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THE RELIABILITY OF LASER DOPPLER FLOWMETER IN PULP VITALITY TEST OF TEETH

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Abstract

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¹Ì¿Ï¼º Ä¡±ÙÀ» °¡Áø ¿µ±¸ ÁßÀýÄ¡¿¡ ´ëÇÑ Ä¡¼ö»ýÈ°·Â°Ë»ç¿¡¼­ LDFÀÇ ½Å·Úµµ¸¦ ¾Ë¾Æº¸±â
À§ÇØ 8-9¼¼ÀÇ ÃëÇÐ ¾Æµ¿ 35¸íÀ» ´ë»óÀ¸·Î Àü±âÄ¡¼ö°Ë»ç ¹× LDF¿¡ ÀÇÇÑ Ä¡¼ö»ýÈ°·Â °Ë»ç¸¦
½ÃÇàÇÏ°í ´ëÁ¶±ºÀ¸·Î 23-24¼¼ ¼ºÀÎ ³²³à 35¸íÀÇ »ó¾Ç ¿µ±¸ÁßÀýÄ¡¸¦ ´ë»óÀ¸·Î µ¿ÀÏÇÑ °Ë»ç
¸¦ ½ÃÇàÇÏ¿´´Ù.
¹Ì¿Ï¼º Ä¡±Ù´ÜÀ» °¡Áø Ä¡¾Æ´Â ¹æ»ç¼± »çÁø»ó MoorreesµîÀÇ ¿¬±¸¸¦ ÂüÁ¶ÇÏ¿© Ä¡±Ù ¹ßÀ° 5
¹× 6´Ü°è·Î ÇÑÁ¤ÇÏ¿´´Ù.
Àü±âÄ¡¼ö°Ë»ç´Â ÃÖÃÊÀÇ °¨°¢ÀÌ ³ªÅ¸³ª´Â ½Ã±â¸¦ ¿ªÄ¡·Î Á¤ÇÏ¿´À¸¸ç, ´ë»ó Ä¡¾Æ´ç 3ȸ ÀÌ
»ó ½Ç½ÃÇÏ¿´°í, À§À½¼º ¹ÝÀÀÀÇ °¡´É¼º ¶§¹®¿¡ °Ë»ç°£ °£°ÝÀº 3ºÐ ÀÌ»óÀ¸·Î ÇÏ¿´´Ù. LDF´Â
¾ÈÁ¤µÈ signalÀÌ ³ªÅ¸³¯ ¶§ ±îÁö 5ºÐ ÀÌ»ó °üÂûÇÏ¿´À¸¸ç, ¾ÈÁ¤»óÅ µµ´Þ ÈÄ 5ºÐ ÀÌ»ó ÃøÁ¤ÇÏ
¿´´Ù. ¸ðµç ¹ÝÀÀÀÎÀÚÀÇ Á¤±Ô ºÐÆ÷¸¦ È®ÀÎÇÑ ´ÙÀ½, ´ëÁ¶ Ä¡¾Æ ¹× ½ÃÇè Ä¡¾Æ°£ LDF ¹× Àü±â
Ä¡¼ö°Ë»çÀÇ ¿ªÄ¡¸¦ student t-test¸¦ ÀÌ¿ëÇÏ¿© ºñ±³ÇÏ¿´´Ù.
1. Àü±âÄ¡¼ö°Ë»ç½Ã ¹Ì¿Ï¼º Ä¡±Ù¿¡¼­´Â 28.4%¿¡¼­¸¸ ¹ÝÀÀÀÌ ³ªÅ¸³µÀ¸¸ç, ¿Ï¼º Ä¡±ÙÀÇ °æ¿ì
100%¿¡¼­ ¹ÝÀÀÀÌ ³ªÅ¸³µ°í, LDF¿¡ ÀÇÇÑ °Ë»ç½Ã ¹Ì¿Ï¼º Ä¡±Ù ¹× ¿Ï¼º Ä¡±Ù ¸ðµÎ¿¡¼­ 100%
¹ÝÀÀÀÌ ³ªÅ¸³µ´Ù.
2. ¿Ï¼º Ä¡±Ù ¹× ¹Ì¿Ï¼º Ä¡±ÙÀ» °¡Áø Ä¡¾ÆÀÇ Àü±âÄ¡¼ö°Ë»ç ¿ªÄ¡´Â ¹Ì¿Ï¼º Ä¡±ÙÀ» °¡Áø Ä¡
¾Æ°¡ Å«°ªÀ» ³ªÅ¸³»¸ç À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù(p<0.01).
3. ¿Ï¼º Ä¡±Ù ¹× ¹Ì¿Ï¼º Ä¡±ÙÀ» °¡ÁøÄ¡¾Æ »çÀÌÀÇ LDF ¼öÄ¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ³ªÅ¸³ªÁö ¾Ê
¾Ò´Ù(p>0.05).
#ÃÊ·Ï#
The purpose of this study was to evaluate the reliablity of laser Doppler flowmeter on
the permanent maxillary central incisors with open apex.
Laser Doppler flowmeter and electric pulp tests were done in 35 elementary students
aged between 8 and 9 years and 35 females and males aged between 23 and 24 years.
Teeth with open apex were confined to root developmental stage 5 and 6 by Moorrees
classification.
The threshold of electric pulp tests was decided the time of tingling sensation.
More than three different electric pulp tests applied on every teeth with more than 3
minutes interval between each teeth due to the false response. Laser Doppler flowmeter
test stablilzation and observation stages took more than 5 minutes each
LDF values and electric pulp test thresholds were analyzed with student t-test.
The results were as follows :
1. The electric pulp test threshold on teeth with immature and mature roots showed
28.4% and 100% response respectively, and the LDF values on teeth with immature and
mature roots showed 100% response.
2. The EPT thresholds on teeth with immature roots were larger than thresholds on
teeth with mature roots(p<0.01).
3. No significant differences were found in the LDF values on teeth with immature
and mature roots.

Å°¿öµå

electric pulp test; laser Doppler flowmeter; pulp vitality test;

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