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Edge chipping test (ECT)ÀÇ ½ÇÇè¹æ¹ý°ú Çؼ®¿¡ °üÇÑ ¹®Çå°íÂû

Literature review on the experimental method and interpretation of the edge chipping test (ECT)

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¼Û¹Î±Ô, °í°æÈ£, ÇãÀ±Çõ, ¹ÚÂùÁø, Á¶¸®¶ó,
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¼Û¹Î±Ô ( Song Min-Gyu ) - Gangneung-Wonju National University College of Dentistry Department of Prosthodontics
°í°æÈ£ ( Ko Kyung-Ho ) - Gangneung-Wonju National University College of Dentistry Department of Prosthodontics
ÇãÀ±Çõ ( Huh Yoon-Hyuk ) - Gangneung-Wonju National University College of Dentistry Department of Prosthodontics
¹ÚÂùÁø ( Park Chan-Jin ) - Gangneung-Wonju National University College of Dentistry Department of Prosthodontics
Á¶¸®¶ó ( Cho Lee-Ra ) - Gangneung-Wonju National University College of Dentistry Department of Prosthodontics

Abstract

ÀÓ»ó¿¡¼­ ½É¹ÌÀû ¼öº¹¿¡ »ç¿ëµÇ´Â ¼¼¶ó¹Í Àç·áµéÀº ¼º´É¿¡ ´ëÇÑ ¿¹ÃøÀ» À§ÇØ ½ÇÇè½Ç ¿¬±¸°¡ ÇʼöÀûÀÌ´Ù. Ã뼺À» °¡Áø ¼¼¶ó¹ÍÀÇ ¹°¼º Æò°¡¸¦ À§Çؼ­´Â Æı«Àμº°ú ±ÁÈû°­µµ µî ÀüÅëÀûÀÎ ½ÇÇèµéÀÌ »ç¿ëµÇ¾î ¿Ô´Ù. ÇÏÁö¸¸ ÀÌ·¯ÇÑ ½ÇÇèÀº ½ÇÇèÀÇ ÇÏÁßÁ¶°Ç, ½ÇÆÐ ¾ç»ó, ½ÇÆа¡ ÀϾ´Â ÇÏÁß °ªÀÌ »ç¶÷ÀÇ ±³ÇÕ·Â ¹üÀ§³ª ÀÓ»ó¿¡¼­ÀÇ ½ÇÆÐ¿Í À¯»çÇÏÁö ¾Ê´Ù´Â ÇÑ°èÁ¡ÀÌ ÀÖ´Ù. ¹Ý¸é ÃÖ±Ù¿¡ ¼¼¶ó¹Í ºÎºÐÆÄÀýÀ» ¿¬±¸Çϱâ À§ÇØ µµÀÔµÈ edge chipping test (ECT)´Â ÀÓ»ó°ú ½ÇÆÐ ¾ç»óÀÌ ºñ½ÁÇÏ°í, ½ÇÆÐÇÏÁß°ªµµ »ç¶÷ÀÇ ±³Çշ°ú À¯»çÇÏ¿© ¼¼¶ó¹Í ¹°¼º ¿¬±¸¿¡ À¯¿ëÇÏ°Ô »ç¿ëµÉ ¼ö ÀÖ´Ù. ÀÌ ¹®Çå°íÂû¿¡¼­´Â ÀüÅëÀûÀÎ ¼¼¶ó¹Í ÇÏÁß½ÃÇèµéÀÇ ÀÇ¹Ì¿Í ÇÑ°èÁ¡µéÀ» »ìÆ캸°í ECT¿Í ºñ±³ÇÔÀ¸·Î½á º¸´Ù ÀÓ»óÀûÀ¸·Î ÀÇ¹Ì ÀÖ´Â ¼¼¶ó¹Í Àç·áµéÀÇ ½ÇÇè½Ç ¿¬±¸¿¡ ´ëÇØ °íÂûÇÏ°íÀÚ ÇÑ´Ù.

In vitro studies are essential to predict the clinical performance of ceramic widely used as restorative materials. Traditional experiments such as fracture toughness and flexural strength have been used to evaluate the properties of brittle ceramics. However, these experiments have a limitation that the load conditions, failure patterns, and load values at which failure occurs are not similar to human occlusal force ranges or clinical failures. On the other hand, the edge chipping test (ECT), which was recently introduced to study chipping fracture of ceramics, has similar failure patterns to clinical trials. In addition, the failure loads from ECT were similar to human occlusal force. ECT can be usefully used in the study of ceramic properties. In this literature review, a more clinically meaningful experimental study of ceramics by examining the meaning and limitations of traditional ceramic failure tests and comparing them with ECT.

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¼¼¶ó¹Í; ºÎºÐÆÄÀý; ÇÏÁß½ÃÇè; ±ÁÈû°­µµ; Æı«Àμº
Ceramic; Chipping fracture; Edge chipping test; Flexural strength; Fracture toughness

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