Quantitative evaluation and affecting factors of post-treatment relapse tendency / 대한치과교정학회지
Korean Journal of Orthodontics
; : 154-163, 2011.
Article
em Ko
| WPRIM
| ID: wpr-651034
Biblioteca responsável:
WPRO
ABSTRACT
OBJECTIVE:
The purpose of this study was to quantitatively evaluate relapse tendency after orthodontic treatment and determine the contributing factors by using the American Board of Orthodontics objective grading system (ABO-OGS).METHODS:
The subjects were 80 patients with more than 2 years of retention period after completing orthodontic treatment at the dental hospitals of Busan University, Kyunghee University, and Dankook University. The posttreatment (T2) and post-retention (T3) ABO-OGS measurements were analyzed in relation to age, gender, Angle's classification, extraction, retention period, and pretreatment condition (initial peer assessment rating (PAR) index, T1) by multiple regression analysis.RESULTS:
Among the 7 ABO-OGS criteria, alignment worsened but occlusal contact and interproximal contact improved in T3, but not in T2 (p < 0.01). The 4 other criteria showed no significant differences. Multiple regression analysis showed that alignment, occlusal relationship, overjet, and interproximal contact were significant linear models, but with a low explanation power. Age, gender, Angle's classification, extraction, retention period, and pretreatment condition (initial PAR index, T1) had little influence on the ABO-OGS changes between T3 and T2.CONCLUSIONS:
An orthodontist's understanding of post-treatment relapse tendency can be useful in diagnosis and during patient consultation.Palavras-chave
Texto completo:
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Base de dados:
WPRIM
Assunto principal:
Ortodontia
/
Recidiva
/
Retenção Psicológica
/
Modelos Lineares
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Estudos de Avaliação como Assunto
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Má Oclusão
Tipo de estudo:
Diagnostic_studies
/
Evaluation_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
Ko
Revista:
Korean Journal of Orthodontics
Ano de publicação:
2011
Tipo de documento:
Article