Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

Áö´ëÁÖ °¢µµ¿Í ¿¬°á¹æ½ÄÀÌ Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖÀÇ ÆÄÀý°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâ

Effects of abutment angulation and type of connection on the fracture strength of zirconia abutments

´ëÇÑÄ¡°úº¸Ã¶ÇÐȸÁö 2017³â 55±Ç 1È£ p.9 ~ 17
±èÈ£¼º, Á¶Çý¿ø,
¼Ò¼Ó »ó¼¼Á¤º¸
±èÈ£¼º ( Kim Ho-Seong ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
Á¶Çý¿ø ( Cho Hye-Won ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¸ñÀû: ³»ºÎ ¿¬°áÇü°ú ¿ÜºÎ ¿¬°áÇüÀÇ ÀÓÇöõÆ®¿¡¼­ Á÷¼±Çü°ú °æ»çÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖÀÇ ÆÄÀý°­µµ¸¦ ºñ±³ÇÏ¿´´Ù.

Àç·á ¹× ¹æ¹ý: ³»ºÎÀ°°¢ ¿¬°áÇü ÀÓÇöõÆ® 20°³¿Í ¿ÜºÎÀ°°¢ ¿¬°áÇü ÀÓÇöõÆ® 20°³¿¡, ±â¼º Á÷¼±Çü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ¿Í, 17?°æ»çÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ¸¦ 10°³¾¿ ü°áÇÏ¿´´Ù. ½ÃÆíÀº ¿¬°á ¹æ½Ä°ú Áö´ëÁÖ °¢µµ¿¡ µû¶ó 4°³ÀÇ ±ºÀ¸·Î ³ª´©¾ú´Ù: ³»ºÎ ¿¬°áÇü/ Á÷¼±Çü Áö´ëÁÖ, INS±º; ³»ºÎ ¿¬°áÇü/ °æ»çÇü Áö´ëÁÖ, INA ±º; ¿ÜºÎ ¿¬°áÇü/ Á÷¼±Çü Áö´ëÁÖ, EXS ±º; ¿ÜºÎ ¿¬°áÇü/ °æ»çÇü Áö´ëÁÖ, EXA ±º. ¸ðµç ½ÃÆíÀº ¸¸´É½ÃÇè±â¿¡¼­ 1 mm/minÀÇ crosshead speed·Î 30?ÇÏÁßÀ» °¡Çß´Ù. Áö´ëÁÖÀÇ ÆÄÀý°­µµ¸¦ ÃøÁ¤ÇÏ°í, 2-way ANOVA¿Í independent t-test·Î Åë°èó¸® ÇÏ¿´´Ù(¥á= .05).

°á°ú: °¢ ±ºÀÇ Æò±ÕÆÄÀý°­µµ´Â ´ÙÀ½°ú °°´Ù: INS±º, 955.91 N; INA±º, 933.65 N; EXS±º, 1267.20 N; EXA±º, 1405.93 N. ¿ÜºÎ ¿¬°áÇüÀÌ ³»ºÎ ¿¬°áÇü¿¡ ºñÇØ ÆÄÀý°­µµ°¡ ³ô¾Ò´Ù(P < .001). ³»ºÎ¿¬°áÇü(P = .747)°ú ¿ÜºÎ ¿¬°áÇü(P = .222)¿¡¼­ Áö´ëÁÖ °¢µµ¿¡ µû¸¥ ÆÄÀý°­µµ´Â Â÷ÀÌ°¡ ¾ø¾ú´Ù. ¶ÇÇÑ ³»ºÎ ¿¬°áÇü Áö´ëÁÖ´Â À°°¢ ºÎÀ§¿¡¼­ ¼öÆò ÆÄÀýÀÌ ÀϾ ¹Ý¸é, ¿ÜºÎ ¿¬°áÇü Áö´ëÁÖ´Â ¼³Ãø Ä¡°æºÎ¿¡¼­ ÆÄÀýµÇ¾ú´Ù.

°á·Ð: ¿ÜºÎ ¿¬°áÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖ°¡ ³»ºÎ ¿¬°áÇü Áö´ëÁÖ¿¡ ºñÇØ ÆÄÀý °­µµ°¡ ³ô¾Ò°í, Á÷¼±Çü°ú °æ»çÇü Áö¸£ÄÚ´Ï¾Æ Áö´ëÁÖÀÇ ÆÄÀý°­µµ´ÂÂ÷ÀÌ°¡¾ø¾ú´Ù.

Purpose: The purpose of this study was to evaluate the fracture strength of straight and angled zirconia abutments for internal hex and external hex implants.

Materials and methods: Twenty internal hex implants and 20 external hex implants were prepared. The prefabricated straight zirconia abutments and 17-degree-angled zirconia abutments were connected to those 40 implants. The specimens were classified into 4 groups depending on the connection type and abutment angulation; internal hex implant/straight abutment, group INS; internal hex implant/angled abutment, group INA; external hex implant/straight abutment, group EXS; external hex implant/angled abutment, group EXA. All specimens were loaded at a 30-degree angle with a crosshead speed of 1 mm/min using universal testing machine. The fracture loads were analyzed using 2-way ANOVA and independent t-test (¥á= .05).

Results: The mean fracture load for INS was 955.91 N, 933.65 N for INA, 1267.20 N for EXS, and 1405.93 N for EXA. External hex implant showed a significantly higher fracture load, as compared to internal hex implant (P < .001). No significant differences in fracture loads were observed between the straight and angled abutment in internal hex implants (P = .747) and external hex implants (P = .222). Internal hexes of abutments were fractured horizontally in internal connection
implants, while lingual cervical neck portions were fractured in external connection implants.

Conclusion: The zirconia abutments with external hex implants showed significantly higher fracture strength than those with internal hex implants. However there was no difference in fracture strength between the straight and 17-degree-angled zirconia abutment connected to both implant systems.

Å°¿öµå

Áö¸£ÄÚ´Ï¾Æ ; ÀÓÇöõÆ® Áö´ëÁÖ ; °æ»çÇü Áö´ëÁÖ ; ÀÓÇöõÆ® Áö´ëÁÖ ¿¬°á±¸Á¶
Zirconia ; Implant abutment ; Angled abutment ; Implant abutment connection

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI
KoreaMed