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EVALUATION OF THE REPRODUCIBILITY IN CEPHALOGRAPHY USING ROENTGENOCEPHALOMETRICS AND PHOTOGRAPHIC SUBTRACTION

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Abstract

50¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î µ¿ÀÏÇÑ ÃÔ¿µÁ¶°Ç¿¡ ÀÇÇØ ¹Ýº¹ ÃÔ¿µµÈ Ãø¸ð µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁø
À» tracing°ú photographic subtractionÀ» ÀÌ¿ëÇÏ¿© µÎ°³ºÎ, °æºÎ, ¼³°ñ, Àεΰ­, Çô, Ãø¸ð¿¬Á¶
Á÷ºÎÀ§¿¡ tracing 43Ç׸ñ, photographic subtraction 19Ç׸ñÀÇ ±âÁØÁ¡À» ¼³Á¤ÇÏ¿© µÎ »çÁøÀÇ
Â÷À̸¦ Á¶»çÇÑ °á°ú´Â ´ÙÀ½°ú °°´Ù.
1. tracing¿¡ ÀÇÇؼ­´Â Æò±Õ ¹× Ç¥ÁØÆíÂ÷°¡ µÎ°³ºÎ 0.34¡¾0.62§®, °æºÎ 1.02¡¾1.59§®, ¼³°ñ
1.37¡¾1.78§®, Àεΰ­ 0.55¡¾1.16§®, Çô 0.51¡¾1.51§®, Ãø¸ð¿¬Á¶Á÷ 0.15¡¾0.36§®ÀÇ °ªÀ» ³ªÅ¸³»
¾ú´Ù.
2. Photographic subtraction¿¡ ÀÇÇؼ­´Â µÎ°³ºÎ 0.09¡¾0.35§®, °æºÎ 0.70¡¾0.95§®, ¼³°ñ
1.22¡¾1.33§®, Àεΰ­ 0.53¡¾0.86§®, Çô 0.27¡¾0.41§®ÀÇ °ªÀ» ³ªÅ¸³»¾ú´Ù.
#ÃÊ·Ï#
The reproducibility of cephalography in repeated exposures were studied by tracing
and photographic subtraction. The materials consisted of 50 pairs of ¡®same day¡¯
radiograph taken under identical conditions. The evaluation included skull, cervical
column, hyoid bone, pharynx, tongue, soft tissue profile resulting 43 items in tracing,
and 19 items in photographic subtraction.
The results obtained from the differences between each pair were as follows:
1. The means and standard deviations by tracing of skull, cervical column, hyoid bone,
pharynx, tongue, soft tissue profile were 0.34¡¾0.62§®, 1.02¡¾1.59§®, 1.37¡¾1.78§®, 0.55¡¾
1.16§®, 0.51¡¾1.51§®, 0.15¡¾0.36§® each.
2. The means and standard deviations by photographic subtraction of skull, cervical
column, hyoid bone, pharyux, tongue were 0.09¡¾0.35§®, 0.70¡¾0.95§®, 1.22¡¾1.33§®, 0.53¡¾
0.86§®, 0.27¡¾0.41§® each.

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