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Retrospective study on survival and complication rates of posterior single implant according to the implant diameters, lengths and position

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È«¼ö¿µ, À̼±±â, ÀÌÁøÇÑ, ÀÌÀçÀÎ,
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È«¼ö¿µ ( Hong Soo-Young ) - 
À̼±±â ( Lee Seon-Ki ) - 
ÀÌÁøÇÑ ( Lee Jin-Han ) - 
ÀÌÀçÀΠ( Lee Jae-In ) - 

Abstract

¸ñÀû: ±¸Ä¡ºÎ ´ÜÀÏ ÀÓÇöõÆ®¿¡¼­ ÀÓÇöõÆ®ÀÇ Á÷°æ°ú ±æÀÌ, ½Ä¸³ À§Ä¡¿¡ µû¸¥ »ýÁ¸À² ¹× °¢°¢ÀÇ ÇÕº´ÁõÀÇ ¹ß»ý·üÀ» ÈÄÇâÀûÀ¸·Î Á¶»çÇÏ´Â °ÍÀÌ´Ù.

´ë»ó ¹× ¹æ¹ý: º» ¿¬±¸´Â 2014³â 2¿ùºÎÅÍ 2018³â 5¿ù±îÁö ¿ø±¤´ëÇб³ ´ëÀüÄ¡°úº´¿ø º¸Ã¶°ú¿¡¼­ 3¸íÀÇ º¸Ã¶Àü¹®ÀÇ¿¡°Ô ±¸Ä¡ºÎ ´ÜÀÏ Ä¡°üÀ¸·Î ÀÓÇöõÆ® º¸Ã¶ ¼öº¹À» ¿Ï·áÇÑ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. ÃÑ 505¸íÀÇ È¯ÀÚ¿¡¼­ 697°³ÀÇ ÀÓÇöõÆ®¸¦ ÃßÀû °üÂûÇÏ¿´´Ù. ´ë»ó ȯÀÚÀÇ ÀüÀÚ Áø·á±â·ÏºÎ¿Í ¹æ»ç¼± »çÁøÀ» ÅëÇØ ÀÓÇöõÆ®ÀÇ »ýÁ¸ ¿©ºÎ ¹× ÇÕº´ÁõÀ» ±â·ÏÇÏ¿´À¸¸ç ÀÌ¿¡ ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Â ¿äÀÎÀ¸·Î °íÁ¤Ã¼ÀÇ Á÷°æ°ú ±æÀÌ, ½Ä¸³ À§Ä¡ ±×¸®°í ȯÀÚÀÇ ¼ºº°, ¿¬·ÉÀÌ Æò°¡µÇ¾ú´Ù.

°á°ú: »ýÁ¸À²Àº ±¸Ä¡ºÎ ´ÜÀÏ ÀÓÇöõÆ®ÀÇ 3³â ´©Àû »ýÁ¸À²Àº 98.5%, 5³â ´©Àû »ýÁ¸À²Àº 94.4% À̾ú´Ù. 5³â ´©Àû »ýÁ¸À²Àº Á÷°æ 4.0 mm ÀÌÇÏ(89.5%)ÀÏ ¶§º¸´Ù 4.0 mm ÃÊ°ú(97.0%)ÀÏ ¶§ ´õ ³ô¾Ò°í, ³²¼º(92.4%)º¸´Ù ¿©¼º(98.8%)¿¡¼­ ´õ ³ô¾Ò´Ù. ÀÌ´Â Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù (P < .05). ±¸Ä¡ºÎ ´ÜÀÏ ÀÓÇöõÆ®ÀÇ ±â°èÀû ÇÕº´ÁõÀº 20.1%, »ý¹°ÇÐÀû ÇÕº´ÁõÀº 4.7% ¹ß»ýÇÏ¿´´Ù. ÇÕº´ÁõÀº Áö´ëÁÖ ³ª»ç Ç®¸²(7.5%), º¸Ã¶¹° Å»¶ô(6.3%), ÀÎÁ¢¸é Á¢ÃË »ó½Ç(3.7%) ¼øÀ¸·Î ¸¹ÀÌ ¹ß»ýÇÏ¿´´Ù. Áö´ëÁÖ ³ª»ç Ç®¸²Àº ÇÏ¾Ç ´ë±¸Ä¡ ºÎÀ§(10.5%)¿¡¼­ °¡Àå ¸¹ÀÌ ¹ß»ýÇÏ¿´°í ¿©¼º(5.1%)º¸´Ù ³²¼º(9.5%)¿¡¼­, 65¼¼ ÀÌ»ó(5.1%)º¸´Ù 65¼¼ ¹Ì¸¸ÀÇ È¯ÀÚ(9.4%)¿¡¼­ ´õ ¸¹ÀÌ ¹ß»ýÇÏ¿´´Ù. ÀÌ´Â Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù (P < .05).

