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A NUMERICAL STUDY FOR THE VARIATION OF CORTICAL BONE THICKNESS WITH 6 ENDOSSEOUS IMPLANT SHAPES

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ÀÌ¿ëÂù/Yong Chan Lee Á¶º´¿í/¹Ú¿µÁÖ/ÀÌ¿µ±Ô/ÃÖÀçºÀ/ÁÖ¿ø/ÃֱͿø/Byoung Ouck Cho/Young Ju Park/Young Kyoo Lee/Jae Bong Choi/Won Joo/Kui Won Choi

Abstract

°á·Ð
lateral load¿¡¼­ÀÇ ÀÓÇöõÆ® ¾ÈÁ¤¼ºÀº press-fitÇüÅ°¡ ³ª»çÇüº¸´Ù ´õ ¾ÈÁ¤ÇÏ´Ù. ±×·¯³ª
compressive¿Í oblique loathing »óȲ¿¡¼­´Â ³ª»çÇüÀÌ press-fitÇüº¸´Ù ÁÁ´Ù. ÇÇÁú°ñ µÎ²²¸¦
´Ù¾çÇÏ°Ô ÇÏ¿´À» ¶§ ÀÌ µÎ²²ÀÇ º¯È­°¡ ´ëĪÀûÀÌµç ºñ´ëĪÀûÀ̵çÁö °£¿¡ ÀÌ »óȲ¿¡¼­´Â
press-fitÀÇ ÀÓÇöõÆ®°¡ ¼±È£µÈ´Ù. ÀÌ·± »óȲ µîÀ» Á¾ÇÕÇÏ¿© º¼ ¶§ ¥µÇüÀÇ tapered¿Í screw
ÀÇ hybrid ÀÓÇöõÆ®°¡ ¸ðµç »óȲ¿¡¼­ °¡Àå ÀûÀýÇÑ Æ¯¼ºÀ» °®´Â °ÍÀ¸·Î ¿¹»óµÈ´Ù.

Dental implant is increasingly used to rehabilitate the masticatory function of missing
teeth. Several types of dental implant have been designed to give an optimal stress
distribution to the surrounding bone, In this study, six typer of implant were
investigated using finite element methods 1)how the variation of cortical bone thickness
affects the stress distribution in bony regions depending upon implant types, and 2)
which type gives the best characteristics in the sense of stress distribution and stability.
The hybrid-type implant with tapered cylinder and screw gave the optimum properties
in view of stability and response due to variation of cortical bone thickness.

dental implant; FEM; stress analysis; variation of cortical bone thickness; stress distribution; geometry;

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