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Analysis of Occlusal Contacts Using Add-picture Method

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¹Ú°í¿î ( Park Ko-Woon ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±è´ë°ï ( Kim Dae-Gon ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¹ÚÂùÁø ( Park Chan-Jin ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
Á¶¸®¶ó ( Cho Lee-Ra ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

±³ÇÕÁ¢ÃË ºÐ¼®¿¡ ÀÌ¿ëµÇ´Â T-Scan ¥²¢ç (Tekscan, South Boston, MA, USA)ÀÇ Á¤È®µµ ¹× ½Å·Úµµ¸¦ Add picture ¹æ¹ýÀ» ÅëÇØ Æò°¡ÇÏ¿´´Ù. µÎ ¹æ¹ý¿¡¼­ °øÅëÀûÀÎ ±³ÇÕÁ¢ÃËÁ¡ÀÇ ºÐÆ÷ ¹× ±³ÇÕÁ¢Ã˸éÀûÀ» ºñ±³ÇÏ¿© ±³ÇÕÁø´Ü ¹× Á¶Á¤¼ú½Ä¿¡¼­ T-Scan ¹æ¹ýÀÇ Àû¿ë ½Ã °í·ÁÁ¡À» ¹àÈ÷°íÀÚ ÇÏ¿´´Ù.Angle ¥°±Þ ±³ÇÕ°ü°è, Á¤»óÄ¡¿­ÀÚ ÇÑ »ç¶÷ÀÇ ±¸°­À» ´ë»óÀ¸·Î ºÎ°¡ÁßÇÕÇü ½Ç¸®ÄÜÀλóÀ縦 ÀÌ¿ëÇÏ¿© »óÇϾÇÄ¡¿­±ÃÀ» 10ȸ ÀλóäµæÇÏ¿´À¸¸ç, 10½ÖÀÇ ÃÊ°æ¼®°í ¸ðÇüÀ» Á¦ÀÛÇÏ¿´´Ù. ÀÚüÁ¦ÀÛÇÑ ÇÏÁßÀåÄ¡¿¡ ¸ðÇüÀ» ÀÚ¼®°ú °æ¼®°í
¸¦ ÀÌ¿ëÇÏ¿© ºÎÂøÇÑ ÈÄ ÃÖ´ë°¨ÇÕÀ§¿Í ÃÖ´ë±³ÇÕ·ÂÀ» ÀçÇöÇϱâ À§ÇØ 78.9kgÀÇ ÇÏÁßÀ» °¡ÇÏ¿´´Ù. T-Scan ÃøÁ¤ ½Ã¿¡´Â
»óÇÏ¾Ç ¸ðÇü°ú T-Scan ¼¾¼­ÀÇ À§Ä¡°¡ º¯ÇÏÁö ¾Ê´Â »óÅ¿¡¼­ 2¹ø ¹Ýº¹ ÃøÁ¤ÇÏ¿´´Ù. Add PictureÀÇ °æ¿ì »óÇϾǸðÇüÀ» µ¿ÀÏÇÑ ÇÏÁßÀ» °¡ÇÏ¿© ÃÖ´ë°¨ÇÕÀ§¿¡¼­ Æú¸®ÀÌ½á ±³ÇÕÀαâÀ縦 ÀÌ¿ëÇÏ¿© ±³ÇÕÀ» ÀαâÇÏ¿´´Ù. ±³ÇÕÁ¢ÃË ¾ç»óÀº Á¢ÃËÁ¡ ¼ö¿Í ÃÑ ±³ÇÕ¸éÀû¿¡ ´ëÇÑ Á¢Ã˸éÀû ¹éºÐÀ²À» ÃøÁ¤ÇÏ¿© ºñ±³ÇÏ¿´´Ù. T-Scan ¹æ¹ýÀº Æ÷Åä¼¥ ÇÁ·Î±×·¥ »ó¿¡¼­ Çȼ¿¼ö¸¦ °è»êÇÏ¿© »ö»ó¿¡ µû¸¥ ¸éÀûÀ», Add picture ¹æ¹ýÀº ºû Åõ°ú Á¤µµ¿¡ µû¶ó ÀλóÀç µÎ²²¸¦ 0~10§­, 0~30§­,0~60§­ÀÇ 3°¡Áö·Î ³ª´©°í, ÀÌ¿¡ µû¸¥ ¸éÀûÀ» ½ÇÃøÇÏ¿© °è»êÇÏ¿´´Ù. ÃÑ ±³ÇÕ¸é¸éÀûÀº Á¢Ã˸éÀ» Ç¥½ÃÇÑ ¸ðÇüÀÇ ÃÔ¿µ»ó¿¡¼­ Çȼ¿¼ö¸¦ °è»êÇÏ¿© ÇÔ²² ÃÔ¿µµÈ °ÝÀÚ¸¦ ±âÁØÀ¸·Î Á¦°ö¹ÌÅÍ°ªÀ¸·Î º¯È¯ÇÏ¿´´Ù. ´ëÀÀÇ¥º» t-°ËÁ¤À» ÀÌ¿ëÇÏ¿© Åë°èºÐ¼®ÇÏ¿´´Ù.T-Scan ¹æ¹ý¿¡¼­ ºÐÈ«»ö»ó ¹× ºÓÀº »ö»óÀ¸·Î Ç¥½ÃµÈ ¸éÀûÀÇ ÀϺΰ¡ Add picture ¹æ¹ý¿¡¼­ 0~10§­, 0~30§­, 0~60§­ÀÇ »óÇÏ¾Ç Ä¡¾Æ °£ °Å¸®¿¡ ÇØ´çÇÏ´Â ¸éÀû¿¡ »óÀÀÇÏ¿´´Ù. ±³ÇÕÁ¢ÃËÁ¡ ºÐÆ÷ ºñ±³ ½Ã T-Scan ¹æ¹ý°ú Add picture¹æ¹ýÀº À¯»çÇÏ¿´´Ù. ±³ÇÕÁ¢Ã˸éÀû ºñ±³ ½Ã T-Scan ¹æ¹ý¿¡¼­ È®´ëµÈ °á°ú°¡ °üÂûµÇ¾úÀ¸¸ç, Àüü±³ÇÕ¸éÀû¿¡ ´ëÇÑ Á¢Ã˸éÀû ¹éºÐÀ² ºñ±³¿¡¼­µµ T-Scan ¹æ¹ý°ú Add picture ¹æ¹ýÀÇ ¹éºÐÀ²°ªÀº À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(P<.05). T-Scan¿¡
¼­ ºÐÈ«»ö»ó ¹× ºÓÀº »ö»óÀ¸·Î Ç¥½ÃµÈ ºÎÀ§ÀÇ ¸éÀû°ªÀº Add pictureÀÇ 0~10§­, 0~30§­ ºÎÀ§ÀÇ ¸éÀû°ªº¸´Ù Å©°í (P<.05), 0~60§­ ºÎÀ§¿Í´Â À¯»çÇÑ °ªÀ» º¸¿´´Ù(P>.05). T-Scan¿¡¼­ÀÇ ±³ÇÕÁ¢ÃË»óÀº ½ÇÁ¦º¸´Ù È®´ëµÇ¾î ³ªÅ¸³µÀ¸¸ç,
µû¶ó¼­ ±³ÇÕÁ¢ÃË¿¡ ´ëÇÑ Áø´Ü ¹× Á¶Á¤ ¼ú½Ä¿¡¼­ º¸Á¶ÀûÀÎ ¼ö´ÜÀ¸·Î È°¿ëÇÏ´Â °ÍÀÌ ÃßõµÈ´Ù.

