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A STUDY OF THE INFLUENCES OF ACIDIC BEVERAGES ON EROSION OF ENAMEL AND DENTIN
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Àå±âÅÃ/Ki Taeg Jang
KMID : 0358919970240040719
Abstract
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ÀúÀÚ´Â °ÇÀüÇÑ ¿ìÄ¡ÀÇ ¹ý¶ûÁú°ú »ó¾ÆÁúÀ» 1±º : Äݶó(pH 2.52), 2±º : »çÀÌ´Ù(pH 2.93), 3±º
: ¿À·»Áö Á꽺(pH 3.75)¿¡ 5ºÐ°£ ´ã±Ù ÈÄ Ã³¸®Àü ÈÄÀÇ ¹Ì¼¼°æµµ(VHN)¸¦ ºñ±³ÇÏ¿© ´ÙÀ½°ú
°°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ¹ý¶ûÁú°ú »ó¾ÆÁú ¸ðµÎ ó¸® ÈÄÀÇ ¹Ì¼¼°æµµ°¡ ó¸®Àü¿¡ ºñÇØ ¸ðµç ±º¿¡¼ Åë°èÀûÀ¸·Î À¯
ÀÇÇÏ°Ô ³·¾ÆÁ³´Ù(p<0.05).
2. ¹ý¶ûÁúÀÇ ¹Ì¼¼°æµµ °¨¼ÒÀ²ÀÌ »ó¾ÆÁúº¸´Ù 2¹èÀÌ»ó ³ô¾Ò´Ù.
3. ¹ý¶ûÁúÀÇ ±ºº° ¹Ì¼¼°æµµ °¨¼ÒÀ²Àº 1±º : 42.71¡¾4.36(%), 2±º : 37.09¡¾6.25(%), 3±º :
35.46¡¾4.98(%)À¸·Î¼ 1±ºÀÌ 2, 3±º¿¡ ºñÇØ Åë°èÀûÀ¸·Î À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù(p<0.05).
4. »ó¾ÆÁúÀÇ ±ºº° ¹Ì¼¼°æµµ °¨¼ÒÀ²Àº 1±º : 17.14¡¾3.42(1%), 2±º : 13.89¡¾3.18(%), 3±º :
13.82¡¾3.50(%)À¸·Î¼ 1±ºÀÌ 2, 3±º¿¡ ºñÇØ Åë°èÀûÀ¸·Î À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù(p<0.05).
#ÃÊ·Ï#
The aim of this study was to evaluate the in vitro effects of exposure to acidic
beverages on microhardness of enamel and dentin. Thirty enamel specimens and thirty
dentin specimens were obtained from extracted bovine maxillary incisiors. Enamel and
dentin specimens were divided into three groups and treated with acidic beverages as
follows ; Group 1 : cola(pH 2.52), Group 2 : plain soda water(pH 2.93) and Group 3 :
orange juice(pH 3.75).
Erosive treatment was performed by storing each specimens for 5 min in 50ml solution
of cola, soda water and orange juice. Average microhardness values(VHN) were
determined before and after erosive treatment.
All beverages produced significant loss of microhardness of enamel and dentin.
Microhardness of enamel was reduced in the following order : Group 1 : 42.71¡¾4.36(%),
Group 2 : 37.09¡¾6.25(%), Group 3 : 35.46¡¾4.98(%). Microhardness of dentin was
reduced in the following order : Group 1 : 17.14¡¾3.42(%), Group 2 : 13.89¡¾3.18(%),
Group 3 : 13.82¡¾3.50(%). The differences between group 1 and group 2, 3 were
statistically significant(p<0.05).
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