Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports

The Rect-spring appliance, used for the management of ectopically erupting molars, shows weak retention on mesially tilted molars. We present three modifications of the appliance for better engagement and their advantages. We describe cases of two 7-year-old patients with ectopically erupting maxill...

Full description

Bibliographic Details
Main Authors:	Min Sun Song, Chung-Min Kang, Je Seon Song, Hyung-Jun Choi, Jaeho Lee, Seong-Oh Kim
Format:	Article
Language:	English
Published:	MDPI AG 2021-09-01
Series:	Children
Subjects:	ectopic eruption first molar tilted molar distalization obtuse angle
Online Access:	https://www.mdpi.com/2227-9067/8/9/823

id	doaj-367fdc71011c4bb6b51faab57315cebd
record_format	Article
spelling	doaj-367fdc71011c4bb6b51faab57315cebd2021-09-25T23:54:55ZengMDPI AGChildren2227-90672021-09-01882382310.3390/children8090823Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case ReportsMin Sun Song0Chung-Min Kang1Je Seon Song2Hyung-Jun Choi3Jaeho Lee4Seong-Oh Kim5Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, KoreaDepartment of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, KoreaDepartment of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, KoreaDepartment of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, KoreaDepartment of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, KoreaDepartment of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, KoreaThe Rect-spring appliance, used for the management of ectopically erupting molars, shows weak retention on mesially tilted molars. We present three modifications of the appliance for better engagement and their advantages. We describe cases of two 7-year-old patients with ectopically erupting maxillary first molars with a 2.2 mm and 2.5 mm depth of entrapment, respectively. The modified Rect-spring (mRS) was inserted between the ectopically erupting first molar and adjacent primary second molar, and exerted a distalization force with an interproximal wedging effect at the same time. After 3 months, the ectopically erupting first molars were successfully brought into proper occlusion. No discomfort was reported. The mRS is suitable for various locking cases except for severely tilted molars without requiring any laboratory procedures. We suggest it as the first choice for unlocking the first molars.https://www.mdpi.com/2227-9067/8/9/823ectopic eruptionfirst molartilted molardistalizationobtuse angle
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Min Sun Song Chung-Min Kang Je Seon Song Hyung-Jun Choi Jaeho Lee Seong-Oh Kim
spellingShingle	Min Sun Song Chung-Min Kang Je Seon Song Hyung-Jun Choi Jaeho Lee Seong-Oh Kim Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports Children ectopic eruption first molar tilted molar distalization obtuse angle
author_facet	Min Sun Song Chung-Min Kang Je Seon Song Hyung-Jun Choi Jaeho Lee Seong-Oh Kim
author_sort	Min Sun Song
title	Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports
title_short	Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports
title_full	Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports
title_fullStr	Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports
title_full_unstemmed	Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports
title_sort	modifications of rect-spring to enhance the engagement of ectopically entrapped molars with 2 case reports
publisher	MDPI AG
series	Children
issn	2227-9067
publishDate	2021-09-01
description	The Rect-spring appliance, used for the management of ectopically erupting molars, shows weak retention on mesially tilted molars. We present three modifications of the appliance for better engagement and their advantages. We describe cases of two 7-year-old patients with ectopically erupting maxillary first molars with a 2.2 mm and 2.5 mm depth of entrapment, respectively. The modified Rect-spring (mRS) was inserted between the ectopically erupting first molar and adjacent primary second molar, and exerted a distalization force with an interproximal wedging effect at the same time. After 3 months, the ectopically erupting first molars were successfully brought into proper occlusion. No discomfort was reported. The mRS is suitable for various locking cases except for severely tilted molars without requiring any laboratory procedures. We suggest it as the first choice for unlocking the first molars.
topic	ectopic eruption first molar tilted molar distalization obtuse angle
url	https://www.mdpi.com/2227-9067/8/9/823
work_keys_str_mv	AT minsunsong modificationsofrectspringtoenhancetheengagementofectopicallyentrappedmolarswith2casereports AT chungminkang modificationsofrectspringtoenhancetheengagementofectopicallyentrappedmolarswith2casereports AT jeseonsong modificationsofrectspringtoenhancetheengagementofectopicallyentrappedmolarswith2casereports AT hyungjunchoi modificationsofrectspringtoenhancetheengagementofectopicallyentrappedmolarswith2casereports AT jaeholee modificationsofrectspringtoenhancetheengagementofectopicallyentrappedmolarswith2casereports AT seongohkim modificationsofrectspringtoenhancetheengagementofectopicallyentrappedmolarswith2casereports
_version_	1717367561378594816

Modifications of Rect-Spring to Enhance the Engagement of Ectopically Entrapped Molars with 2 Case Reports

Similar Items