Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ ºí¶ô Á¦ÀÛÀ» À§ÇÑ »èÁ¦µÈ Ä¡¾ÆÀÇ Æò±Õ Å©±â ºÐ¼®

The dimension analysis of prepared natural teeth for developing customized zirconia block

´ëÇÑÄ¡°úº¸Ã¶ÇÐȸÁö 2017³â 55±Ç 4È£ p.381 ~ 388
±è¹ÎÇõ, ±è¼ºÈÆ, ¿©Àμº, À±ÇüÀÎ, ÀÌÀçÇö, ÇÑÁß¼®,
¼Ò¼Ó »ó¼¼Á¤º¸
±è¹ÎÇõ ( Kim MIn-Hyuk ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
±è¼ºÈÆ ( Kim Sung-Hun ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
¿©Àμº ( Yeo In-Seong ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
À±ÇüÀΠ( Yoon Hyung-In ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
ÀÌÀçÇö ( Lee Jae-Hyun ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
ÇÑÁß¼® ( Han Jung-Suk ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¸ñÀû:Áö¸£ÄڴϾƴ ¼Ò°á °úÁ¤¿¡¼­ 3Â÷¿øÀûÀ¸·Î ¼öÃàÀÌ ÀϾ±â ¶§¹®¿¡, ¿øÇÏÁö ¾Ê´Â üÀû º¯È­¿¡ µû¸¥ ¿ÀÂ÷°¡ Á¸ÀçÇÏ¿© ¿ÏÀü ¼Ò°áµÈ Áö¸£ÄڴϾƸ¦ ¹Ð¸µÇÏ¿©, ¿ÀÂ÷¸¦ ÁÙÀÌ·Á´Â ³ë·ÂÀÌ ÀÖ¾úÀ¸³ª, Àç·áÀÇ ´Ü´ÜÇÔÀ¸·Î ÀÎÇØ ¹Ð¸µ ½Ã°£ÀÌ ¿À·¡ °É¸®°í, ¹Ð¸µ±â±¸¿¡ ¼Õ»óÀÌ »ý±æ ¼ö ÀÖ°í, ±â°ø °úÁ¤ ÁßĨ »ý¼ºÀÌ ÀÖÀ» ¼ö ÀÖ´Ù. »èÁ¦µÈ Ä¡¾ÆÀÇ Æò±Õ°ªÀ» ±¸ÇÏ¿© Á¦ÀÛµÈ ¸ÂÃã Áö¸£ÄÚ´Ï¾Æ ºí¶ôÀº ÀÌ·¯ÇÑ ´ÜÁ¡À» ±Øº¹ ÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù.

Àç·á ¹× ¹æ¹ý:»èÁ¦µÈ Ä¡¾ÆµéÀ» ¸ðµ¨È­ÇÏ¿© ½ºÄµ ÈÄ ¾ò¾îÁø STL fileÀ» ÀÌ¿ëÇÏ¿©, Ä¡¾Æ Å©±â¸¦ ºÐ¼®ÇÏ¿´´Ù. Mimics ¹× Æ÷Åä¼¥À» »ç¿ëÇÏ¿© °¢°¢ÀÇ Ä¡¾ÆÀÇ È¾´Ü¸é, ÀüµÎ¸é, ½Ã»ó¸é, ¼¼ ¸éÀ» ±âÁظéÀ¸·Î Á¤ÇÏ¿©, °¢°¢ÀÇ ¸é¿¡ 3D volumeÀ» Åõ¿µ ÈÄ ¿Ü°ûÀÇ Å©±â´Â ¿Ü°û Á¢¼±À» ÅëÇØ, ³»°ûÀÇ Å©±â´Â ³»ºÎ ȦÀÇ »ó´Ü ºÎ º¯°îÁ¡¿¡ Á¢¼±À» ±¸ÇÏ¿© °¢°¢ Ä¡¾ÆÀÇ Å©±â¸¦ ºÐ¼®ÇÏ¿´´Ù.

°á°ú:ÃøÁ¤¿¡¼­ º¸¿©ÁØ »èÁ¦µÈ ÀüÄ¡±º(N = 57) Ä¡¾ÆÀÇ Æò±Õ Ä¡°ü ±æÀÌ´Â 6.60 ¡¾ 1.05 mm, ±Ù¿ø½É 2.98 ¡¾ 0.73 mm, Çù¼³ 2.04 ¡¾ 0.73 mm ÀÌ°í, ¼Ò±¸Ä¡±º(N = 15) Ä¡¾ÆÀÇ Æò±Õ Ä¡°ü ±æÀÌ´Â 5.37 ¡¾ 1.49 mm, ±Ù¿ø½É 4.10 ¡¾ 1.78 mm, Çù¼³ 5.86 ¡¾ 1.55 mm, ´ë±¸Ä¡±º(N = 13) Ä¡¾ÆÀÇ Æò±Õ Ä¡°ü±æÀÌ´Â 5.11 ¡¾ 1.29 mm, ±Ù¿ø½É 6.80 ¡¾ 1.18 mm, Çù¼³ 7.34 ¡¾ 1.40 mm ÀÌ´Ù.

°á·Ð:Çѱ¹ÀÎÀÇ ÀüÄ¡ºÎ, ¼Ò±¸Ä¡ºÎ, ´ë±¸Ä¡ºÎ Ä¡¾ÆÀÇ »èÁ¦·®°ú Ä¡¾Æ Å©±â °ªÀÇ Æò±Õ°ªÀ» ±¸ÇÔÀ¸·Î½á ±× °ªÀ» ÀÌ¿ëÇÏ¿© ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ ºí¶ôÀ» ¸¸µé ¼ö ÀÖ´Ù.

PURPOSE. Unpredictable shrinkage of zirconia during sintering process causes discrepancy. Therefore, there have been attempts to reduce discrepancy by milling zirconia after sintering. However, due to the hardness of sintered zirconia, milling takes longer time, causes damage to the machine and causes chip formation. With customized zirconia block using the mean dimension of prepared natural dentition, it is expected to overcome these shortcomings.

MATERIALS AND METHODS. The mean dimension of prepared natural dentition was analyzed as STL file after scanning of prepared teeth treated at SNUDH. The transverse, frontal and sagittal planes were set using Mimics and Photoshop. 3D volume was projected on each plane, and the outer line was measured through external tangent line, and the inner line was measured through inflection point of tangent line.

RESULTS. The mean height of prepared incisal (N = 57) is 6.60 ¡¾ 1.05 mm, mesiodistal length is 2.98 ¡¾ 0.73 mm, buccolingual length is 2.04 ¡¾ 0.73 mm. The mean height of prepared premolar (N = 15) is 5.37 ¡¾ 1.49 mm, mesiodistal length is 4.10 ¡¾ 1.78 mm, buccolingual length is 5.86 ¡¾ 1.55 mm. And the mean height of prepared molar (N = 13) is 5.11 ¡¾ 1.29 mm, mesiodistal length is 6.80 ¡¾ 1.18 mm, buccolingual length is 7.34 ¡¾ 1.40 mm.

CONCLUSION. Using the mean dimension of prepared natural dentition, it is expected to be able to fabricate customized zirconia block.

Å°¿öµå

Áö¸£ÄڴϾÆ; ¼Ò°á; ¸ÂÃãÇü Áö¸£ÄÚ´Ï¾Æ ºí¶ô
Zirconia; Sintering; Customized zirconia block

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI
KoreaMed