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±è´ö·¡, ±è¸íÁÖ, ±ÇÈ£¹ü, À̼®Çü, ÀÓ¿µÁØ,
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±è´ö·¡ (  ) - ¼­¿ï´ëÇб³
±è¸íÁÖ ( Kim Myung-Joo ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±ÇÈ£¹ü ( Kwon Ho-Beom ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
À̼®Çü ( Lee Seok-Hyeong ) - ¼º±Õ°ü´ëÇб³ ÀÇ°ú´ëÇÐ »ï¼º¼­¿ïº´¿ø º¸Ã¶°ú
ÀÓ¿µÁØ ( Lim Young-Jun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

ÀÓÇöõÆ®ÀÇ ¼º°øÀº ½Ä¸³ ÈÄÀÇ Ãʱ⠾ÈÁ¤¼º (Initial stability)ÀÇ °á°ú°¡ Áß¿äÇÑ ¿µÇâÀ» ÁØ´Ù. ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº ¿¬Áú °ñ¿¡¼­ µÎ Á¾·ùÀÇ Å×ÀÌÆÛ ÇüÅ ÀÓÇöõÆ®°¡ ÀÓÇöõÆ®ÀÇ µðÀÚÀΰú self-tapping bladeÀÇ À¯¹«¿¡ µû¶ó¼­ Ãʱ⠾ÈÁ¤¼º¿¡ ÁÖ´Â ¿µÇâÀ» ¾Ë¾Æº¸´Â °ÍÀÌ´Ù. Self-tapping blade¸¦ °¡Áö°í ÀÖ´Â °Í°ú °¡Áö°í ÀÖÁö ¾ÊÀº µÎ Á¾·ùÀÇ Å×ÀÌÆÛ ÇüÅ ÀÓÇöõÆ®°¡ »ç¿ëµÇ¾ú´Ù. Solid Rigid Polyurethane FormÀ¸·Î ¿¬Áú °ñ »óÅÂÀÎ D4 °ñ ¸ðÇüÀ» ÀçÇöÇÏ¿´´Ù. ÀÓÇöõÆ® °íÁ¤Ã¼¸¦ ½Ä¸³Çϸ鼭 Ãʱ⠾ÈÁ¤¼º °ªÀ» ±â·ÏÇÏ°í, ½Ä¸³ Á÷ÈÄ implant stability quotient (ISQ)À» ÃøÁ¤ÇÏ¿© Resonance frequency Analysis (RFA)¸¦ Æò°¡ÇÏ¿´´Ù. ¸¶Áö¸·À¸·Î ÀÓÇöõÆ®°¡ ½Ä¸³µÈ ¸ðÇü°ñÀ» ¸¸´É ½ÃÇè±â¿¡ ºÎÂøÇÏ¿© ÀåÃà ¹æÇâÀ¸·ÎÀÇ pull-out force¸¦ ÃøÁ¤ÇÏ¿´´Ù. Ãʱ⠾ÈÁ¤¼º °ª°ú ÃÖ´ë pull-out torque °ªÀº non self-tapping implants°¡ self-tapping group¿¡ ºñÇÏ¿© Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÏ°Ô Å« Æò±Õ°ªÀ» ³ªÅ¸³Â´Ù (P = 0.008). °øÁø ÁÖÆļö ºÐ¼® °á°úÀÎ ISQ °ªÀº °ÅÀÇ ºñ½ÁÇÑ Æò±Õ°ªÀ» º¸¿´À¸¸é Åë°èÇÐÀûÀ¸·Î Â÷ÀÌ°¡ ¾ø¾ú´Ù. °¢ ÀÓÇöõÆ® ½Ã½ºÅÛ¿¡¼­ ½Ä¸³ ÅäÅ©¿Í pull-out ÃÖ´ë ÅäÅ© ±×¸®°í °øÁø ÁÖÆļö °£¿¡´Â »ó°ü°ü°è¸¦ ³ªÅ¸³»Áö ¾Ê¾Ò´Ù. Non self-tapping ÀÓÇöõÆ®ÀÇ ³ôÀº ½Ä¸³ ÅäÅ©´Â ÀÓ»óÀûÀ¸·Î ¿ì¼öÇÑ Ãʱ⠾ÈÁ¤¼ºÀ» ÀǹÌÇÑ´Ù. °á·ÐÀûÀ¸·Î ¿¬Áú °ñ¿¡¼­ self-tapping blade°¡ ¾ø´Â ÀÓÇöõÆ®°¡ ÀÖ´Â °Í º¸´Ù ´õ ¿ì¼öÇÑ Ãʱ⠾ÈÁ¤¼ºÀ» º¸¿´´Ù.

The successful outcome of dental implants is mainly the result of intial implant stability following placement. The aim of this study was to investigate the effect of a self-tapping blades and implant design on initial stability of two tapered implant systems in poor bone quality. The two different implant systems included one with self-tapping blades and one without self-tapping blades. D4 bone model using Solid Rigid Polyurethane Form was used to simulate poor bone densities. The insertion torque during implant placement was recorded. Resonance frequency Analysis (RFA), measured as the implant stability quotient (ISQ), was assessed immediately after insertion. Finally, the implant-bone specimen was transferred to an Universal Testing Machine to measure the axial pull-out force. Insertion torque values and maximum pull-out torque value of the non self-tapping implants were significantly higher than those in the self-tapping group (P?=?0.008). No statistically differences were noted between the two implant designs in RFA. Within the each implant system, no correlation among insertion torque, maximum pull-out torque and RFA value could be determined. Higher insertion torque of the non-self-tapping implants appeared to confirm higher clinical initial stability. In conclusion, implants without self-tapping blades have higher initial stability than implants with self-tapping blades in poor bone quality.

Å°¿öµå

Å×ÀÌÆÛÇü ÀÓÇöõÆ®;Ãʱ⠾ÈÁ¤¼º;°ñÁú;½Ä¸³ ÅäÅ©;°øÁøÁÖÆļö ºÐ¼®
Taper body implant;Initial stability;Bone quality;Insertion torque;Resonance frequency analysis

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