A comparative clinical trial of a compomer and a resin adhesive for orthodontic bonding.
Angle Orthod
; 70(3): 233-40, 2000 Jun.
Article
en En
| MEDLINE
| ID: mdl-10926433
The study aimed to compare the survival time and cariostatic potential of a compomer to that of a resin adhesive when used to bond stainless steel orthodontic brackets to labial segment teeth only. The effect of the patients' sex, age at the start of treatment and presenting malocclusion on bracket survival time was assessed also. Forty-five consecutive patients who attended for fixed appliance therapy were randomly selected. Four hundred twenty-six brackets were bonded (213 with compomer and 213 with resin adhesive) with a split mouth design; the right or left side allocation of compomer in either arch was alternated. Color transparencies of the maxillary incisors, mandibular incisors, or both, and transparencies of the canines, were taken before treatment. At the debond stage, the transparencies were projected (20x) and assessed by an experienced examiner, who used a caries index. The survival time distributions for brackets bonded with each bonding agent were not significantly different (P = .74, paired Prentice-Wilcoxon test; P = .75, Akritas test), with bracket failure rates of 17% and 20% recorded for compomer and resin adhesive, respectively. Neither the patients' sex (P = .85) nor malocclusion (P = .26) appear to affect significantly bracket survival, but patient age was identified as a useful prognostic indicator of bracket survival (P < .001). On average, there was more decalcification related to brackets bonded with resin adhesive than with compomer (P = .0075). Survival time distributions of brackets bonded with compomer or resin adhesive appear comparable, but decalcification was reduced significantly by bonding with compomer.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Recubrimiento Dental Adhesivo
/
Soportes Ortodóncicos
/
Cementos de Resina
/
Compómeros
Tipo de estudio:
Clinical_trials
/
Diagnostic_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Female
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Humans
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Male
Idioma:
En
Revista:
Angle Orthod
Año:
2000
Tipo del documento:
Article
Pais de publicación:
Estados Unidos