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Esthetic Retratment of Old Restorations with Cervical Discolorations

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Abstract

Metal ceramic restoration Àº cast metalÀÇ marginÀÇ Á¤È®¼º°ú °­µµ¸¦ ceramicÀÇ ½É¹Ì¼º°ú ÇÕÄ£ ÀåÁ¡À» °¡Áø ÇüÅÂÀÇ ¼öº¹¹°·Î °ú°Å 30³â°£ ÀüÄ¡ºÎÀÇ ½É¹ÌÀûÀÎ º¸Ã¶À» À§ÇÑ ¼ÒÀç·Î °¢±¤ ¹Þ°í ¸¹ÀÌ »ç¿ëµÇ¾î ¿Ô´Ù. ÇÏÁö¸¸ metal collar¿¡ ÀÇÇÑ ºñ½É¹ÌÀûÀÎ ºÎºÐÀ» Á¦°ÅÇϱâ À§ÇÏ¿© ¸¹Àº ¼úÀÚµéÀº Ä¡¾Æ»èÁ¦ ½Ãfinishing lineÀ» subgingival level¿¡ Çü¼ºÇÏ°Ô µÇ¾ú°í, ÀÌ°Í¿¡ ÀÇÇÑ ¸¹Àº ¹®Á¦µéÀÌ º¸Ã¶ Ä¡·á ÈÄ¿¡ ³ªÅ¸³ª°Ô µÇ¾ú´Ù. Fluid controlÀÇ ½ÇÆÐ¿Í ¿¬Á¶Á÷ ¼Õ»ó¿¡ ÀÇÇØ Á¤È®ÇÑ ÀλóäµæÀÌ ¾î·Æ°Ô µÇ¾ú°í ÀÌ·Î ÀÎÇÏ¿©, Ä¡°æºÎÀÇ black shadow »Ó¸¸ ¾Æ´Ï¶ó gingival inflammationÀÌ ÀϾ°Ô µÇ¾ú´Ù. ÀÌ·¯ÇÑ ¹®Á¦µéÀ» ÇØ°áÇϱâ À§Çؼ­´Â Á¤È®ÇÑ finishing lineÀÇ Çü¼º°ú Àӽà º¸Ã¶¹°¿¡ ÀÇÇÑ ½É¹Ì¼öº¹ÀÌ ÇÊ¿äÇÏ´Ù.

As patients have concerned the esthetics of dental restorations, the porcelain fused to metal restorations have gain their popularity due to their strength and esthetic appearance for many years. However, metal collar in subgingival level of porcelain fused to metal restoration often causes black shadows. Inadequately positioned metal collar causes plaque depositions, gingival inflammations, black shadows, and discolorations of margin area. Those problems can be avoided by a clear finishing line, well-fabricated provisional restorations with precise margin and fine polishing, collarless porcelain fused to metal restoration, and all ceramic restoration.
In this case report, collarless porcelain fused to metal restoration was used to treat cervical discoloration from old restorations

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