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The Piston Elastic: A Novel Device for Treating Entrapped Ectopic Permanent Molars

 Ik-Hwan Kim  ;  Chung-Min Kang  ;  Je Seon Song  ;  Jaeho Lee  ;  Hyung-Jun Choi  ;  Seong-Oh Kim 
 CHILDREN-BASEL, Vol.8(8) : 652, 2021-08 
Journal Title
Issue Date
Ectopic eruption of the permanent molar may absorb the distal root of the primary second molar and may result in a decreased arch length or delayed eruption of the permanent tooth, requiring timely treatment. Therefore, we devised an effective and convenient method to unlock the entrapped tooth using a novel device called a “piston-elastic”. This case report aims to explain the design and clinical application of this piston-elastic and to describe successful cases. Three patients (aged 6, 13, and 16 years) with ectopically erupted maxillary and mandibular molars, respectively, were treated with a piston-elastic. It was bound to the locked molar to improve the eruption path. After a certain time period, the repulsive force pushed the surface of the adjacent tooth, improving the eruption path of the entrapped tooth. The piston-elastic is a novel device that simply and effectively changes the direction of eruption of ectopically entrapped molars. As it can be manufactured and attached to the chair side, impression acquisition on a model cast and laboratory procedures are unnecessary. Compared to existing methods, the piston-elastic can be easily produced and delivered, causes little irritation, and is inexpensive.
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T202103357.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Pediatric Dentistry (소아치과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Chung Min(강정민) ORCID logo https://orcid.org/0000-0001-7813-3741
Kim, Seong Oh(김성오) ORCID logo https://orcid.org/0000-0002-8620-1377
Kim, Ik-Hwan(김익환)
Song, Je Seon(송제선) ORCID logo https://orcid.org/0000-0001-8620-5629
Lee, Jae Ho(이제호) ORCID logo https://orcid.org/0000-0002-1556-3485
Choi, Hyung Jun(최형준) ORCID logo https://orcid.org/0000-0002-3315-6912
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