Survival of Maxillary and Mandibular Bonded Retainers 10 to 15 Years After Orthodontic Treatment : A Retrospective Observational Study.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F19%3A73598741" target="_blank" >RIV/61989592:15110/19:73598741 - isvavai.cz</a>

Result on the web

<a href="https://progressinorthodontics.springeropen.com/articles/10.1186/s40510-019-0279-8" target="_blank" >https://progressinorthodontics.springeropen.com/articles/10.1186/s40510-019-0279-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s40510-019-0279-8" target="_blank" >10.1186/s40510-019-0279-8</a>

Result language

angličtina

Original language name

Survival of Maxillary and Mandibular Bonded Retainers 10 to 15 Years After Orthodontic Treatment : A Retrospective Observational Study.

Original language description

BACKGROUND: The long-term evidence regarding failures of fixed retainers is limited and the aim of this cohort study was to assess the long-term risk of failure of one type of maxillary and two types of mandibular fixed lingual retainers. TRIAL DESIGN: Retrospective cohort study. METHODS: Eighty-eight patients in retention 10-15 years after orthodontic treatment were included. The type of failure; number of failures per tooth, per patient, and retainer; and adverse effects were assessed by (1) a questionnaire, (2) clinical examination, and (3) screening patients&apos; clinical charts. Descriptive statistics were calculated and a Cox regression was used to assess possible predictors for mandibular retainer survival. RESULTS AND CONCLUSIONS: In the mandible, 47 (53.4%) .016″ × .022″ braided stainless steel retainers (SS) were bonded to all six anterior teeth, and 41 (46.6%) .027″ β-titanium (TMA) retainers were bonded to the canines only. From the SS retainers 40.4% and of the TMA retainers 61% had no failures during the whole observation period. SS failures per retainer were 2.17 (3.15) vs. 0.66 (1.03) for TMA. The type of retainer was the only significant predictor for failure. In the maxilla, 82 (93.2%) .016″ × .022″ braided SS retainers were bonded to all four incisors and six retainers (6.8%) to all six anterior teeth. The latter group was not further analyzed due to the small sample size. From the retainers bonded to all four incisors, 74.4% had no failure during the whole observation period. SS average number of failures per retainer bonded to the four incisors was 1.14 (SD 2.93). Overall, detachments were the most frequent type of first failure followed by composite damage. From the original mandibular retainers 98.9% and of the original maxillary retainers 97.6% were still in situ 10-15 years after debonding. No adverse torque changes were observed. LIMITATIONS: Potential effects of selection bias, information bias, and attrition bias as well as possible confounding factors cannot be fully excluded in this study.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30208 - Dentistry, oral surgery and medicine

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Progress in Orthodontics

ISSN

2196-1042

e-ISSN

—

Volume of the periodical

20

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

1

Pages from-to

28

UT code for WoS article

000476621600001

EID of the result in the Scopus database

2-s2.0-85069512205