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A HISTOLOGIC STUDY ON THE RESPONSES OF PULP IN EXPERIMENTAL TOOTH MOVEMENT OF WHITE RATS

Korean Journal of Orthodontics 1970³â 1±Ç 1È£ p.15 ~ 20
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³²µ¿¼® ( Nam Dong-Seok ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

ÀúÀÚ´Â ÈòÁã 27¼öÀÇ ÇϾÇÁ¦Àϴ뱸ġ¸¦ ±³Á¤¿ë °í¹«¼±À¸·Î À̵¿½ÃŲÈÄ, À̵¿ÀÇ Ãʱ⿡ ³ªÅ¸³ª´Â Ä¡¼öÀÇ ¹ÝÀÀÀ» Á¶Á÷ÇÐÀû ¹æ¹ýÀ¸·Î °üÂûÇÏ´Â °ÍÀ» ¿¬±¸¸ñÀûÀ¸·Î ÇÏ¿´´Ù. 30 GmºÎÅÍ 120 Gm±îÁöÀÇ ÈûÀ», 12¼ö´Â 3ÀÏ°£, 15¼ö´Â 7ÀÏ°£, °¢ ½ÇÇèÄ¡¾Æ¿¡ ºÎ¿©ÇÏ¿´´Ù. °üÂû°á°ú´Â ´ÙÀ½°ú °°¾Ò´Ù. 1. Ä¡¼öÁ¶Á÷ÀÇ ÁÖº¯È­´Â Ä¡¼öÇ÷°üÀÇ ¼øȯÀå¾Ö¿Í Á¶»ó¾Æ¼¼Æ÷ÀÇ °øÆ÷Çü»óÀ¸·Î ³ªÅ¸³µ´Ù. 2. Àû¿ë½ÃŲ ÈûÀÇ Áõ°¡¿¡ µû¶ó¼­ »ó±â Á¶Á÷º¯È­ÀÇ ¹üÀ§°¡ È®´ëµÇ¾ú´Ù. 3. ±â¿Ü¿¡ Ä¡±ÙÀÇ »ó¾ÆÁú°ú ¹é¾ÇÁúÀÇ ºÎºÐÀû Èí¼öµµ º¼ ¼ö ÀÖ¾ú´Ù.

The author investigated on the responses of pulp and dentine following tooth movements. The material consisted of fifty-four intact teeth from twenty-seven adult white rats. The half of the teeth were employed as controls and the other half served as experimental group. These teeth were moved with forces ranging from 30 grams to 120 grams for from 3 to 7 days. All these were extracted immediately after the force was relieved. The main pulp changes in the experiment were vacuolization of the pulp tissue and circulatory disturbances. The magnitude of the force had an important role. In addition to these changes, the resorption in dentine and cementum was observed, which was related to the magnitude of the force and the duration of experiment.

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SCI(E)
KCI
KoreaMed