Kaffe I, Littner M M, Kuspet M E
Oral Surg Oral Med Oral Pathol. 1984 Mar;57(3):338-42. doi: 10.1016/0030-4220(84)90191-9.
Recently a new speed E intraoral dental x-ray film was introduced by the Eastman Kodak Company in order to reduce the radiation dose to the patient. In the present study the new higher-speed EP21 film was compared with the speed D DF58 film with regard to speed and quality (fog plus base, sharpness, resolution, and contrast) of the resulting images. Results showed no deterioration in the image with 50% dose reduction when the EP21 film was used as compared to the DF58 film. Therefore, this new type of film is highly recommended for routine radiographic examinations.
最近,伊士曼柯达公司推出了一种新型的E速口腔内牙科X线胶片,以减少患者所接受的辐射剂量。在本研究中,就所得图像的速度和质量(灰雾加片基、清晰度、分辨率和对比度)而言,将新型高速EP21胶片与D速DF58胶片进行了比较。结果表明,与DF58胶片相比,使用EP21胶片时,在剂量降低50%的情况下图像质量并未下降。因此,强烈推荐这种新型胶片用于常规X线检查。