticles, and solid models were sterically printed by layer lamination with chemical bonding. Through the smart additive manufacture, design and evaluation, bioceramic implants of dental crowns were fabricated successfully. Zirconia nanoparticles with different yttria contents were selected and dispersed into photo sensitive liquid resins from 40 to 60 % in volume fraction. The paste was spread on a glass substrate at 10 μm in layer thickness. An ultraviolet laser beam of 355 nm in wavelength was adjusted from 10 to 300 μm in variable diameter and scanned on the pasted resin surface. Irradiation power was changed automatically from 10 to 200 mW. The created precursor was dewaxed and sintered in an air atmosphere to obtain full ceramic components. |