Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

±Ô°ÝÈ­µÈ ±¸³» Ç¥ÁØ ¹æ»ç¼±»çÁøÀÇ °è¼ö °øÁ¦ ¹æ»ç¼±ÇÐÀû Æò°¡

DIGITAL SUBTRACTION RADIOGRAPHIC EVALUATION OF THE STANDARDIZED PERIAPICAL INTRAORAL RADIOGRAPHS

Ä¡°ú¹æ»ç¼± 1993³â 23±Ç 1È£ p.125 ~ 139
Á¶ºÀÇý, ³ª°æ¼ö,
¼Ò¼Ó »ó¼¼Á¤º¸
Á¶ºÀÇý (  ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú¹æ»ç¼±ÇÐ
³ª°æ¼ö (  ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú¹æ»ç¼±Çб³½Ç

Abstract

5Á¾·ùÀÇ ±³ÇÕ¸é ÀλóÀ縦 À§Ä¡ ±Ô°ÝÈ­ ÀåÄ¡·Î ÀÌ¿ëÇÏ¿© ±³ÇÕÆÇ Á¦ÀÛÁ÷ÈÄ¿Í 1ÀÏ,
2,4,8,12,16ÁÖÈÄ¿¡ °¢µµº¯À̾øÀÌ ¹æ»ç¼± »çÁøÀ» ÃÔ¿µÇÏ¿© °Ô¼ö °øÁ¦ ¹æ»ç¼± »çÁøÀ» Á¦ÀÛ, ´Ù
¾çÇÑ ¹æ¹ýÀ¸·Î ±× ÁúÀ» Æò°¡ÇÔÀ¸·Î½á °¢ ÀλóÀçÀÇ ÃÔ¿µ¿¡ ´ëÇÑ ±âÇÏÇÐÀû ÀçÇö¼º Á¤µµ¸¦ °Ë
ÅäÇÏ¿© º» ¹Ù¿Í ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. °è¼ö °øÁ¦ ¹æ»ç¼± »çÁøÀÇ Àüü»óÀÇ È¸»öµµÀÇ Ç¥ÁØÆíÂ÷´Â °¢°¢ Exaflex 4.9, Pattern
Resin 7.2, Tooth Shade Acrylic 9.0, XCP only 12.2, Impregum 14.8ÀÇ °ªÀ» ³ªÅ¸³»¾úÀ¸¸ç
Ç¥ÁØÆíÂ÷ÀÇ °ªÀÌ ÀÛÀ»¼ö·Ï °è¼ö °øÁ¦ ¹æ»ç¼± »çÁøÀÇ ÁúÀº ´õ ¿ì¼öÇÏ¿´´Ù.
2. Àüü»óÀÇ È¸»öµµÀÇ Ç¥ÁØÆíÂ÷ °ª°ú ÀÏÁ¤ÇÑ ¼öÆò ±âÁؼ±¿¡¼­ÀÇ Ç¥ÁØÆíÂ÷ °ªÀÌ ´ëü·Î ÀÏ
Ä¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù.
3. °è¼ö °øÁ¦ ¹æ»ç¼± »çÁøÀÌ °¡Àå ¿ì¼öÇÏ¿´´ø Exaflex´Â Á÷¼±Çü 15»ó, ¹°°áÇü 14»ó, ºÀ¿ì
¸®Çü 1»óÀ¸·Î, °¡Àå ºÒ·®ÇÏ¿´´ø ImpregumÀº Á÷¼±Çü 4»ó, ¹°°áÇü 8»ó, ºÀ¿ì¸®Çü 18»óÀ¸·Î ³ª
Ÿ³µ´Ù.
#ÃÊ·Ï#
The geometrically standardized intraoral radiographs using 5 occlusal registration
materials were taken serially from immediate, 1 day, 2,4,8,12, and 16 weeks after making
the bite blocks. And the resultant images were digitally subtracted using the
immediately taken film as reference images. The qualities of those subtracted images
were evaluated to check the degree of reproducibility of each impression material.
The results were as follows :
1. The standard deviations of the grey scales of the overall subtracted images were
4.9 for Exaflex, 7.2 for Pattern resin, 9.0 for Tooth Shade Acrylic 12.2 for XCP only,
14.8 for Impregum.
the lesser the standard deviation, the better the quality of the subtracted images.
2. The standard deviation of the grey scales of the overall subtracted images were
grossly related to those of the localized horizontal line of interest.
3. Exaflex which showed the best subtracted image quality had 15 cases of straight,
14 cases of wave, 1 case of canyon shape. Impregum which showed the worst
subtracted image quality had 4 cases of straight, 8 cases of wave, 18 cases of canyon
shape respectively.

Å°¿öµå

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

  

µîÀçÀú³Î Á¤º¸