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Effects of Artificial Saliva Contamination on the Bond Strength of Three Dentin Adhesives to Dentin of Primary Teeth

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±è½Å ( Kim Shin ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
Á¤¼ºÈñ ( Jeong Sung-Hee ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÁö¿¬ ( Kim Ji-Yeon ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº À¯Ä¡ »ó¾ÆÁúÀÇ º¹ÇÕ·¹Áø ¼ú½Ä¿¡¼­ °¢ ´Ü°èº°·Î Ä¡¸é¿¡ ÀΰøŸ¾×ÀÌ ¿À¿°µÇ¾úÀ» ¶§¿Í ÀÌ°ÍÀ» Á¦°ÅÇÏ´Â ¹æ¹ýÀÌ ÇÑ ´Ü°è ÀÚ°¡ºÎ½Ä Á¢ÂøÁ¦¿Í µÎ ´Ü°è »ê ºÎ½Ä Á¢ÂøÁ¦ÀÇ °áÇÕ°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºñ±³ ºÐ¼®ÇÏ´Â °ÍÀÌ´Ù. ¿¬±¸ ¸ñÀûÀ» ´Þ¼ºÇϱâ À§ÇØ, °ÇÀüÇÑ À¯±¸Ä¡ 42°³¸¦ ¼±Á¤ÇÏ¿© ¼¼ Á¾·ùÀÇ »ó¾ÆÁú Á¢ÂøÁ¦ÀÎ Scotchbond Universal Adhesive(SBU), All-Bond Universal(ABU)°ú Prime & Bond NT(PNT)¿¡ µû¶ó 3°³ÀÇ ±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù. À̸¦ ´Ù½Ã °¢ Á¢ÂøÁ¦¿¡¼­ 7°³ÀÇ ÇÏÀ§ ±×·ìÀ¸·Î ³ª´©¾ú´Ù. ´ëÁ¶±ºÀÎ 1±ºÀ» Á¦¿ÜÇÑ ³ª¸ÓÁö ±ºÀº ÀΰøŸ¾×À¸·Î ¿À¿°½ÃŲ ±ºÀ¸·Î ´ÙÀ½°ú °°ÀÌ ºÐ·ùÇÏ¿´´Ù: 2, 3±º - Á¢ÂøÁ¦ µµÆ÷ Àü; 4, 5±º - Á¢ÂøÁ¦ ÁßÇÕ Àü; 6, 7±º - Á¢ÂøÁ¦ ÁßÇÕ ÈÄ. ÀΰøŸ¾×Àº ¼ö¼¼, °ÇÁ¶(2, 4, 6±º)¿Í °ÇÁ¶(3, 5, 7±º)·Î Á¦°ÅÇÏ¿´´Ù. óġµÈ Ä¡¸é¿¡ º¹ÇÕ·¹Áø(Filtek, Z-350)À¸·Î ¼öº¹ÇÏ°í ½ÃÆíÀ» Á¦ÀÛÇÑ ÈÄ ¹Ì¼¼ÀÎÀå °áÇÕ°­µµ(Microtensile bond strength, MTBS)¸¦ ÃøÁ¤ÇÏ¿´´Ù. One-way ANOVA¿Í Tukey HSD test¸¦ ÀÌ¿ëÇؼ­ Åë°èºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù(p < 0.05). ´ëÁ¶±º¿¡¼­ MTBSÀÇ Æò±Õ°ªÀº PNT°¡ ABU¿Í SBU¿¡ ºñÇØ ³ô°Ô ³ªÅ¸³µ´Ù(p < 0.001). ¼¼ °¡Áö Á¢ÂøÁ¦ÀÇ °¢ ¿À¿°´Ü°è¿¡¼­ ¼ö¼¼¿Í °ÇÁ¶¸¦ ½ÃÇàÇßÀ» ¶§(2, 4, 6±º)°¡ °ÇÁ¶¸¸ ½ÃÇàÇßÀ» ¶§(3, 5, 7±º)º¸´Ù ³ôÀº °áÇÕ°­µµ¸¦ ³ªÅ¸³»¾ú´Ù. ±×¸®°í Á¢ÂøÁ¦ ÁßÇÕ Àü ´Ü°è¿¡¼­ ÀΰøŸ¾×ÀÇ ¿À¿°ÀÌ ¹ß»ýÇßÀ» ¶§(4, 5±º)´Â ´ëÁ¶±º¿¡ ºñÇØ ³·Àº MTBS¸¦ º¸¿´´Ù(p < 0.001). Àü¹ÝÀûÀ¸·Î µÎ ´Ü°è »ê ºÎ½Ä Á¢ÂøÁ¦°¡ ÇÑ ´Ü°è ÀÚ°¡ºÎ½Ä Á¢ÂøÁ¦¿¡ ºñÇØ ³ôÀº MTBS¸¦ º¸¿´´Ù. Á¢ÂøÁ¦¸¦ ÁßÇÕÇϱâ Àü ´Ü°è¿¡¼­ ÀΰøŸ¾×¿¡ ¿À¿°µÇ¾úÀ» °æ¿ì¿¡´Â Á¢Âø °­µµ°¡ ÇöÀúÈ÷ °¨¼ÒÇÏ¿´°í, ¼ö¼¼¿Í °ÇÁ¶ °úÁ¤À¸·Î Á¢Âø°­µµ¸¦ ȸº¹ÇÒ ¼ö ¾ø¾ú´Ù.

The aim of this study was to evaluate the effectiveness of artificial saliva contamination and decontamination procedures at different stages of a bonding procedure on the microtensile bond strength (MTBS) of two one-step self-etch adhesives and a two-step total-etch adhesive to dentin of primary teeth. Forty-two extracted sound primary molars were randomly divided into three groups depending on three adhesives, Scotchbond Universal Adhesive (SBU), All-Bond Universal (ABU) and Prime & Bond NT (PNT). For each adhesive, the teeth were allocated into seven groups. Except for control group, group 1, the groups were contaminated with artificial saliva at three different stages: the groups 2 and 3 - before adhesive application; the groups 4 and 5 - before adhesive polymerization; the groups 6 and 7 - after adhesive polymerization. Decontaminating procedures were rinsing, air-drying (group 2, 4, 6) and air-drying (group 3, 5, 7). The specimens were restored with composite resin (Filtek, Z350) and microtensile bond strength was measured. The data was analyzed with one-way ANOVA and Tukey HSD test (p < 0.05). In the control group, using PNT resulted in significantly higher bond strength than when ABU and SBU were used (p < 0.001). For three adhesives, the groups 2, 4 and 6 had greater bond strength than the groups 3, 5 and 7. Also, when the artificial saliva was contaminated before adhesive polymerization (group 4, 5), it showed a significantly lower bond strength. Generally the two-step total-etch adhesive generated a higher bond strength than the one-step self-etch adhesive. Artificial saliva contamination before adhesive polymerization led to a drastic decrease in bond strength, and rinsing with water followed by air-drying could not recover the bond strength.

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Dentin adhesive ;Artificial saliva ;Contamination ;Decontamination ;Deciduous teeth ;Bond strength

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