COLORANT FORMULATION OF POLYMERIC PROSTHETIC MATERIALS
COLORANT FORMULATION OF POLYMERIC PROSTHETIC MATERIALS
批准号:
3462040
负责人:
WILLIAM M JOHNSTON
金额:
$8.24万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
1988
资助国家:
美国
项目状态:
已结题
起止时间:
1988-07-01 至 1993-06-30
中文摘要
本研究的最终目标是开发、评估
并应用着色剂配方例程。这个例行公事将
说明聚合牙科和颌面部的组成
假体材料,以匹配自然组织的颜色和
在许多不同光源下尽可能接近不透明度。
现有的研究表明,恢复力反射的光线
瓷器材料由反射率精确建模
理论。这一理论然后可以用来定义颜色和
任何颜色不同的瓷器混合物的不透明度
颜料。然而,为瓷器找到的准确模型已经
不适用于着色聚合物材料。另一位模特,
通过使用附加的光学常数,已经被提出
对于丙烯酸材料,被发现可以预测更多的反射率
正是如此。
这项拟议的研究将首先确定适当的模型
这些假体材料的光学反射率。这项研究
然后将结合已开发的工程原理
关于具有新近颜色的混合物的光学性质
订购系统,以便导出着色剂配方程序
能够指定最佳颜色和半透明匹配
邻近的自然结构。
半透明的人体生命组织显示独特的光学
使外观不可能精确匹配的特征
对于所有日光、钨和荧光照明条件,请使用
目前可获得稳定的颜料。《中国日报》的重大意义
这项研究满足了人们对
最佳着色剂配方程序及其应用能力
评估现有的和新的可用的
颜料。这项研究的结果将增加
生产美观聚合物所需的工程知识
假肢。适用于因癌症造成严重面部创伤的患者
或者假肢。适用于因以下原因造成严重面部创伤的患者
癌症或伤害,适当的美学将鼓励成功
通过增强自尊和消除衰弱来恢复
心理压力。
英文摘要
The ultimate objectives of this research are to develop, evaluate
and apply a colorant formulation routine. This routine will
specify the composition of polymeric dental and maxillofacial
prosthetic materials in order to match natural tissue in color and
opacity as closely as possible under many different illuminants.
Existing research has shown that the light reflected by restorative
porcelain materials is accurately modeled by a reflectance
theory. This theory may then be used to define the color and
opacity of any mixture of porcelains and differently colored
pigments. However, the model found accurate for porcelain has
failed for pigmented polymeric materials. Another model,
through the use of additional optical constants, has been proposed
for acrylic materials and was found to predict reflectance more
precisely.
This proposed research will first identify the appropriate model of
optical reflectance of these prosthetic materials. This research
will then incorporate the developed engineering principles
regarding optical properties for mixtures with a recent color
order system in order to derive a colorant formulation procedure
capable of specifying the best color and translucency match with
neighboring natural structures.
Translucent vital human tissue displays unique optical
characteristics which make an exact appearance match impossible
for all daylight, tungsten, and fluorescent lighting conditions using
currently available stable pigments. The major significance of
this research is its fulfillment of the immediate need for an
optimum colorant formulation routine and its ability to be utilized
to evaluate the suitability of current and newly available
pigments. The results of this research will increase the
engineering knowledge needed to produce an esthetic polymeric
prosthesis. For patients with severe facial trauma due to cancer
or prosthesis. For patients with severe facial trauma due to
cancer or injury, proper esthetics would encourage successful
recovery by enhancing self-esteem and eliminating debilitating
psychological stress.
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COLORANT FORMULATION OF POLYMERIC PROSTHETIC MATERIALS
-
批准号:3462038
-
项目类别:
-
资助金额:$7.5万
-
财政年份:1988
-
负责人:WILLIAM M JOHNSTON
-
依托单位:
COLORANT FORMULATION OF POLYMERIC PROSTHETIC MATERIALS
-
批准号:3462039
-
项目类别:
-
资助金额:$8.29万
-
财政年份:1988
-
负责人:WILLIAM M JOHNSTON
-
依托单位:
COLORANT FORMULATION OF POLYMERIC PROSTHETIC MATERIALS
-
批准号:3462041
-
项目类别:
-
资助金额:$8.57万
-
财政年份:1988
-
负责人:WILLIAM M JOHNSTON
-
依托单位:
COLORANT FORMULATION OF POLYMERIC PROSTHETIC MATERIALS
-
批准号:3462037
-
项目类别:
-
资助金额:$9.49万
-
财政年份:1988
-
负责人:WILLIAM M JOHNSTON
-
依托单位:
SHORT-TERM TRAINING : STUDENT IN HEALTH PROFESSIONAL SCH
-
批准号:6175827
-
项目类别:
-
资助金额:$2.76万
-
财政年份:1985
-
负责人:WILLIAM M JOHNSTON
-
依托单位:
SHORT-TERM TRAINING : STUDENT IN HEALTH PROFESSIONAL SCH
-
批准号:2896953
-
项目类别:
-
资助金额:$2.62万
-
财政年份:1985
-
负责人:WILLIAM M JOHNSTON
-
依托单位:
SHORT-TERM TRAINING : STUDENT IN HEALTH PROFESSIONAL SCH
-
批准号:6379737
-
项目类别:
-
资助金额:$3.0万
-
财政年份:1985
-
负责人:WILLIAM M JOHNSTON
-
依托单位: