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Evaluation of Shear Bond Strength of Various Orthodontic Bracket Bonding Agents

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ÇÔ¿µÁØ, Çѹ̶õ,
¼Ò¼Ó »ó¼¼Á¤º¸
ÇÔ¿µÁØ ( Ham Young-Jun ) - Dankook University College of Dentistry Department of Pediatric Dentistry
Çѹ̶õ ( Han Mi-Ran ) - Dankook University College of Dentistry Department of Pediatric Dentistry

Abstract

Ä¡°ú¿¡¼­ »ç¿ëÇÏ´Â Àç·áµéÀÇ ¹°¼ºÀÇ ¹ß´Þ·Î ÀÎÇÏ¿© ºê¶óÄÏ°ú Ä¡¾Æ »çÀÌÀÇ °áÇÕ ´É·Âµµ Å©°Ô Çâ»óµÇ¾ú´Ù. ±×·¯³ª ¼Ò¾ÆÄ¡°ú ¿µ¿ª¿¡¼­¿Í °°ÀÌ È¯ÀÚÀÇ ÇùÁ¶¸¦ ±â´ëÇϱ⠾î·Æ°Å³ª, ¼öºÐ °Ý¸®°¡ Á¦´ë·Î ÀÌ·ç¾îÁöÁö ¾ÊÀ» °æ¿ì ±â´ëÇÏ´Â È¿°ú¿¡ ¹ÌÄ¡Áö ¸øÇÏ´Â °áÇÕ°­µµ¸¦ º¸¿©ÁÙ ¼ö ÀÖ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº ¼¼ °¡ÁöÀÇ Á¢Âø ¼ú½ÄÀ» ºñ±³ÇÏ¿© ºê¶óÄÏÀÇ Àü´Ü Á¢Âø °­µµ¸¦ Æò°¡ÇÏ°í, ÀÓ»óÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ Á¸ÀçÇÏ´ÂÁö ºñ±³ÇÏ´Â °ÍÀÌ´Ù. ¿ì½ÄÁõÀ̳ª ¼öº¹¹°ÀÌ ¾ø´Â »ó, ÇÏ¾Ç ¼Ò±¸Ä¡ 60°³ Ä¡¾Æ¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. Group IÀº ´ëÁ¶±ºÀ¸·Î¼­ ±âÁ¸ÀÇ 3 step Á¢Âø ¹æ½Ä¿¡ µû¶ó ºê¶óÄÏÀ» ºÎÂøÇÏ¿´°í, Group II´Â self-etching primer systemÀ» ÀÌ¿ëÇÏ¿© ºÎÂøÇÏ¿´´Ù. Group III´Â self-priming adhesive¸¦ ÀÌ¿ëÇÏ¿© ºê¶óÄÏÀ» ºÎÂøÇÏ¿´´Ù. °¢ groupÀÇ Àü´Ü °áÇÕ °­µµ¸¦ ÃøÁ¤ÇÏ°í Á¢ÂøÁ¦ ÀÜ·ùÁö¼ö(ARI)¸¦ ±â·ÏÇÏ¿´´Ù. °¢ group I, II, IIIÀÇ Æò±Õ Àü´Ü °áÇÕ °­µµ´Â 14.69 MPa, 11.21 MPa ±×¸®°í 12.21 MPa·Î ÃøÁ¤µÇ¾ú´Ù. Group I°ú II, group I°ú III¿¡¼­¸¸ À¯ÀÇÇÑ Â÷ÀÌ°¡ Á¸ÀçÇÏ¿´À¸¸ç(p < 0.05), ARI °ªÀº ¸ðµç group¿¡¼­ À¯ÀÇÇÑ Â÷ÀÌ°¡ Á¸ÀçÇÏÁö ¾Ê¾Ò´Ù.

Due to the development of properties of adhesive materials currently used in dentistry, the bonding ability between the brackets and the tooth enamel has been greatly improved. In general, in situations where cooperation can be obtained, adhesion of the orthodontic bracket through the conventional three-step process can show excellent bonding strength. However, if it is difficult to expect patient cooperation, as in the pediatric dentistry area, or if moisture isolation is not properly performed, the binding strength that does not reach the expected effect. As a result, various products that simplify the process for adhesion are being developed. The aim of this study was to evaluate and compare the shear bonding strength between the conventional 3-step adhesion system, self-etching primer system and one-step adhesion system that reduces the priming process. A total of 60 human maxillary, mandibular premolars were prepared. Group I (control group) were followed conventional 3-step bonding process. Group II were conditioned with self-etching primer. Group III were etched with 37% phosphoric acid and brackets were bonded with self-priming adhesive. The resultant shear bond strength of each group was measured and an adhesive remnant index (ARI) was recorded. The mean shear bond strength of group I, II, III were 14.69 MPa, 11.21 MPa and 12.21 MPa respectively. Significant differences could only be found between group I, II and group I, III (p < 0.05). The ARI indicated no significant difference among all groups.

Å°¿öµå

Shear bond strength; Orthodontic bracket; Conventional bonding system; Self-etched bonding system; Self-priming bonding system

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