12-month self-ligating bracket failure rate with a self-etching primer.
Angle Orthod
; 78(6): 1095-100, 2008 Nov.
Article
en En
| MEDLINE
| ID: mdl-18947290
ABSTRACT
OBJECTIVE:
To compare the clinical performance of a self-etching primer (SEP) with a conventional two-step etch and primer method (CM). MATERIALS ANDMETHODS:
Study subjects were 39 patients with a mean age of 15 years 7 months. Six hundred and eighty-eight brackets were bonded by one operator with a split-mouth design, using Transbond Plus Self-Etching Primer or a conventional two-step etch and primer (Transbond XT). The survival rate of the brackets was estimated by the Kaplan-Meier analysis. Bracket survival distributions with respect to bonding procedure, dental arch, type of tooth (incisor, canine, and premolar) and patients' gender were compared using the log-rank test. Bond failure interface was determined using the Adhesive Remnant Index (ARI).RESULTS:
The bond failure rates of SEP and CM were 4.7% and 1.7%, respectively. A significant difference was found between the bonding procedures using the log-rank test (P < .05). Furthermore, canine and premolar teeth displayed a lower survival rate than incisor teeth (P < .05). Survival rates did not show significant differences between the upper and lower dental arches and patients' gender (P > .05). No significant difference was observed for ARI scores (P > .05).CONCLUSION:
These findings indicate that the SEP (Transbond Plus) can be effectively used to bond orthodontic brackets.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Soportes Ortodóncicos
/
Cementos de Resina
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Curación por Luz de Adhesivos Dentales
Tipo de estudio:
Clinical_trials
Límite:
Adolescent
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Child
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Female
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Humans
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Male
Idioma:
En
Año:
2008
Tipo del documento:
Article