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Failure evaluation after a 6-year retention period: A comparison between glass fiber-reinforced (GFR) and multistranded bonded retainers.
MedLine Citation:
PMID:  22240271     Owner:  NLM     Status:  Publisher    
OBJECTIVES: The aim of this study was to compare bond failure and breakage rates of two types of bonded lingual orthodontic retainers (GFR and .0175" multistranded stainless steel wire [MST]) after a 6-year retention period. SUBJECTS AND METHODS: Eighty-five young adults were randomly divided into two groups: 40 subjects received 48 GFR retainers (14 maxillary and 34 mandibular retainers), and 45 subjects received 50 MST retainers (18 maxillary and 32 mandibular retainers). A Fisher's exact test was performed in order to identify significant differences in the percentage of detachment and breakage of the retainers between the groups. RESULTS: The maxillary detachment rates were 21.42% for the GFR group and 22.22% for the MST group; the mandibular detachment rates were 11.76% for the GFR group and 15.62% for the MST group. The maxillary breakage rates were 7.14% for the GFR group and 16.66% for the MST group; the mandibular breakage rates were 8.82% for the GFR group and 15.62% for the MST group. The differences were not statistically significant. CONCLUSION: GFR and multistranded stainless steel retainers showed similar results in terms of bond failure and breakage after 6years of retention. The use of GFR retainers as a retention strategy should not be discouraged and could be considered a viable esthetic alternative to stainless steel wire retainers.
Eugenio Bolla; Mauro Cozzani; Tiziana Doldo; Mattia Fontana
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-10
Journal Detail:
Title:  International orthodontics / College europeen d'orthodontie     Volume:  -     ISSN:  1879-680X     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101184882     Medline TA:  Int Orthod     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 CEO. Published by Elsevier Masson SAS. All rights reserved.
Via XX Settembre 20, 16121 Genova, Italy.
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