Severe complication of a bonded mandibular lingual retainer

Piotr, Fudalej; Katsaros, Christos; Pazera, Pawel (2014). Severe complication of a bonded mandibular lingual retainer. L'Orthodontie française, 85(2), pp. 217-222. 10.1051/orthodfr/2013060

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Bonding a flexible spiral wire retainer to the lingual surfaces of all six anterior mandibular teeth is a commonly used type of retention. Complications are rare but can be serious enough to produce biologic damage. This article presents a serious complication of a lingual flexible spiral wire retainer. Four years after the orthodontic treatment, a 20-years-old man sought treatment for a broken flexible spiral wire retainer. The clinical examination showed about 35° of buccal root torque of that tooth. A cone-beam computed tomography image showed that the root and the apex of the tooth were almost completely out of the bone on its buccal side. Surprisingly, the tooth's vitality was preserved. The tooth was moved back, nearly to its original position; clinically, only a gingival recession remained. Orthodontists and dentists should be aware of possible complications of bonded retainers. Patients should be clearly informed how to detect problems at an early stage.

Item Type:

Journal Article (Further Contribution)


04 Faculty of Medicine > School of Dental Medicine > Department of Orthodontics

UniBE Contributor:

Katsaros, Christos and Pazera, Pawel


600 Technology > 610 Medicine & health






Eveline Carmen Schuler

Date Deposited:

08 Jan 2015 12:05

Last Modified:

25 Jan 2017 12:15

Publisher DOI:


PubMed ID:



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