Laser-Engineered Net Shape Ti/HA Composite Implants
激光设计的净形状 Ti/HA 复合植入物
基本信息
- 批准号:6443481
- 负责人:
- 金额:$ 10万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2002
- 资助国家:美国
- 起止时间:2002-09-30 至 2004-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
DESCRIPTION: Endosseous Dental implants are in common use today throughout the
world to treat single tooth loss and well as to support dentures. Tissue
response to a Dental implant correlates with the composition, surface
chemistry, and surface microgeometry of the implant material. The bioactivity
of titanium alloy is to be improved through the addition of hydroxyapatite (HA)
powder utilizing Laser Engineered Net Shaping (LENS) technology. CP titanium
and 6Al-4V-Ti alloy have good biocompatibility but low bioactivity resulting in
variable bone response to the implant surface. It is believed that a calcium
rich surface potentiates platelet activation and improves fibrin binding to the
implant surface. Surface modification through laser microgrooving and chemistry
modification through LENS should result is more rapid bone growth and
apposition up to the implant surface. The LENS process offers the opportunity
to manufacture a unique HA impregnated Ti alloy Dental implant with a cost and
ease similar to current manufacturing modalities incorporating optimum surface
microgeometry, mechanical design, base material composition and surface
chemistry. Such an implant could be implanted and loaded at the time of tooth
extraction providing the patient with a cost effective new tooth after just one
or two sittings, instead of the usual 3 to 6 months.
描述:牙内种植体在当今世界广泛使用
项目成果
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Harold Alexander其他文献
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