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설측으로 수평 맹출한 하악 측절치의 교정적 견인

Other Titles
 ORTHODONTIC TRACTION OF HORIZONTALLY ERUPTED LOWER LATERAL INCISOR ON THE LINGUAL SIDE 
Authors
 마연주  ;  손흥규  ;  최병재  ;  이제호  ;  김성오 
Citation
 Journal of the Korean Academy of Pediatric Dentistry (대한소아치과학회지), Vol.37(1) : 117-123, 2010 
Journal Title
 Journal of the Korean Academy of Pediatric Dentistry  (대한소아치과학회지) 
ISSN
 1226-8496 
Issue Date
2010
Abstract
Tooth eruption is the movement of the tooth from the developing place in the alveolar bone to the functional position in the oral cavity. The permanent incisors originate from the dental lamina on the lingual side of preceding deciduous tooth and erupt to the level of the occlusion through the well developed gubernacular cord. Ectopic eruption is a developmental disturbance in the eruption pattern of the permanent dentition. Most of the ectopically erupted lower incisor has been found in lingual side. The ectopically erupted tooth could be repositioned by orthodontic force in the early mixed dentition, which could help preventing the problems of loss of space and the lingual tilting of the lower anterior teeth. An eight-year-old girl visited the department of pediatric dentistry, Yonsei Dental University Hospital, for the evaluation and the treatment of the lower right lateral incisor, which was horizontally erupted in the lingual side, parallel to the mouth floor. Her tongue was placed on the labial side of that tooth. There was no previous dental history of dental caries or trauma on the pre-occupied primary incisor. Clinical and radiographic examinations including the computed tomography(CT), showed no evidence of dilacerations on root. Therefore, we decided to start active orthodontic traction of the lower right lateral incisor. We designed the fixed type of buccal arch wire and the lip bumper with hook for the traction. Button was attached to the lingual side of the ectopically positioned tooth. Elastic was used between the appliance and the button on that tooth. After the tooth become upright over the tongue level, appliance was change to the removable type and periodic check-up with occlusal guidance was followed to monitor the position of the tooth. In this case using the fixed appliance with modified form of lip bumper and hook embedded in acrylic part instead of extraction was very efficient up-righting the ectopically erupted tooth toward the occlusal plane.
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Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Pediatric Dentistry (소아치과학교실) > 1. Journal Papers
Yonsei Authors
김성오(Kim, Seong Oh) ORCID logo https://orcid.org/0000-0002-8620-1377
손흥규(Son, Heung Kyu)
이제호(Lee, Jae Ho) ORCID logo https://orcid.org/0000-0002-1556-3485
최병재(Choi, Byung Jai)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/100683
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