°á·Ð: ±¸Ä¡ºÎ ´ÜÀÏ ÀÓÇöõÆ®ÀÇ 5³â ´©Àû »ýÁ¸À²Àº °íÁ¤Ã¼ÀÇ Á÷°æÀÌ 4.0 mm ÀÌÇÏÀÏ ¶§º¸´Ù 4.0 mm ÃÊ°úÀÏ ¶§, ³²¼ºº¸´Ù ¿©¼º¿¡¼­ ´õ ³ô¾Ò´Ù. °¡Àå ¸¹ÀÌ ¹ß»ýÇÑ ÇÕº´ÁõÀÎ Áö´ëÁÖ ³ª»ç Ç®¸²Àº ÇÏ¾Ç ´ë±¸Ä¡ ºÎÀ§¿¡¼­ °¡Àå ¸¹ÀÌ ¹ß»ýÇÏ¿´°í, ¿©¼ºº¸´Ù ³²¼º¿¡¼­, 65¼¼ À̻󺸴٠65¼¼ ¹Ì¸¸ÀÇ È¯ÀÚ¿¡¼­ ´õ ¸¹ÀÌ ¹ß»ýÇÏ¿´´Ù. ÀÌ´Â Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù.

Purpose. This retrospective study was to investigate the survival and complication rates of posterior single implant according to the implant diameters, lengths and position.

Materials and methods. Patients who had been restored single implant prosthesis in the posterior area by the three prosthodontists in the department of prosthodontics, Daejeon dental hospital of Wonkwang university, in the period from February 2014 to May 2018 were selected for the study. A total of 505 patients with 697 implants were observed. The survival and complications of implants were investigated using electronic medical records and radiographs. Fixture diameters, lengths, position, patient¡¯s sex and age were assessed as possible factor affecting the survival and complications of implants.

Results. 3-year cumulative survival rates of posterior single implants were 98.5% and 5-year cumulative survival rates were 94.4%. 5-year cumulative survival rates were higher in implants with diameter > 4.0 mm (97.0%) than implants with diameter ¡Â 4.0 mm (89.5%), and in females (98.8%) than males (92.4%). There were statistically significant differences (P < .05). The mechanical complication rate was 20.1% and the biological complication rate was 4.7%. Complications occured in order of abutment screw loosening (7.5%), decementation (6.3%), proximal contact loss (3.7%) and so on. Abutment screw loosening occurred more frequently in the lower molar region (10.5%), in males (9.5%) than females (5.1%), and in patients aged < 65 years (9.4%) than patients aged ¡Ã 65 years (5.1%). There were statistically significant differences (P < .05).

Conclusion. The 5-year cumulative survival rates were higher in implants with diameter > 4.0 mm than implants with diameter ¡Â 4.0 mm and in females than males. Abutment screw loosening which was the most commonly occurring complication occurred more frequently in the lower molar region, in males than females, and in patients aged < 65 years than patients aged ¡Ã 65 years. There were statistically significant differences.

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ÇÕº´Áõ; Ä¡°ú¿ë ÀÓÇöõÆ®; ÈÄÇâÀû ¿¬±¸; »ýÁ¸À²
Dental implant; Survival rate; Complications; Retrospective study

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