Establishment of the transmission method for the tooth color and form

本课题旨在建立一种准确的牙齿颜色传输方法。临床上常用牙形及色度指南评价牙齿颜色。但这些牙齿颜色的样品是由牙科制造商的牙瓷制成的。有时在这些牙齿颜色样本中显示的颜色不一致。因此，我们需要一种客观地将牙齿颜色从临床传递到牙科实验室的方法。方法在良好的光线环境下使用数码相机进行牙齿颜色测量。我们选择了白色led灯，以产生良好的光线来拍摄患者的牙齿。这盏灯的色温显示为5500K，这个温度非常接近自然白光。通过使用这些白色led发出的光，我们可以准确地拍摄照片。拍照后，通过电子邮件或局域网系统将牙齿颜色数据传送到牙科实验室。使用白光LED和数码相机的优点是寿命长，稳定性好。在患者病例中，我们使用这些方法制作面冠。评价患者牙冠的牙色时，牙色与患者的牙齿吻合，准确度较高。

The aim of this project is establishment the transmission method for the dental tooth color with accuracy.To evaluate the dental tooth color is using the tooth form and shading guide in the clinic usually. But these tooth color of the samples are made of the dental porcelain in the dental manufactures. Sometimes in these tooth color samples don't show the same color. So, we need the methods to transmit the tooth color from the clinic to the dental laboratory with objectively.MethodsThe way of measuring the tooth color is using the digital camera under the good light surroundings. We selected the white LEDs for making the good light to take the pictures of the patient's teeth. This light's color temperature indicated the 5500K This temperature is very closed to the natural white light. In using these lights from the white LEDs, we can take the pictures in accuracy. After taking the pictures, we transmit the tooth color date to the dental laboratory with the e-mail or Lan systems. The merits of using the white LED and the digital camera are having the long life terms and good stability.In the patients cases, we used these methods for making the facing crowns. For evaluating the tooth color of the patient's facing crowns, these teeth color is fit to the patient's teeth with much accuracy.