The purpose of this study was to analyze the area of occlusal contact points using visual method. One subject was
selected who had Angle Class ¥°, normal dentition, without dental caries, periodontal disease and temporomandibular
disorders. Forty times PVS impressions were taken and 10 pairs casts were fabricated using dental super hard stone. After
mounting the casts with customized loading apparatus, 78.9kg/f force was loaded as a maximum biting force. In T-Scan
method, occlusal contact points measurement was repeated twice. Then, using Photoshop program (Adobe photoshop CS3,Adobe. San Jose, USA), the pixels which indicated occlusal contact points by color was recognized, and the distribution of recognized pixels were calculated to area. In Add picture method, polyether bite material applied to the occlusal surface of the casts. Then, the image of the translucent areas was recorded and classified 0~10§­, 0~30§­, 0~60§­ area by the amount of transmitted light. To acquire occlusal surface, the numbers of pixels from the photograph of the contact area indicated cast converted to mm2. The mean occlusal contact area by two methods was statistically analyzed (paired t-test).Part of the red and pink area in T-Scan image were almost equivalent to the 0~10§­, 0~30§­, 0~60§­ area in Add picture image. The distribution of occlusal contact points were similar, but the average area of occlusal contact points was wider in T-scan image (P<.05). Pink and red area in T-scan image was wider than 0~10§­, 0~30§­ area in Add picture image (P<.05), but similar to 0~60§­area in Add picture image (P>.05). Occlusal contact points in T-scan image did not indicate real occlusal contact points. Occlusal contact areas in T-scan method were enlarged results comparing with those in Add picture method.

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T-Scan ¥²¨Þ;Add picture;±³ÇÕÁ¢ÃËÁ¡;±³ÇÕÁ¢Ã˸éÀû;±¤Åõ°ú¹ý
T-Scan ¥²¢ç;Add picture;occlusal contact point;occlusal contact area;light transmission method

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