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THE CHANGE OF FILM CHARACTERISTICS ACCORDING TO THE PROCESS OF USING TIME OF PROCESSING SOLUTION

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Abstract

ÀÚµ¿ Çö»ó±â¸¦ ÀÌ¿ëÇÏ¿© X-¼±¿¡ ³ë±¤µÇÁö ¾ÊÀº Çʸ§À» Çö»óÇÏ¿©, Çö»ó¾×ÀÇ »ç¿ë ½ÃÀÏ °æ
°ú¿¡ µû¸¥ base+fog ÈæÈ­µµ¸¦ ÃøÁ¤ÇÏ°í, impulseÀ» 5, 6À¸·Î ÃÔ¿µÇÏ¿© Çʸ§ ÈæÈ­µµ, ÇÇ»çü
´ëÁ¶µµ¸¦ ÃøÁ¤ÇÏ°í, Çö»ó¾×°ú Á¤Âø¾×ÀÇ pH º¯È­¸¦ ÃøÁ¤ÇÏ¿© ´ÙÀ½°ú °°ÀÌ °á°ú¸¦ ¾ò¾ú´Ù.
1. base+fog ÈæÈ­µµ´Â Çö»ó¾×ÀÇ »ç¿ë ½ÃÀÏÀÌ Áö³²¿¡ µû¶ó Áõ°¡µÇ¾úÀ¸¸ç, 3ÀÏ°ºÎÅÍ´Â ÃÖ
´ë Çã¿ë base+fog ÈæÈ­µµ 0.25¸¦ ÃÊ°úÇÏ¿´´Ù.
2. Çʸ§ ÈæÈ­µµ´Â Çö»ó¾×ÀÇ »ç¿ë ½ÃÀÏÀÌ Áö³²¿¡ µû¶ó Áõ°¡ÇÏ¿´´Ù.
3. ÇÇ»çü ´ëÁ¶µµ´Â Çö»ó¾×ÀÇ »ç¿ë ½ÃÀÏÀÌ Áö³²¿¡ µû¶ó °¨¼ÒÇÏ¿´´Ù.
4. Çö»ó¾×ÀÇ PH´Â »ç¿ë ½ÃÀÏÀÌ Áö³²¿¡ µû¶ó °¨¼ÒÇÏ¿´À¸¸ç, Á¤Âø¾×ÀÇ pH´Â Áõ°¡ÇÏ¿´´Ù.
#ÃÊ·Ï#
This study was undertakened to investigate the change of image characteristics on
dental films according to the process of using time of processing solution in automatic
processor.
Base+fog density, film density and subject contrast were measured with the digital
densitometer, the pH of developing and fixing solution were measured with Digital
pH/ION Meter.
The following results were obtained :
1. Base+fog density was increased with the process of using time of the processing
solution and was over the maximum permissible base+fog density 0.25 from the 3rd day.
2. Film density was increased with the process of using time of the processing
solution.
3. Subject contrast was decreased with the process of using time of the processing
solution.
4. The pH of the developing solution was decreased with the process of using time,
the pH of the fixing solution was increased.

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