Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

ź»ê°¡½º ·¹ÀÌÀú Á¶»ç°¡ ¹ý¶ûÁúÀÇ ³»»ê¼º º¯È­¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸

AN EXPERIMENTAL STUDY ON THE EFFECTS OF CO2 LASER TO TRE TOOTH ENAMEL SURFACE AGAINST THE ACID.

´ëÇѼҾÆÄ¡°úÇÐȸÁö 1985³â 12±Ç 1È£ p.9 ~ 20
ÀÌÁ¾°©, ±è¼øÁÖ,
¼Ò¼Ó »ó¼¼Á¤º¸
ÀÌÁ¾°© (  ) - ¿¬¼¼´ëÇб³ ´ëÇпø Ä¡ÀÇÇаú
±è¼øÁÖ (  ) - ¿¬¼¼´ëÇб³ ´ëÇпø Ä¡ÀÇÇаú

Abstract

°á·Ð
°Ç°­ÇÑ Ä¡¸éÀ» °¡Áø »óÇÏ¾Ç Á¦ 1¼Ò±¸Ä¡ 90°³¸¦ 2µîºÐÇÏ¿© ¸ðµÎ 180°³ÀÇ ½ÃÆíÀ» Á¦ÀÛÇÑ ÈÄ
ź»ê°¡½º ·¹ÀÌÀú¸¦ 5 joules/cm2, 10 joules/cm2, 15
joules/cm2, 20 joules/cm2, 25 joules/cm2ÀÇ ÈûÀ¸
·Î Á¶»çÇÑ ½ÃÆíÀÇ Ä¡¸éÀÇ º¯È­¿Í 37¡É¿¡¼­ 0.1 M Á¥»ê(PH4.5)¿¡ 7ÀÏ°£ Żȸ½ÃÄÑ ºÎ½ÄµÈ Ä¡
¸éÀÇ º¯È­¸¦ ÁÖ»çÀüÀÚÇö¹Ì°æÀ» ÀÌ¿ëÇÏ¿© °üÂûÇÏ¿´À¸¸ç »ê¿¡ ¿ëÇØµÈ Ä®½·°ú ÀÎÀ» Á¤·® ºÐ¼®
ÇÏ¿© ³»»ê¼ºÀÇ Á¤µµ¸¦ ÃøÁ¤ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ź»ê°¡½º ·¹ÀÌÀú Á¶»ç±ºÁß 15 J/cm2, 20 J/cm2ÀÇ Á¶»ç·®¿¡
¼­ °øÈ÷ ³»»ê¼ºÀÌ ³ô¾Ò´Ù.
2. l5 J/cm2ÀÇ Á¶»ç·®¿¡¼­ ÆòÈ°ÇÑ Ä¡¸éÀÌ ³ªÅ¸³µ´Ù.
3. 25 J/cm2ÀÇ Á¶»ç·®¿¡¼­ À°¾ÈÀûÀÎ Ä¡¸éÀÇ Æı«°¡ º¸¿´´Ù.
4. ·¹ÀÌÀúÀÇ Ä¡¸é¿¡ ´ëÇÑ ÀÛ¿ëÀº Ä¡¸éÀ» ¹°¸® È­ÇÐÀûÀ¸·Î º¯È­½ÃÄÑ ³»»ê¼ºÀ» Áõ°­½ÃŲ´Ù.
#ÃÊ·Ï#
The purpose of this study is to determine the optimum range of laser energy density
at which we may obtain maximum degree of resistantibility against the acid without
damaging the tooth enamel surfaces.
CO2 laser was irradiated at each of five different energy levels ranging
from 5 to 25 joules/cm2 with an increment of 5 joules/cm2
on the gnooth enamel surface of the extraced noncaries human first bicuspid. The
scanning electron microscope was used for examining the existence of damages on the
enamel surface of the lased tooth.
To investigate whether the tooth changes on the acid, the enamel was incubated for
seven days in the constantly shaking solution of 5ml. of a 0.1M lactic acid (pH4.5) at 37
¡É. The buffer was analyzed to determine respective amount of calcium and phophorus.
After acid demineralization of the tooth surface a scanning electron microscope was
employed to examine the changes of the tooth enamel surface.
The following results were obtained:
1. Energy density of 15jou1e/cm2 and 20joules/cm2 yieled
the high acid resistant activities.
2. Energy density of 15joules/cm2 produced the glasdike enamel surface.
3. Energy density of 25joules/cm2 produced crack and Borons enamel
surfaces.
4. Acid resistance was increased due to physicochemical changes of tooth enamel
surface after CO2 laser irradiation.

Å°¿öµå

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI