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Precision-TPA¸¦ ÀÌ¿ëÇÑ ±¸Ä¡ºÎ ȸÀü½Ã ±Ù½É ¹× ¿ø½É»ðÀÔ¹ý¿¡ µû¸¥ µ¿ÀûÀÎ Ä¡¾ÆÀ̵¿ ¾ç»ó¿¡ °üÇÑ ½ÇÇ迬±¸

An experimental study on the dynamic teeth movement of 3 types of the insertion method of Precision-TPA for derotating the posterior teeth

Korean Journal of Orthodontics 1999³â 29±Ç 4È£ p.425 ~ 434
¾ç¼ºÀç, Á¤¼º±Ç, ³ëÁØ, ÀüÀ±½Ä,
¼Ò¼Ó »ó¼¼Á¤º¸
¾ç¼ºÀç (  ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
Á¤¼º±Ç (  ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
³ëÁØ (  ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
ÀüÀ±½Ä (  ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç

Abstract

ȸÀüµÈ ±¸Ä¡¸¦ °³¼±½ÃÅ°±â À§ÇØ »ç¿ëÇÏ´Â precision-TPA(transpalatal arch)¸¦ »ðÀÔ¹æ¹ýµé
-±Ù½É»ðÀÔ¹ý, ¿ø½É»ðÀÔ¹ý, È®Àå·ÂÀ» ºÎ¿©ÇÑ ±Ù½É»ðÀÔ¹ý(ÀÌÇÏ ±Ù½ÉÈ®Àå¹ý)-¿¡ µû¶ó µ¿ÀûÀÎ Ä¡
¾ÆÀ̵¿ÀÇ ¾ç»ó°ú Ä¡¿­±ÃÀÇ º¯È­¸¦ ºñ±³Çϱâ À§ÇØ º» ±³½Ç¿¡¼­ °³¹ß, Á¦ÀÛÇÑ Calorific
machineÀ» ÀÌ¿ëÇÏ¿© ½ÇÇèÇÑ ÈÄ È¸ÀüµÈ Ä¡¾Æ¿Í °íÁ¤Ä¡°£ÀÇ À̵¿¾ç»óÀ» °èÃøÇÏ¿© Åë°èó¸®ÇÑ
°á°ú ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ±¸Ä¡°£ Æø°æÀº ±Ù½É»ðÀÔ¹ý¿¡ ÀÇÇØ °¨¼ÒÇÏ¿´°í, ¿ø½É»ðÀÔ¹ý°ú ±Ù½ÉÈ®Àå¹ý¿¡ ÀÇÇؼ­ Áõ°¡ÇÏ
¿´´Ù.
2. ¿ø½É»ðÀÔ¹ý¿¡ ÀÇÇؼ­ Ä¡¿­±Ã Àå°æÀÌ °¡Àå Áõ°¡ÇÏ¿´°í, ±Ù½ÉÈ®Àå¹ý, ±Ù½É»ðÀÔ¹ý ¼øÀ¸·Î Áõ
°¡ÇÏ¿´´Ù.
3. ±Ù½É»ðÀÔ¹ýÀÇ È¸ÀüÁß½ÉÀº ±Ù½É¼Ò¿Í(mesial pit)¿Í Á߽ɼҿÍ(central pit)»çÀÌ¿¡ À§Ä¡ÇÏ¿´°í,
¿ø½É»ðÀÔ¹ý¿¡¼­´Â ¿ø½É¼Ò¿Í(distal pit)¿Í ¿ø½É¼³Ãø±³µÎ(distolingual cusp)»çÀÌ¿¡, ±Ù½ÉÈ®Àå¹ý
Àº ¿ø½É¼Ò¿Í(distal pit)¿¡ À§Ä¡ÇÏ¿´´Ù.
#ÃÊ·Ï#
Dr. Youn-Sic Chun and coworkers invented the new machine for getting information
about the relative effectiveness of the orthodontic appliances and we named it Calorific
machine.
The author and colleagues used this machine to compare with tooth moving
mechanism by 3 types of the insertion method of precision-TPA for derotating the
posterior teeth. We measured the distance of tooth movement and found out the
rotational center on the occlusal X-ray film and the tooth movement on the occlusogram
and then processed paired t-test by SAS program.
The results were as follow : 1. In the intermolar width, the mesial insertion method
showed the loss of distance, and the other methods(-distal insertion method, mesial
expansion method-) showed the increase of distance.
2. In the arch length, the distal insertion method was exhibited as most recommandable
way for increasing the arch length.
3. The rotation center of the mesial insertion method for derotating the molar, was
located between mesial pit and central pit of the lower 2nd molar. and, in the distal
insertion method, it was located between distal pit and distolingual cusp, and in the
mesial expansion method was located at distal pit.

Å°¿öµå

±¸Ä¡È¸Àü; ±Ù½É»ðÀÔ¹ý; ¿ø½É»ðÀÔ¹ý; ±Ù½ÉÈ®Àå¹ý; Molar rotation; Mesial insertion method; Distal insertion method; Mesial expansion method;

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