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The reliability of bonded lingual retainers
1rcerny@bigpond.net.au
Australian Orthodontic Journal
|August 8, 2007
Summary
Bonded lingual retainers are generally reliable for orthodontic retention. While failures occur, particularly in male patients and due to trauma, they are repairable, indicating overall effectiveness.
Area of Science:
- Orthodontics
- Dental Materials Science
Background:
- Bonded lingual retainers are increasingly utilized in orthodontic treatment.
- Limited data exists regarding their long-term performance and durability.
Purpose of the Study:
- To evaluate the reliability of bonded upper and lower lingual retainers.
- To identify factors associated with retainer failure.
Main Methods:
- Retrospective analysis of 149 patients with failed fixed lingual retainers (2002-2005).
- Retainers constructed from 0.018-inch round stainless steel heat-treated wire.
- Data collected on teeth involved, patient demographics, failure cause, and repair time.
Main Results:
- 35-40 patients annually required retainer repair/replacement.
- 9% of patients experienced multiple bond failures.
- Males showed double the fracture rate of females; trauma (extra- and intra-oral) was a leading cause.
Conclusions:
- Bonded lingual retainers demonstrate a reliable performance in maintaining orthodontic treatment outcomes.
- Understanding failure factors can optimize retainer longevity and patient care.
