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Study on the Elution of Residual Monomers from Polymerized and Unpolymerized Pit & Fissure Sealants

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Abstract

°á·Ð
º» ¿¬±¸´Â »çÀü¿¬±¸¸¦ ±âÃÊ·Î ÇÏ¿© ÇöÀç ±¹³»¿¡¼­ »ç¿ëÇÏ´Â °æÈ­ ¹× ¹Ì°æÈ­ Ä¡°ú¿ë ¼Ò¿Í
¿­±¸ Àü»öÁ¦ ¹× ´ëÁ¶±º ÄÞÆ÷ÁþÆ®¸¦ ¿¡Åº¿Ã¿¡ 4 ºÐ, 2, 12 ½Ã°£, 3, 7 ÀÏ°£ ½ÃÈ¿ÇÏ¿© À¯ÃâÇÒ
¼ö ÀÖ´Â Bisphenol-A °°Àº ¿¡½ºÆ®·ÎÁ¨¼º ¼ººÐ ¹× ¹Ì¹ÝÀÀ ´Ü·®Ã¼¿Í ºÐÇػ깰À» È®ÀÎÇÏ°í À¯
Ã⼺ºÐÀÌ ¿¡½ºÆ®·ÎÁ¨¼ºÀ» ³ªÅ¸³¾ ¼ö ÀÖ´Â ¹üÀ§¸¦ º¸±â À§ÇÏ¿© Á¤·®È­ ÇÏ¿´´Ù.
½ÇÇ豺À¸·Î ·¹Áø°è ±¤ÁßÇÕ ÄÞÆ÷ÁþÆ® 1 Á¾À» ´ëÁ¶±º (Z100)À¸·Î, ¼Ò¿Í¿­±¸ Àü»öÁ¦ 7 Á¾
(CON, PFS, ELI, FSF, TF1, UXP, ¹× HEL) À» 99.99% ¿¡Åº¿Ã¿¡ ħÁöÇÑ ÈÄ À¯ÃâÇÑ °¢ ¼º
ºÐÀ» °í¼º´É ¾×ü Å©·Î¸¶Åä±×·¡ÇÇ (High-Performance Liquid Chromatography, Waters,
U.S.A.) ·Î ºÐ¼®ÇÏ¿´´Ù.
À¯ÃâµÈ ¼ººÐÀÇ ºñ±³´Â °¢ Àü»öÁ¦ÀÇ ÁÖ¿ä ±¸¼º ¼ººÐÀÎ Bisphenol-A, Triethyleneglycol
dimethacrylate ¹× Bis-glycidyl dimethacrylate, Urethane dimethacrylate À» Ç¥ÁØ ¹°Áú·Î »ç
¿ëÇÏ¿© ºÐ¼®ÇÑ ¹Ù ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ½ÃÆíÀÇ BPA, TEGDMA, Bis-GMA (UDMA) ´Ü·®Ã¼¸¦ À¯Ãâ½Ã°£ 2.28, 3.37, 7.39 (6.18)
¿¡¼­ °ËÃâÇÏ¿´´Ù.
2. ¹ÌÁßÇÕ ½ÃÆí 4 ºÐ ħÀû±ºÀÇ CON, ELI, HEL, Z100 (´ëÁ¶±º) ±º¿¡¼­´Â BPA À¯ÃâÀ» º¼
¼ö ¾ø¾ú°í, ÁßÇÕ PFS ¿Í ELI ±ºÀÇ BPA À¯Ãâ·®Àº ´Ù¸¥ ±ºº¸´Ù À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù
(p<0.05).
3. ÁßÇÕ ½ÃÆíÀÇ ´ëºÎºÐ ½Ãȿ󸮱º »çÀÌÀÇ TEGDMAÀÇ À¯Ãâ·®Àº À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸³ª
(p>0.05), TF1, UXP ±º¿¡¼­´Â 7 ÀÏ Ä§Àû±º¿¡¼­ À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´´Ù (p<0.05).
4. Bis-GMA ¿Í UDMA À¯Ãâ·®Àº 3 ÀÏ Ä§Àû±ººÎÅÍ À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´´Ù (P<0.05).
5. Ä¡°ú¿ë ¼Ò¿Í¿­±¸ Àü»öÁ¦ Á¶¼ºÀÇ BPA, TEGDMA, Bis-GMA ¹× UDMA À¯Ãâ·®ÀÇ ¹üÀ§
´Â ÁßÇÕÇÑ Àü»öÁ¦ ¹«°ÔÀÇ 0.0023¡­2.94% À̾ú´Ù.
#ÃÊ·Ï#
Triethyleneglycol dimethacrylate (TEGDMA), Bis-glycidyl dimethacrylate (Bis-GMA),
and Urethane dimethacrylate (UDMA) are components of dental resin-based pit &
fissure sealants which may be released and enter the body via skin, dentin and pulp. A
recent study reported that hormone-mimicking compound, Bisphenol-A leached into
saliva from dental pit & fissure sealants. The purpose of this study was to identify and
quantify Bisphenol-A and other teachable components that might be released from
polymerized and unpolymerized dental pit & fissure sealants. Seven commercially
available light-cured resin-based pit and fissure sealants as the experimental group
(Concise, Pit & Fissure Sealant, Elite, Fissurit F, Teethmate F-1, Ultraseal XT Plus and
Helioseal) and one composite resin (Z100) as the control group were studied. Specimens
were polymerized by using a 1 §® (thickness) ¡¿ 0.5 §® (diameter) acrylic mold which
were weighed and immersed in 99.99 % ethyl alcohol for 4 min, 2 and 12 hrs., 3 and 7
days. Solutions were analyzed by using High-Performance Liquid Chromatography
(HPLC) to detect various teachable components. Three specimens of each sealants were
tested.
From the experiment, the following results were obtained : Specimen peaks with
retention times of 2.28, 3.37, 6.18 and 7.39 min were identified as BPA, TEGDMA,
UDMA, and Bis-GMA respectively. BPA was not detected in eluates from
unpolymerized specimens (CON, ELI, HEL, Z100). PFS and ELI leached significantly
more BPA than other specimens did (p<0.05). Generally, the quantity of TEGDMA
leached as a function or aging periods showed no statistically significant difference
(p>0.05), but in TF1 and UXP group, they showed statistically significant difference
after 7 days (p<0.05). The amount of Bis-GMA and UDMA elution after 3 days showed
statistically significant difference (p<0.05). The monomers (BPA, TEGDMA, Bis-GMA,
and UDMA) of pit and fissure sealants were leached within a range of 0.0023¡­2.94£¥ of
the original weight of the sealants cured for 4 min, 2 and 12 hours, 3 and 7 days.

Å°¿öµå

Bis-GMA; BPA; HPLC; pit and fissure sealants; TEGDMA; UDMA;

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