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MICROLEAKAGE TEST ACCORDING TO ACID ETCHING TREATMENT IN CLASS V COMPOMER

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Abstract

kabstract :
Ä¡¸é »ê󸮰¡ V±Þ ¿Íµ¿ÀÇ compomer ¼öº¹¿¡¼­ ¹Ì¼¼´©Ãâ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡Çϱâ À§ÇÏ
¿© 180°³ÀÇ ¹ß°ÅµÈ °ÇÀüÇÑ Ä¡¾Æ¿¡ »ý¸®ÀûÀÎ Ä¡¼ö³»¾ÐÀ» °¡ÇÑ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´À¸¸ç, CEJ 1
§® »ó¹æ¿¡ 6¡¿3¡¿2§®ÀÇ »óÀÚÇü V±Þ ¿Íµ¿À» Çü¼ºÇÏ¿© ¼öº¹Àç·á ¹× »êó¸® ½Ã°£¿¡ µû¶ó ´ÙÀ½
°ú °°ÀÌ 30°³¾¿ 6°³ÀÇ ±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù.
A : Dyract AP + Prime&Bond 2.1
1±º : »êó¸® ¾øÀ½, 2±º : 15ÃÊ°£ »êó¸® ½ÃÇà, 3±º : 30ÃÊ°£ »êó¸® ½ÃÇà
B : F2000 + Single Bond adhesive
1±º : »êó¸® ¾øÀ½, 2±º : 15ÃÊ°£ »êó¸® ½ÃÇà, 3±º : 30ÃÊ°£ »êó¸® ½ÃÇà.
»ê󸮸¦ Á¦¿ÜÇÑ ¸ðµç ¼öº¹°úÁ¤Àº Á¦Á¶È¸»çÀÇ Áö½Ã¿¡ ´Ù¶úÀ¸¸ç, ¼öº¹ ¼ö ½ÃÆíÀº 5¡­55¡É
¿¡¼­ 500ȸÀÇ thermocyclingÀ» °ÅÃÄ 5% methylene blue ¿ë¾×¿¡ 5½Ã°£µ¿¾È ħÀû ÈÄ ±³Á¤¿ë
Åõ¸í·¹Áø¿¡ ¸Å¸ôµÇ¾ú´Ù. Àú¼Ó¿ë °æÁ¶Á÷ Àý´Ü±â·Î ½ÃÆíÀ» Àý´ÜÈÄ 20¹èÀ²ÀÇ stereoscope ÇÏ¿¡
¼­ ¹Ì¼¼´©ÃâÀ» °üÂûÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ±³ÇÕº®¿¡¼­ Dyract AP´Â »ê󸮸¦ ½ÃÇàÇÑ ±ºÀÌ »ê󸮸¦ ½ÃÇàÇÏÁö ¾ÊÀº ±º¿¡ ºñÇØ À¯
ÀÇÇÏ°Ô ³·Àº ¹Ì¼¼´©ÃâÀ» º¸¿´Áö¸¸(p<0.05), F2000¿¡¼­´Â »êó¸® ¿©ºÎ°¡ ¹Ì¼¼´©Ãâ Á¤µµ¿¡ À¯
ÀÇÂ÷¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(p<0.05)/
2. Ä¡Àºº®¿¡¼­ Dyract AP´Â »ê󸮸¦ ½ÃÇàÇÏÁö ¾ÊÀº 1±ºÀÌ 2±º¿¡ ºñÇØ À¯ÀÇÇÏ°Ô ³ôÀº ¹Ì
¼¼´©ÃâÁ¤µµ¸¦ º¸¿´Áö¸¸(p=0.003), 3±º°ú´Â À¯ÀÇÂ÷¸¦ º¸ÀÌÁö ¾Ê¾Ò°í(p=0.99), F2000¿¡¼­´Â »ê
󸮰¡ ¹Ì¼¼´©ÃâÀ» À¯ÀÇÇÏ°Ô °¨¼Ò½ÃÄ×´Ù(p<0.05)/
3. ±³ÇÕº®°ú Ä¡Àºº®ÀÇ ºñ±³¿¡¼­, µÎ Àç·á ¸ðµÎ ±³ÇÕº®¿¡¼­ ³·Àº ¹Ì¼¼´©ÃâÁ¤µµ¸¦ º¸¿´Áö¸¸,
Dyract APÀÇ 3±º¿¡¼­´Â À¯ÀǼºÀ» º¸ÀÌÁö ¾Ê¾Ò´Ù(p=0.117).
4. µÎ Àç·á ¸ðµÎ 2±º°ú 3±º »çÀÌÀÇ ¹Ì¼¼´©Ãâ Á¤µµ¿¡¼­´Â À¯ÀÇÂ÷¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(p>0.05).
À̸¦ Á¾ÇÕÇØ º¼ ¶§ compomer, ¼öº¹½Ã »ê󸮴 ¹Ì¼¼´©ÃâÀ» °¨¼Ò½ÃÅ°´Â À¯È¿ÇÑ ¹æ¹ýÀ̶ó
°í »ç·áµÈ´Ù.
#ÃÊ·Ï#
-Abstract-
The purpose of this study was to evaluate the microleakage of class V compomers
according to acid etching treatment and treatment times. Extracted 180 sound human
molar teeth were selected then prepared physiologic pulpal pressure for this experiment.
In this study, class V cavities were prepared on buccal surface with gingival margin
located in 1§® superior to CEJ under simulate physiological conditions These specimens
were randomly divided into 6 groups of 30 each and restored following methods :
A : Dyract AP + Prime&Bond 2.1
Group 1 : No acid etching, according to manufacturer's instruction. Group 2 : 15
seconds acid etching and same method with Group 1. Group 3 : 30 seconds acid ethcing
and same method with Group 1.
B : F2000 groups + Single Bond adhesive
Group 1 : No acid etching according to manufacturer's instruction. Group 2 : 15
seconds acid etching and same method with Group 1. Group 3 : 30 seconds acid etching
and same method with Group 1.
After 500 thermocycling between 5¡É and 55¡É, the specimens were sealed with glass
ionomer and nail varnish then placed in 5% methylene blue dye for 5 hours and rinsed
with tab water. The specimens were embedded in otrhodontic clear resin, then sectioned
buccolingually through the center of restoration with a low speed diamond saw. The dye
penetration on each of the specimens were then observed with a stereomicroscope at ¡¿
21 magnification. The results of this study were statistically analyzed using the
indepedent sample t-test and analysis of variance.
Results were as follow.
1. In occlusal walls, microleakage were significantly reduced in acid etched group
restored with Dyract AP, but no statistically significance in F2000 groups.
2. In gingival walls, microleakage were significantly reduced in group 2 restored with
Dyract AP, and group 2 and group 3 in F2000 groups.
3. All groups, except group 3 in Dyract AP, showed significantly less microleakage in
occlusal wall than gingival wall.
4. No statistical significance were showed between group 2 and group 3 in both
materials.

Å°¿öµå

compomer; 5±Þ¿Íµ¿; ¹Ì¼¼´©Ãâ; »êó¸®; »ý¸®ÀûÀÎ Ä¡¼ö³»¾Ð; Compomer; Microleakage; Acid etching; Physiologic pulpal pressure; Class V cavity;

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