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J Korean Acad Pediatr Dent. 2010;37(4): 497-504.
MAXILLARY MOLAR DISTALIZATION AND PREMOLAR ALIGNMENT WITH A JONES JIG APPLIANCE: CASE REPORTS
Eun-Kyung Jeon, Hong-Keun Hyun, Young-Jae Kim, Jung-Wook Kim, Ki-Taeg Jang, Chong-Chul Kim, Se-Hyun Hahn, Sang-Hoon Lee
Department of Pediatric Dentistry, School of Dentistry, Seoul National University
Corresponding Author: Sang-Hoon Lee ,Tel: 02-2072-3819, Email: musso@snu.ac.kr
Received: July 18, 2010;  Accepted: November 11, 2010.
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ABSTRACT
The treatment of Class II non-extraction cases, especially when premolar space is lost due to premature loss of the deciduous molars, usually requires distal movement of the maxillary molars. The Jones jig appliance is a non-compliant intraoral appliance and is effective for the distalization of the maxillary molars. It has unfavorable side-effects, however, so caution is needed to adjust the appliance and select appropriate cases. We reported four cases in which maxillary molar distalizations were concomitant with the alignment of palatally erupted premolars.
Keywords: Jones jig appliance | Upper molar distalization | Ectopic eruption | Alignment of premolar
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